Chapter 8 Amines Amines: a class of organic compounds of nitrogen that may be considered as derived from ammonia (NH3) by replacing one or more of the hydrogen atoms -derivatives of Ammonia -number of "R" groups varies and is attached to Nitrogen Amides: the organic functional group characterized by a carbonyl group (C=O) linked to a nitrogen atom (N), contain carbonyl Carbon attached to Nitrogen, so most "R" groups on Nitrogen is 2. Note: Amides in Chap 11, will cover now! -carboxylic derivatives -named after corresponding acid, with ending of "amide" (see below) -Cyclic Amides and Barbiturates (see button for more info) Nomenclature: add suffix "amine" to group Nitrite Preservatives Processed meats and cancer website Danger of processed meats website • NO2 ion reaches the stomach and converts to HONO after reacting with HCl • HONO + 20 amines N-nitrosamines, which is a carcinogen. • Results: – Nitrite disables hemoglobin..infants blood contains less hemoglobin than adults…so more dangerous – Lymphatic system cancers detected in lab animals – Stomach cancer increase – Nitrites found in: bacon, ham, hot dogs, many deli meats…found as sodium nitrite…gives meat its pinkish color and inhibits bacterial growth (botulism) General Drug Classifications • Website • Process/Cost to develop new drugs CNS Stimulants and Depressants • • • • • • Increase heart rate …pulse …blood pressure …breathing rate … reactions Dilate bronchioles …pupils • Some will increase blood glucose levels…use as diet pills • • • • • • • • Decrease heart rate …pulse …blood pressure …breathing …reactions Constrict pupils Slurred speech balance Nicotine and Caffeine -CNS stimulants -nicotine actually a poison to insects (insecticide use) -caffeine in: chocolate, cocoa, colas, "NoDoz" What is Caffeine? • Caffeine (C8H10N4O2), or trimethylxanthine, • is a: • CNS stimulant • cardiac muscle stimulant • respiratory system stimulant • mild diuretic. History of Caffeine • Caffeine is one of the world’s most widely used drugs. It was first extracted from coffee in 1821. It originated in Ethiopia and by the fourth century AD it was introduced to Arabia and the rest of the east. Nomads saw the effects that it had on animals and how it gave them extra energy. Therefore it was used in religious ceremonies so that people could stay up all night and pray. • Coffee was introduced to the Europeans in 1573 • Tea was introduced in 1657 and became very popular. • Chocolate milk was introduced in Switzerland in 1873. What is Caffeine? • Caffeine is medically known as trimethylxanthine • It is a alkaloid and its chemical formula is C8H10N4O2 • When isolated in pure form it’s a crystalline powder and tastes bitter. • It is used as a cardiac stimulant or a mild diuretic which flushes out the system • Many people use this to feel a “boost of energy” or used to stay awake longer This is the chemical structure of caffeine How Caffeine Works • This drug causes a chemical change in the brain in two ways: – First, caffeine mimics adenosine and binds to all other adenosine receptors in your brain. This prevents the real adenosine from doing its job which happens to be the slowing down of nerve impulses and the cause of drowsiness. – Second, caffeine also increases the dopamine (a neurotransmitter which activates the “pleasure center”) in your brain improves the well-being and mood. This is also one reason why this drug is so addictive. – Caffeine is mainly found in beans, leaves, fruits, and over 60 plants where it acts as a pesticide to kill insects. An “Addictive Drug” • 90% of American’s consume caffeine in one form or another every day • More than ½ of American adults consume more than 300mg of caffeine every day • It is addictive because it uses the same mechanism that amphetamines such as cocaine and heroine use to stimulate the brain • These drugs close the blood vessels in the brain so that the body cannot go to sleep, releasing a rush of adrenaline into the body. Withdrawal of Caffeine Many people that consume caffeine on a daily basis will experience these withdrawal effects: • • • • • Headaches Irritability Nervousness Restlessness Insonmia Caffeine Products • • • • • • • Coffee 80-135 mg of caffeine Decaf Coffee 2-3 mg of caffeine Espresso 100 mg of caffeine Coke/Diet Coke 45.6 mg of caffeine Mountain Dew 55 mg of caffeine Chocolate 28 mg of caffeine Tea 40-60 mg of caffeine Where is Caffeine Found? • Caffeine is present in coffee, tea, soft drinks, chocolate, and kola nuts. • Colas contain relatively low amounts of caffeine, but also contain other alkaloids that can enhance caffeine reactions. • Coffee tends to work best for long-lasting alertness. How Does Caffeine Work? • Nerve cells mistake caffeine for adenosine, a hormone that causes drowsiness. So caffeine binds to adenosine receptors. • One of the mechanisms that caffeine addiction, cocaine addiction, and heroin addiction share, is that they block an adenosine's ability to slow the nerve cells' activity in preparation for sleep, and instead increase the speed of their activity and of the neuron firing in the brain. The caffeine causes the blood vessels in the brain to constrict, because it has blocked the adenosine's ability to open them to allow sleep. The ability of caffeine to close the blood vessels is why many pain relievers contain caffeine. If a person has a vascular headache, the caffeine in the medicine will shut down the blood vessels, thus easing the pain. • As a result, nerve cells don’t take in adenosine and, therefore, begin to speed up. • Brain activity is increased, which causes the pituitary gland to release adrenaline. This boosts alertness. • Caffeine also stimulates the hormone dopamine, which makes one happy. • This is why caffeine is addictive. • Also, it constricts blood vessels in the brain The Benefits of Caffeine • Caffeine is a vasoconstrictor, so it can sometimes relieve headaches caused by dilated blood vessels. • It also promotes alertness and makes one feel happy. Downsides to Caffeine Use • After a caffeine-induced adrenaline high, lows occur causing tiredness and depression. • Such lows cause one to consume more caffeine and to eventually become caffeine-dependent. • Caffeine has a half-life of 6 hours. If it is consumed late in the day, it hinders deep sleep as adenosine (essential for sleep) is blocked. Caffeine as Medication • Caffeine can be taken in powder and tablet form to promote alertness. • Yet caffeine pills should only be taken for short periods of time. • Some symptoms of a caffeine overdose include: • tremors, trouble sleeping, dizziness, rapid heartbeat, and nausea. Some Side Effects of Normal Caffeine Use • Caffeine consumption in large amounts has been shown to decrease bone mineral density. • A caffeine-dependent cycle can occur, which brings with it severe headaches if a person does not get caffeine. • Deep sleep can be affected. Side Effects for Mothers • During pregnancy, large and daily doses of over 300 mg (equal to 3 cups of coffee) may hinder the development of a fetus or promote miscarriages. • Caffeine use while breastfeeding may make an infant jittery. *Increased talkativeness *Increased aggressiveness *Increased breathing rate *Increased heart rate *Increased blood pressure *Reduced appetite *Dilated pupils *Visual hallucinations Head aches Stunted growth Insomnia Nervous Coma Hallucinations There are many long term effects due to amphetamines. Mental illness like paranoid schizophrenia, malnutrition, violence and aggression, infections due to IV injections, and blockage of blood vessels are all long-term effects of amphetamines. -CNS Stimulant, effects brain & spinal cord -Amphetamines are used as diet pills because they raise glucose level in blood. Body doesn’t need food, person doesn’t eat because stomach feels full because the glucose is high. (note: amphetamines are not a safe or effective way to lose weight.) The effects of using amphetamines can be deadly. Amphetamines are an addictive drug, can cause serious damage to ones health. The most severe effect of amphetamines are popping of the blood vessels in the brain, or heart failure. Methylphenidate (Ritalin) • Website • Methylphenidate is a medication prescribed for individuals (usually children) who have attention-deficit hyperactivity disorder (ADHD), which consists of a persistent pattern of abnormally high levels of activity, impulsivity, and/or inattention that is more frequently displayed and more severe than is typically observed in individuals with comparable levels of development. • Methylphenidate is a central nervous system (CNS) stimulant. It has effects similar to, but more potent than, caffeine and less potent than amphetamines How Ritalin works • Methylphenidate works by affecting some of the natural chemicals that are found in the brain. In particular, it increases the activity of chemicals called dopamine and noradrenaline in areas of the brain that play a part in controlling attention and behaviour. These areas seem to be underactive in children with ADHD. It is thought increasing the activity of these chemicals improves the function of these underactive parts of the brain. We still don’t fully understand how stimulants work in children with ADHD, and they don’t work for everyone. But they can be very useful at helping some children to learn to control their behaviour. More Ritalin info… • Doctors aren't really sure how Ritalin works on ADHD kids. Ritalin is a stimulant medication. When you consider that kids with ADHD are already over-stimulated, it is hard to understand how a stimulant drug will help to calm them down. Doctors think it has to do with some of the neurons in the brain. Instead of being balanced as they should, some of the neurons work overtime while others are under worked. For some reason, Ritalin stimulates the neurons that aren't working as they should. The area of the brain that tells one when to pay attention to certain activities and to ignore other ones is "lazy" in ADHD sufferers . Ritalin stimulates those neurons so that the child can pay attention and focus on his activities. -all have 7 membered ring containing 2 Nitrogens -CNS depressants -Valium (diazapam) most common/Librium TRANQUILIZERS • Tranquilizers are divided into a Major Tranquilizer and Minor Tranquilizer group. • Major Tranquilizers include phenothiazines, indoles, thioxanthenes, butyrophenones, piperazine compounds, and piperidine compounds. Trade names include drugs such as Thorazine, Haldol, Clozaril and Risperdal. These drugs are referred to as Neuroleptics and are most commonly prescribed as anti-psychotics. This type of tranquilizer is not widely abused. • Minor Tranquiliers are the more common of the tranquilizers. These include the Benzodiazepines, known by trade names such as Valium, Xanax, Serax, Ativan, Klonopin, Librium and Tranxene. There are also combination drugs such as Librax. These drugs are very commonly prescribed as anti-anxiety drugs, or anxiolytics. They are often referred to as Sedative/Hypnotics. They are central nervous system depressants with specific sites of action. Slang references to these drugs include Libs, Tranks, Benzos, and Vees. • The primary route of administration for these medications is oral, swallowed as a tablet, capsule, or liquid. They are also available in solution form for intravenous use. Effects of Tranquilizers • The minor tranquilizers induce a feeling of calm and relaxation. Commonly used pre-surgery to relax the patient. Depending on the medication and dosage this can range from feelings of mild euphoria to states of drowsiness, confusion, and lightheadedness. Effects can include hostility, blurred vision, hallucinations, lethargy, headaches, memory loss, disorganized thinking, and irritability. Other common effects include impaired motor function, dry mouth, nausea, vomiting, and sweating. Certain Benzodiazepines, including Valium, can produce toxic reactions when combined with alcohol. • The Benzodiazepines (Minor Tranquilizers) can be addictive even at prescribed dosages if the medication is administered for long periods of time. The withdrawal process can be painful and even life-threatening with some of the Benzodiazepines. Physical withdrawal symptoms can include general pain, stomach cramps, diarrhea, flu-like symptoms, and heart palpitations. There is also the possibility of seizure with certain medications. The withdrawal can also produce psychosis, hallucinations, delusions, paranoia, • Common type of sleeping pills = antihistimines, over the counter sleeping pills that contain diphenhydramine (benadryl, etc) • Barbiturates were used to treat symptoms, but stopped being used because side effects mirrored drunkenness (slurred speech, hangover, etc) • Benzodiazepines = presently used types of pills • Most commonly abused drug because of easy access • Effect the GABA gating system, central to thoughts/brain activity • Make chloride channel in middle of GABA open so chloride can flow through • Chloride keeps cells from being activated so system is quieted, can’t promote sleep • CNS depressant • Suggested doses: no more than 10 mg (adult), 5 mg (elderly) • Used as sedatives and tranquilizers • Treat anxiety & help with short-term sleep problems • Help with insomnia, jet lag • Symptomatic cure, not causal • Should only be used for brief periods of time (2 weeks max) • NOT to be used for sleep apnea – (obstruction of throat/delay of brain signal reminding body to breathe), need to be able to wake up • Physical dependence- body adapts to the presence of the drug • Hallucinations, sleep walking, sleep driving, etc • Withdrawal symptoms may include: – – – – – – – – anxiety restlessness insomnia irritability gastrointestinal problems loss of appetite trembling/weakness increased sensitivity to light, sound, smells -barbituric acid 1st one and a cyclic amide -physiological effect of being a CNS depressant -act as sedatives in small doses or induce sleep (general anethesia-see next slide for current drugs used in general anethesia) in large doses (see specific examples in text) -synergistic effect with othe CNS depressants Current General Anesthesia • • • induction agents For 50 years, the most commonly used induction agents were rapidly acting, water-soluble barbiturates such as thiopental, methohexital, and thiamylal. These drugs are not commonly in use today. Propofol, a nonbarbiturate intravenous anesthetic, has displaced barbiturates in many anesthesia practices. – The use of propofol is associated with less postoperative nausea and vomiting and a more rapid, clear-headed recovery. – In addition to being an excellent induction agent, propofol can be administered by slow intravenous infusion instead of vapor to maintain the anesthesia. – Among its disadvantages are the facts that it often causes pain on injection and that it is prepared in a lipid emulsion, which, if not handled using meticulous aseptic precautions, can be a medium for rapid bacterial growth. • Anesthesia can also be induced by inhalation of a vapor. This is how all anesthetics were once given and is a common and useful technique in uncooperative children. It is reemerging as a choice in adults. Sevoflurane is most commonly used for this purpose. What are they? • Barbiturates are CNS depressants. There are over 2,000 known barbiturates. • Barbiturates are some of the most addictive drugs. They are often used to substitute for alcohol because similar effects are produced. Physiology Of Barbiturates • Barbiturates are depressants. They are used as medication for the treatment of mental illnesses, epilepsy, insomnia, and any type of hyper excitement. • They reduce cranial pressure and • They also induce sleep and subdue pain. • Their main uses in this era is a general anesthetics they are very effective, they will put anyone to sleep in ten seconds. • They work by enhancing the GABA neurotransmitter by bind to the receptor for GABA. Barbiturates dissolve easily in fat. Barbiturates : History • In 1864, Adolph von Baeyer added urea to diethyl malonate in the presence of ethoxide ion. The result of this was a cyclic compound that Baeyer called barbituric • It was later discovered that certain derivatives of barbiturate acids , such as Pentothal, Pentobarbital, and Sectobarbital have powerful psychological effects. When Barbiturates are prescribed… • Treatment of disorders such as insomnia, anxiety, tension, and epileptic seizures. • 50 mg is a normal dosage that may be prescribed but because rapid tolerance may occur, up to ten times this amount may be needed to produce a similar effect. Immediate Effects: appear rapidly and may last from hours to days • • • • • • • • • Sleepiness Slurred speech Trouble walking, balancing, etc. Emotional Instability “floating” sensation Slowing of heartbeat Shallow breathing Sense of relaxation Reduced attention span Long Term Effects • • • • • • Increased aggressiveness Severe depression Physical dependence Withdrawal reactions Vision problems Chronic tiredness Side Effects • • • • Skin rashes Nausea Dizziness Increases blood pressure, heart rate, breathing rate, and body temp. • Heart attacks, strokes, and respiratory failure, brain seizures. Withdrawal symptoms • • • • • Hallucinations Eating disorders Disorientation Vomiting Sleep disorders Barbiturates and other depressants • When combined with other CNS depressants like Demerol, heroin, morphine, and codeine it is extremely dangerous. The combination of alcohol and barbiturates can often be lethal. • If one has allergies and takes antihistamines along with barbiturates this may cause respiratory arrest. Barbiturates and stimulants • Barbiturates are often used to counteract large doses of stimulants such as cocaine or amphetamines. • This mixture may cause increased heart rate and coronary arrest. The Chemistry of Depression • Neurological research has identified over 50 kinds of neurotransmitters. Scientists have found that several neurotransmitters are directly related to mental health problems. These specific neurotransmitters are Dopamine, Serotonin, Norepinephrine, and Gamma Aminobutyric Acid. A shortage or excess of these neurotransmitters are thought to be responsible for emotional disorders like anxiety, depression, ADHD, social anxiety and mood disorder. • There are three basic molecules, known chemically as monoamines, which are thought to play a role in mood regulation: norepinephrine, serotonin and dopamine. • website Neurotransmitters website • How They Work Once the brain's three neurotransmitters, known as monoamines (serotonin, norepinephrine, and dopamine), have played their part in sending messages in the brain, they get burned up by a protein in the brain called monoamine oxidase, a liver and brain enzyme. Antidepressants known as monoamine oxidase inhibitors work by blocking this cleanup activity. When the excess neurotransmitters don't get destroyed, they start piling up in the brain. And since depression is associated with low levels of these monoamines, it's not surprising that increasing the monoamines ease depressive symptoms. Unfortunately, monoamine oxidase doesn't just destroy those neurotransmitters; it's also responsible for mopping up another amine called tyramine, a molecule that affects blood pressure. So when monoamine oxidase gets blocked, levels of tyramine begin to rise, too. And that's when the trouble starts. While a hike in neurotransmitters is beneficial, an increase in tyramine is disastrous. Excess tyramine can cause a sudden, sometimes fatal increase in blood pressure so severe that it can burst blood vessels in the brain. Every time you eat chicken liver, aged cheese, broad-bean pods, or pickled herring, tyramine floods into your brain. Normally, MAO enzymes take care of this potentially harmful tyramine excess. But if you're taking an MAO inhibitor, the MAO enzyme can't stop tyramine from building up. This is exactly what happened when the drugs were introduced in the 1960s. Because no one knew about the tyramine connection, a wave of deaths from brain hemorrhages swept the country. Other patients taking MAO inhibitors experienced severe headaches caused by the rise in blood pressure. These early side effects were particularly disturbing because nobody knew why they were happening. Neurotransmitters SSRI’s • Serotonin Re-Uptake Inhibitor = Impairing Body Serotonin Metabolism SSRI's are "Selective Serotonin Re-Uptake Inhibitors." Neuronal re-uptake of neurotransmitters is metabolism. What serotonin re-uptake inhibitor actually means is that the SSRI-antidepressant interferes with ones ability to metabolize serotonin, so that will build up. In other words, an SSRI-antidepressant impairs the ability of cells to metabolize serotonin, not only in the brain, but -since serotonin is widely distributed throughout the body- in the body as well! Serotonin info. • In the brain, messages are passed between two neurons (nerve cells) via a synapse, a small gap between the cells. The neuron that sends the information releases neurotransmitters (with serotonin among them) into that gap. The neurotransmitters are then recognized by receptors on the surface of the recipient cell, which upon this stimulation, in turn, relays the signal. About 10% of the neurotransmitters are lost in this process, the other 90% are released from the receptors and taken up again by monoamine transporters in the sending cell (a process called reuptake). • Depression has been linked to a lack of stimulation of the recipient neuron at a synapse. To stimulate the recipient cell, SSRIs inhibit the reuptake of serotonin. As a result, the serotonin stays in the synaptic gap longer than it normally would, and has the chance to be recognized again (and again) by the receptors of the recipient cell, which can finally be stimulated fully Serotonin Levels • • • • • • • • • • • Serotonin Levels General Effects "This neurotransmitter regulates · the onset of sleep, · sensory perception, · mood and depression, · body temperature, Normal Serotonin Levels · "Regulates sleep, · reduces pain and appetite, and · generally calms you down and improves your mood. Serotonin Levels • • • • • • • • • • • • • • Low Serotonin Levels "Low levels of serotonin are associated with · increased carbohydrate cravings · depression · heightened sensitivity to pain, and · troubled sleep patterns Very low levels: suicide/violent crimes/drug abuse/hostility/impulsiveness/OCD/eating disorders Higher Serotonin Levels "When serotonin levels are increased, · carbohydrate cravings subside, · mood is elevated, · pain tolerance improves, and · sleep is more restful. Very High Levels: schizophrenia/mood disorders/psychosis/autism Depression and Serotonin cont… • Low serotonin levels are believed to be the cause of many cases of mild to severe depression which can lead to symptoms such as anxiety, apathy, fear, feelings of worthlessness, insomnia and fatigue. The most concrete evidence for the connection between serotonin and depression is the decreased concentrations of serotonin metabolites in the cerebrospinal fluid and brain tissues of depressed people. Dopamine, Depression and Drug Addiction • • • A third substance that may play a role in mood is dopamine. Dopamine is associated with the reward, or reinforcement, that we get which causes us to continue participating in an activity. It has been implicated in such conditions as Parkinson's Disease and schizophrenia. There is also some evidence that, at least for a subset of patients, dopamine plays a role in depression.6 Dopaminergic substances and stimulants have been used as antidepressants when other measures have failed.7 Some studies have investigated dopaminergic agents as a rapid method of relieving depression (in contrast to medications which may take up to six weeks to exhibit their full effect).8 Although agents that work selectively on dopamine have the benefit of fast action, they have also exhibited some properties which have kept them from being as widely used as other antidepressants. Dopamine is a neurotransmitter that is associated with addiction and it's production is stimulated by drugs such as cocaine, opiates and alcohol (which may explain why depressed persons choose to self-medicate with drugs and alcohol Dopamine website Alkaloids • -basic compound obtained from a plant • -many have physiological effects • -widespread in nature, structures vary • (see examples below) Opium based drugs Opium Opium (Papaver somniferum) \ô-pë-æm\ n {ME, fr. Opion, fr. Dim. Of addictive narcotic the dried juice of L. fr. Gk. opos sap} : an drug that is a poppy Opium Please! • Opium is grown mainly in India and Turkey. • The legitimate world demand for opium amounts to about to about 680 metric tons a year, but many times that amount is distributed illegally. It is processed into the alkaloid morphine which has long served as the chief painkiller in medical practice, although synthetic substitutes such as meperidine (trade name Demerol) are now available. Heroin, a derivative of morphine, is about three times more potent. Codeine is another important opium alkaloid. Molecules of opiates have painkilling properties similar to endorphins/enkephalins produced in the body. They occupy many of the same nerve-receptor sites and bring on the same analgesic effect as the body’s natural painkillers. OUCH!!! • Narcotic analgesics,aka opioids, include opium and the natural opium derivatives codeine and morphine; synthetic derivatives of morphine such as heroin; and synthetic drugs such as meperidine and propoxyphene hydrochloride. Narcotics relieve pain by acting on specific structures, called receptors, located on the nerve cells of the spinal cord or brain. Give me more…! • In the 1970s scientists isolated substances called enkephalins, which are naturally occurring opiates in the brain. They discovered what many believe is the reason behind physical dependence on opioids—that is, the drugs may mimic the action of enkephalins. If true, this hypothesis suggests that physical dependence on opioids may develop in people who have a deficiency of these natural substances. Today opium is sold on the street as a powder or dark brown solid and is smoked, eaten, or injected. Heroin addicts in the U.S. number close to half a million people. Although the synthetic narcotic methadone has been used to offer addicts some relief from opiates, it is itself addictive. Complete recovery from opiate addiction requires years of social and psychological rehabilitation "One must not think life with the mind, but with opium" -André Malraux "It banishes melancholy, begets confidence, converts fear into boldness, makes the coward eloquent, and dastards brave. Nobody, in desperate circumstances, and smiling under a disrelish for life, ever laid violent hands on himself after taking a dose of opium, or ever will." John Brown (1735 - 1788) Opium Julie Woods Opium Uses and Physiology • Opium is prescribed to treat diarrhea or pain. • Opiates slow respiration and heartbeat, suppress the cough reflex, and relax the smooth muscles of the gastrointestinal tract • Opiates act by binding to specific receptor melocules for the endorphin/enkephalin class of neurotransmitters in the brain. These are among the neurotransmitters that control movement, moods, and physiology. Chemistry of Opium • Opium contains over 30 alkaloids. The most abundant of which is Morphine, Codeine, and Thebaine. The opium alkaloids are largely combined with the dibasic acid, meconic acid. • Morphine Meconicacid Effects of Opium • • • • • • • • • • • • • • Euphoria sense of emotional detachment absence of pain and stress altered mood and mental processes Sleepiness Vomiting loss of appetite reduced sex drive itchy skin increased urination Sweating inability to concentrate impaired vision death Side/Withdrawal effects • The most detrimental sideeffect of Opium is addiction. People have to continue taking opium or suffer terrible withdrawal effects like: • Malnutrition • respiratory complications • low blood pressure • mental and physical health problems • severe constipation • contracted pupils • Moodiness • menstrual irregularities • lung, liver, kidney and brain damage • collapsed veins from injecting the drug • loss of weight • reduction of sex hormone levels • frequent infections • pregnancy complications including still birth • death Historical Background • Opium began being used as a medical drug as early as 100 A.D. • Opium Wars- Britain flooded China with opium, forcing them into addiction. The Chinese Government banned opium, but the trade continued illegally. • This escalated into a trading war in 1839 • Conflict began a long history of Chinese suspicion towards the West. Morphine The History of Morphine • Morphine comes from opium which is derived from poppy plants. Morphine was first isolated form opium in 1805 by Friedrich Serturner. • It wasn’t until almost 50 years later, when the hypodermic needle was invented, that morphine was widespread. History of Morphine Continued • Morphine is now the most widely used analgesic after almost 200 years of being discovered. Chemistry of Morphine • Morphine is an alkaloid that is extracted for opium. It is used as a pain killer and can be taken in many forms such as injected, smoked, sniffed or swallowed. Uses of Morphine • Morphine is primarily used as a very strong pain reliever. For both moderately sever to very sever pain.It can be used for relief of certain types of labored or difficult breathing and is sometimes rarely used for sever cough. Uses Continued • If a person has a chronic or debilitating illness morphine may be given regularly but this is still being debated by doctors. Uses Continued • If morphine is abused or taken for a long time a profound physical and psychological dependency may occur. But even though it is addictive it is rarely found as a street drug but is refered to as “M”, morph or Miss Emma. Uses Continued • Because of the risk of dependency for the drug, doctors practice strict regulations on it. Overall, Morphine is a very good pain reliever but must be treated with respect. Is Morphine in Cheese? • • • • Morphine, of course, is an opiate and is highly addictive. So how did it get into milk? At first, the researchers theorized that it must have come from the cows' diets. After all, morphine used in hospitals comes from poppies and is also produced naturally by a few other plants that the cows might have been eating. But it turns out that cows actually produce it within their bodies, just as poppies do. Traces of morphine, along with codeine and other opiates, are apparently produced in cows' livers and can end up in their milk. But that was only the beginning, as other researchers soon found. Cow's milk-or the milk of any other species, for that matter-contains a protein, called casein, that breaks apart during digestion to release a whole host of opiates, called casomorphins. A cup of cow's milk contains about six grams of casein. Skim milk contains a bit more, and casein is concentrated in the production of cheese. If you examined a casein molecule under a powerful microscope, it would look like a long chain of beads (the "beads" are amino acids-simple building blocks that combine to make up all the proteins in your body). When you drink a glass of milk or eat a slice of cheese, stomach acid and intestinal bacteria snip the casein molecular chains into casomorphins of various lengths. One of them, a short string made up of just five amino acids, has about one-tenth the pain-killing potency of morphine. What are these opiates doing there, hidden in milk proteins? It appears that the opiates from mother's milk produce a calming effect on the infant and, in fact, may be responsible for a good measure of the mother-infant bond. No, it's not all lullabies and cooing. Psychological bonds always have a physical underpinning. Like it or not, mother's milk has a drug-like effect on the baby's brain that ensures that the baby will bond with Mom and continue to nurse and get the nutrients all babies need. Like heroin or codeine, casomorphins slow intestinal movements and have a decided antidiarrheal effect. The opiate effect may be why adults often find that cheese can be constipating, just as opiate painkillers are. Cheese and Morphine continued… • • • • It is an open question to what extent dairy opiates enter the adult circulation. Until the 1990s, researchers thought that these protein fragments were too large to pass through the intestinal wall into the blood, except in infants, whose immature digestive tracts are not very selective about what passes through. They theorized that milk opiates mainly acted within the digestive tract and that they signaled comfort or relief to the brain indirectly, through the hormones traveling from the intestinal tract to the brain. But French researchers fed skim milk and yogurt to volunteers and found that, sure enough, at least some casein fragments do pass into the bloodstream. They reach their peak about 40 minutes after eating. Cheese contains far more casein than other dairy products do. As milk is turned into cheese, most of its water, whey proteins, and lactose sugar are removed, leaving behind concentrated casein and fat. Cheese holds other drug-like compounds as well. It contains an amphetamine-like chemical called phenylethylamine, or PEA, which is also found in chocolate and sausage. And there are many hormones and other compounds in cheese and other dairy products whose functions are not yet understood. In naloxone tests, the opiate-blocking drug eliminates some of cheese's appeal, just as it does for chocolate. Morphine and Codeine Morphine’s structure HO O N HO CH 3 Morphine facts: • Morphine is a naturally occurring substance in the opium poppy, Papayer somniferum. • It is a narcotic analgesic, used primarily for pain • After Heron, it has the highest dependency for these type of drugs • Taken by Injection, smoking, sniffing or swallowing More Morphine fact: • Produces euphoria and a general state of relaxation • Also used to relieve breathing problems, and severe coughs With the invention of the hypodermic needle during the American Civil War, the injection of morphine became indispensible in treating patierts who had to undergo some sort of surgery. Physicians of that time hoped that injecting morphine directly into the blood stream would avoid the addictive effects of smoking or eating opium, but instead it proved more addictive. Codeine’s structure CH O 3 O N HO CH 3 Codeine facts: • Also a painkiller made from the poppy plant, or synthetically produced • When mixed with Aspirin or acetaminophen, pain relief will increase • Can be arrested for possession, for trafficking, producing or prescription shopping Effects of short term use of Codeine • Besides pain relief, can cause nausea and vomiting, blurred vision and loss of night vision • can lower heart rate, blood pressure and breathing, disorientation, convolutions and hallucination • Overdose could cause coma or death Effects of long term use of codeine • Depression, having difficulty concentrating or sleeping • Combining with Aspirin can cause bleeding in stomach; combining with Tylenol can cause kidney and liver damage • body stops making natural pain killins HEROIN Diacetylmorphine C21H23NO5 Types of Heroin • • • • • Heroin #1-4 Brown Heroin Black Tar Heroin Powdered Pill form Heroin is an opiate • Opiates are derived from the dried “milk” of the opium poppy • The opium poppy contains morphine and codeine • Opioids can be swallowed, or dissolved in water and injected poppy plant Chemistry of Heroin • Name: Diacetylmorphine • Alternate Chemical Names: Heroin, Diamorphine, Acetomorphine • Chemical Formula: C21H23NO5 • Molecular Weight: 369.42 • Melting Point: 243-244° Intended Short-Term Effects • Kills pain • Dialates blood vessels - produces a feeling of warmth • Surge of pleasurable sensation, known as a “rush” • Little interference with muscle coordination, sensation or intellect • Relieves stress and discomfort by creating a detachment from pain, desires and activity Side-Effects • Dry-mouth, heavy feeling in extremities, nausea, vomiting, severe itching, drowsiness • CNS depressant - cardiac and pulmonary functions are slowed • Mental functions are clouded • Reduces bowel activity - causes constipation Long-Term Side-Effects • Addiction - the positive pleasure from taking the drug is replaced by relief at taking the drug to maintain “normality” • Collapsed veins • Bacterial infections • Abscesses • Infection of heart lining and valves More Long-Term Side-Effects • Arthritis and other rheumatologic problems • Symptoms similar to the flu - aches, sweating and chills, tremors, sneezing and yawning • Liver and kidney disease • Lung complications - pneumonia and tuberculosis Heroin can be: • Swallowed • Dissolved in water and injected • Sniffed • Fumes from heated powder can be inhaled (“chasing the dragon”) Treatment for Heroin Addiction • • • • • Detoxification Methadone Programs LAAM Naloxone and Naltrexone Buprenorphine Detoxification • Objective: To relieve withdrawal symptoms while patients adjust to a drug-free state • Used in conjunction with medications • Best form of detoxification: Therapeutic community residential programs lasting at least 3-6 months residential treatment facility Methadone Programs • Not intoxicating or sedating - effects do not interfere with ordinary activities, i.e. driving • Taken orally • Suppresses narcotic withdrawal for 24-36 hours • Patients are able to perceive pain and have emotional reactions • Relieves the cravings associated with heroin addiction liquid methadone Prescription Pain Relief • Oxycodone (oxycontin) (oxycodone hydrochloride)-semisynthetic opiate derived from opioid alkaloid similar to codeine (called thebaine) • Vicodin-acetaminophen and hydrocodone • Percocet-acetaminophen and oxycodone • All are narcotics, addictive, moderate to high pain relief, CNS depressants, Pain relief medication • website Oxycodone • is a central nervous system depressant • stimulate opioid receptors in central nervous system that cause responses from respiratory depression to euphoria • tolerance and resistance can develop • patients seek to gain the euphoric effects, mitigate pain, and later avoid the withdrawal symptoms of heroin and oxycodone • comes from the alkaloid codeine found in opium. Side Effects / Overdose Side Effects: dryness of the mouth, confusion, sedation, light-headedness, respiratory depression, nausea, vomiting, headache, sweating Overdose: slow breathing, seizures, dizziness, weakness, loss of consciousness, coma, confusion, cold or clammy skin, small pupils Legal Uses • oxycodone is combined with - aspirin to make the drug Percodan - acetaminophen to make Percocet(Vicodan) - OxyContin is oxycodone along with time-release tablets. • All are prescription pain-killers used for high pain relief. What is the difference between percocet and percodan? • Answer: BOTH CONTAIN THE NARCOTIC OXYCODONE, BUT ONE HAS ASPIRIN, AND THE OTHER ACETAMINOPHEN (TYLENOL) Percodan® is the brand name for the combination of acetylsalicylic acid (aspirin) and oxycodone. Percodan® is prescribed for moderate to moderately severe pain. Oxycodone binds to the pain receptors in the brain so that the sensation of pain is reduced. Acetylsalicylic acid halts the production of prostaglandins which otherwise cause pain. It is available in tablet, capsule, and liquid form and is taken every 6 hours by mouth. Since oxycodone can be habit forming, care must be taken to follow the doctor's instructions when taking Percodan®. Do not take a larger dose, or take it more frequently, or take it for longer than the doctor has prescribed. nothing Percocet has a narcotic (oxycodone) combined with acetaminophen (Tylenol) Percodan combines the same narcotic with aspirin. Percocet contains Oxycodone and Acetominophen (Tylenol). Percodan contains Oxycodone and Aspirin Illegal Uses • Street Names: OC, OX, Oxy, Oxycotton, Blue, Hillybilly Heroin, Kicker • The time-release tablets of OxyContin, are crushed and then the powder is snorted. The powder is also water soluble and is dissolved and then injected. • The full 12-hour dose of oxycodone is taken in one hit. • Unless prescription, it is illegal to have the substances. • Oxycodone related drugs have high dependency and have been abused for close to 30 years. A sharp raise in abuse rates occurred when OxyContin was introduced in 1996. Short Term Effects • Analgesia, sedation, euphoria, feelings of relaxation, respiratory depression, cough suppression • Behavioral effects last 5 hrs. Controlled time release tablets, OxyContin, lasts 812 hrs. • When abused, the high (a sedate, euphoric feeling) lasts up to 5 hours Long Term Effects • Abuse may lead to dependence and tolerance • Chronic use leads to tolerance • The body can adapt to the presence of the drug and withdrawal symptoms will occurred if use is stopped • If taken exactly as prescribed, opioids can be used to manage pain effectively. Cocaine • Alkaloid substance and CNS stimulant pure cocoa leaves are harvested and lime water and kerosene are added; this is left to sit for 1- 4 days ammonium hydroxide is then added, and the substance is dried again, creating what is called “cocaine base” this paste is taken and sulfuric acid is added; mixture is then filtered and dried this base is dissolved into a pool of acetone and pool acid is added; over time, a white substance will form at the bottom which is filtered and dried for shipment Chemistry and Production: Extracted from the leaves of the cocoa plant (erthroxylon coca) which is located primarily in Southern America. The stimulant is formed by adding specific amounts of various chemicals to enhance potency and form the well known white powder substance which is sold illegally (in solid form cocaine is called “crack”). ~Hey! A Cocaine Timeline!~ Early Civ. 1800s The Incas in South America chewed coca leaves to increase energy, strength, and stamina. German chemist Albert Niemann identifies the South American Erythroxylon coca bush and uses it in an elixir to treat his patients. It is also used as an anesthetic for surgery and taken by many for energizing effects. Psychiatric pioneer Sigmund Freud cites cocaine in various essays as a potential cure for a myriad of ailments. Continued on Next Slide... 1900s Documents arise concerning cocaine dependency, and associating the stimulant with various psychological and physical ailments. In 1902, 92% of all the cocaine used in America could be found in tonics at one’s local pharmacy, among these was the energizing drink Coca Cola, which originally contained the stimulant. Cocaine use is restricted in 1908 from medicines entirely. -Cocaine is a central Nervous System stimulant which is ingested through the nose, smoked in its solid form, and seldom injected -Cocaine provides the user with a “rush,”or an increase in energy which causes chemicals in the brain to synthetically provide pleasure to the user -After ingested, the effects of cocaine are short term and usually in 15 - 20 minutes, disappearing after 1 hour -Once cocaine is taken, one can expect to experience an increased heart rate and breathing, dilated pupils, constricted blood vessels, increased blood pressure and the “shakes” -Over time, a frequent cocaine user may experience weight loss, ulceration of the nasal membrane, cardiac arrest (overdose), and seizures The physiological components of a human combined with the potent chemicals of cocaine produce the popular “rush” that some 3.7 million Americans today have felt; the reasons for this energizing high are as follows: -cocaine hydrochloride (white crystalline powder) alter neurotransmitters (substances in the brain which respond to nerve impulses) -cocaine specifically enhances the neurotransmitter dopamine at its receptor sites (located in the midbrain), which is thought to be involved in emotional responses -the autonomic nervous system (where nerve impulses from the central nervous system transmit self - governed impulses to muscles and glands) is elevated and this causes the “rush” associated with cocaine -While using cocaine, one may experience anxiety, paranoia, depression, loss of ambition, confusion, and overconfidence -Studies have shown that a regular cocaine user can (after a period of discomfort and withdrawal) successfully quit using the drug and redeem his health over time. For some, however, the highly addictive nature of the drug can overcome any desire to quit -Due to the fact that cocaine is an addictive substance, a user will inevitably have withdrawal symptoms when he decides to stop using; these symptoms include irritability, loss of motivation, nausea, and unclear thinking -It is very hard for some to quit using cocaine because of the “kindling effect,” where a user will become more sensitive to the drug with prolonged use, thereby intensifying one’s high with each use Due to the fact that cocaine is not only available in metropolitan cities but suburbs as well, its use is still widespread and highly illegal: -3.7 million American were reported to use cocaine in 1999; this is drastically lower than 1982’s report of 10.2 million -4.7% of eighth graders in 1999 report using cocaine at least once -the average age of a first time cocaine user is 20.6 years -over 75% of the world’s cocaine is produced in high altitude rainforests of Columbia, and smuggled over borders -cocaine is responsible for over 150,000 emergency room incidents and 3,500 deaths per year on average Chemistry Of The Drug Barbiturates contain a balance of 2,4,6-pyrimidinetrione ring structures and 5,5’-substituents.