CLASS: MUSCARINIC ANTAGONISTS Atropine (Sal-Tropine) Treats: bradycardia, muscarinic poisoning, PUD, biliary colic. Does: Competitive blocking of Ach at muscarinic receptor sites. Increase HR, lowers secretions, relaxes bronchi. CLASS: NON-SELECTIVE BETA BLOCKERS Propranolol (Inderal) Make sure and check BP before you give it to them. AE: bradycardia, reduced cardiac output Lowers heart rate and force of contraction and the speed of impulses thru the AV node. Use for angina, HTN, dysrhythmias If you are super allergic to bees and have to carry an EpiPen, don’t use these. The Beta Blockers interfere with the action of Epinephrine CLASS: CENTRALLY ACTING ALPHA 2 AGONIST Clondine (Catapres) Decreases release of norEpi, limiting vasoconstriction. It acts centrally (on the brain). You get Xerostomia (dry mouth) very badly on this shiz CLASS: SYMPATHOMIMETICS Neo-synephrine (phenylephrine) MOA/Use: Reduce Nasal Congestion CLASS: ANDRENERGIC AGONIST Epinephrine MOA/Use: direct binding to mimic the CNS (stimulation) AE: Rebound congestion, CNS stimulation. It’s basically cocaine. TE: Vasoconstriction (increase BP) and bronchodilates. CLASS: ANTISEIZURES Dilantin (Phenytoin) Small therapeutic range. Treat partial and tonic-clonic seizures and selected cardiac dysrythmias If you use more than 5 days in a row your nose could become dependent on it and not work properly, lots of congestion. AE: HTN, necrosis, tachycardia, tremor, angina TOC for anaphylactic reactions (EpiPen) The range can vary widely. Read the label carefully! AE: Gingival hyperplasia, devil babies (teratogen), ataxia, sedation, rash CLASS: OPIOD AGONIST/ANTAGONIST Morphine (Strong) & Codine (less strong) MOA/Use: Mimics action of AE: Respiratory depressant! Most endogenous opioid receptors to common cause of OD death! Also produce analgesia. CNS depressant! constipation, Orthostatic hypotension, etc. ADME: Time frame varies depending on the route used (po, IV, etc.) Codine is a very strong cough suppressant. Raised cough threshold in brain… Precautions: people who can’t breathe well while not on it! Liver disease, pregnancy (cause it crosses placenta) Narcan (naloxone) Competes for opiate site and block effects of opioid agonist. Use for overdose of morphine!! Demerol (meperidine) Interacts w/ several drugs (esp MAOI’s). Old people can’t handle it well. Avoid use past 48 hrs and don’t exceed 600mg/24hr CLASS: ANTIDEPRESSANTS Goal is to make people feel better/functional Suicidal thoughts may increase with Rx 5 groups o Tricyclic Antidepressants (TCA’s) Blocks reuptake of NE (norepinephrine) and serotonin o SSRI Antidepressants Blocks reuptake of serotonin o MAOI Antidepressants Use when others don’t work cause it causes lots of stimulation o Atypical Antidepressants They don’t really know how they work, but they do… CLASS: BARBITURATES No ceiling limits of CNS depression b/c it mimics GABA! Can readily cause death! CLASS: BENZODIAZEPINES Depress neuronal function by using the GABA you already have. It’s limited because GABA is finite (only so much of it) which makes it safer Can cause amnesia (which is good b/c they don’t remember the traumatic procedure they just went thru) CLASS: DIURETICS Furosemide (Lasix) Monitor K levels for hypokalcemia (s/s are N/V). Ototoxic. This is a super strong drug so only use when you need something super strong. CLASS: ACE INHIBITORS Ramipril (Altace) Reduces angiotensin II and increases bradykinin to dilate vessels. Used for diabetic nephropathy esp. Also, if you use these after an MI you have a better chance of not dying… An AE is a dry hacking cough (which is the main reason people stop taking them). Also 1st dose hypotension CLASS: ARB’S Valsartan (Diovan) Blocks action of angiotensin II. Useful in prophylactic migraine prevention CLASS: CALCIUM CHANNEL BLOCKERS Verapamil Ca helps with contraction of heart. Stop the calcium, stop the contraction. Lowers the force with which the heart can contract and slows conduction thru the nodes. CLASS: ANTICOAGULANTS Warfarin (Coumadin) Antagonist of Vit K. Blocks shit needed for clotting to happen. Used for cardiac dysrhythmias. Your hearts in A-fib and not giving itself time to fill up before it pumps again. This slows it down so it can fill up! Can cause gingival hyperplasia (your gums go crazy and overgrow your teeth) Constipation can be severe in the elderly Risk for bleeding. And don’t eat with any green, leafy vegetables either… Use Vit K for overdose VITAMINS OR WHATEVER… B12 (Cyanocobalmin) Lack of this causes megaloblastic anemia. Provides B12 for synthesis of DNA to help anemia and problems from deficiency. Don’t give IV or you will have anaphylaxis Iron (Ferrous Sulfate, Feosol) Restores Iron for production of hemoglobin to prevent/relieve symptoms of iron deficiency anemia. AE: constipation is extreme in old people No antacids 2 hours before or 4 hours after taking. Don’t take with milk, cereal, fiber, tea, etc... CLASS: INSULINS Humalog (lispro)- can mix with NPH, right before and after a meal. Short duration rapid acting (sdra) NovoLog (aspart)- can mix with NPH, 5-10 mins before meal (sdra) Novolin R (regular insulin)- 30-60 mins before a meal. Short duration slower acting Lantus (glargine)- long (24 hour) duration. CANT MIX NPH (Neutral protamin Hagedorn)- intermediate duration Glucagon- exact opposite of insulin. Give to people in hypoglycemic shock. Produced in alpha cells (not beta cells like insulin) in the pancreas CLASS: ANTIHISTAMINES Diphenhydramine (Benadryl) MOA/Use: blocks histaminic receptors to reduce TE: Constricts vessels, shrinks capillaries (edema AE: Excess sedation. Don’t take in 3rd trimester. histamine response to stuff (allergic reactions) goes down), CNS (sedation). Anticholinergic effects (see last page) CLASS: COX INHIBITORS Aspirin MOA/Use: binds to platelet (for life of platelet) and makes it not sticky, can’t group together and form a clot. Cox 1 & 2 inhibitor. Analgesic, anti-inflammatory. Helps prevent heart attack, stroke. Makes blood flow more smoothly. AE: Occult (hidden) blood in poo. Salicylims (overdose of aspirin) causes ringing in ears. Also cardioprotective! Celecoxib (Celebrex) Benefit= lower GI bleeding risk than others! Not cardioprotective. Acetaminophen (Tylenol) Pain relief, not anti-inflammatory! It’s a really good pain reliever but doesn’t give you the mental cloudiness that narcotics do. Don’t use with blood thinners because celebrex can cause bleeding… Hepatotoxic. Use mucomyst as the antidote for Tylenol, has to be within 24 hours. But you won’t see overdose s/s until it’s usually too late to use mucomyst. CLASS: GLUCOCORTICOIDS Metabolic effects o They want glucose and steal it if they have to. You get a chipmunk face from redistribution of fat Cardiovascular effects o Can make your WBC count to go up They make you feel absolutely wonderful while they are doing all these bad things to you. Sweet Poison. Fucks up the body’s ability to have an immune response. o Don’t give people on these a vaccine (cause the body can’t fight even a crappy dead virus, it won’t do anything. It’s a wasted vaccine) Used for inflammatory problems (RA, lupus, whatever) Adverse effects o They raise your blood sugar. If it’s that way long enough, you can become diabetic. Growth retardation in children CLASS: BIPHOSPHONATES Alendronate (Fosamax) Goes into bone and inhibits reabsportion by decreasing osteoclast activity. Half life may be weeks -180 years. They don’t fucking know… NEVER TAKE WITH FOOD! ONLY WATER! Sit upright for a while after you take it… CLASS: EXPECTORANTS Guaifenesin (Muscinex) MOA/Use: increases flow of respiratory tract secretions CLASS: PPI’S Omeprazole (Prilosec) MOA/Use: suppress secretion of gastric acid. Irreversible days to weeks after stopping drug AE: HA, diarrhea, N/V ADME: Very important when you take it! Give 30 mins before meal, once a day. Famotidine (Pepsid) For heartburn, acid indigestion, sour stomach. It doesn’t do a lot of the things that Tagamet does (antiandrogenic effects) Tagamet (cimetadine) DOC for tummy ulcers. Promotes healing thru acid reduction AE: gynecomastia (boobies in men), reduced libido, impotence CLASS: BULK-FORMING LAXATIVES You can’t absorb them. They swell in your insides to form a gel like solution that softens your poo, making it easier to poo out! CLASS: STIMULANT LAXATIVES Stimulate gut motility, increase secretion of water and ions into the intestine and reduce water and electrolyte absorption. Keeps the water in your poo and makes your gut move quickly to get it out of there. Bowel rupture can occur! CLASS: CEPHALOSPORINS Similar to penicillins Bacteriocidal: disrupt bacteria cell wall synthesis Broad Spectrum and most widely used of all antibiotics o 4 generations, each progressively more and more specific CLASS: MONOBACTAMS Vancomycin MOA/Use: disrupts cell wall. Used in severe ADME: Poor oral absorption AE: Ototoxic! infection like MRSA and C. Diff. The whole if you Red Man Syndrome: you turn red with rapid use it you lose it philosophy infusion CLASS: TETRACYCLINES Tetracycline (Sumycin) MOA/Use: inhibits protein synthesis. Broad spectrum used in rickets, Chlamydia, acne ADME: lowered absorption with Ca, Fe, and Mg laxatives, antacids, and milk AE: Hepatotoxic, renal toxicity (take with lots of water). Photosensitivity Chloramphenicol MOA/Use: Broad spectrum Antibiotic, inhibits protein synthesis AE: Reversible bone marrow depression resulting in aplastic anemia Only for life-threatening infections for which safer drugs are ineffective or contraindicated! ADME: typically IV cause it’s not absorbed p.o. Needs peak/trough AE: Ototoxic! It’s nephrotoxic if the total cumulative dose is too high. Causes acute tubular necrosis CLASS: AMINOGLYCOCIDES Gentamicin (Garamycin) MOA/Use: narrow spectrum for gram negative stuff CLASS: ANTIFUNGALS Amphotericin-B (Fungizone) MOA/Use: Broad spectrum. Binds to ergosterol on fungal wall and increases permeability. Fungocidal. DOC for the super bad guys that are going to kill you if you don’t get this med… ADME: Highly toxic. It breaks down the fungal ergosterol. You have sterols in you. Hence it breaks down the bugs sterols and your sterols too! Bad news for you… Griseofulvin (Grifulvin V) MOA/Use: for superficial mycoses only. Inhibits fungal mitosis. You take it and it goes to your keratin. Fungus likes keratin. It eats the keratin with the med in it and dies… CLASS: ANTIVIRALS Acyclovir MOA/Use: Suppresses synthesis of viral DNA, but does not cure it. (No cure for virus) AE: headache, rash. The med is liver intensive, so don’t use in people with fucked up livers AE: when IV can cause reversible nephrotoxicity so you infuse slowly and keep them hydrated Randoms: If you are on it long enough, you develop a resistance to it. Just b/c your partner is on it doesn’t mean you won’t get the herp. Only topically or slow IV Interferon A (Peg-Intron) MOA/Use: Blocks entry of virus. Tx of chronic Hep B and C (but the first choice is to vaccinate!) AE: flu like symptoms and depression. Makes you feel real, real bad… Ribavarin (Rebetol) MOA/Use: not really clear, goes along with Interferon. Therapy is long, 24-48 wks Teratogenic (Category X) You have to be on 2 forms of BC! Devil babies! OTHER NURSING RESPONSIBILITIES 6 Rights (drug, time, dose, patient, route, documentation) As a nurse, it’s your job to make sure everything is ok both before you give the med (checking BP) and after giving (reevaluating pain level after 30 mins) Not only do you make sure you didn’t just kill the patient with the med, but you get a firsthand look at the therapeutic effectiveness of the drug. If his GERD medicine doesn’t do shit to help his GERD, it’s your job to inform the Doctor. Also, you have to know the interactions, adverse effects, etc. If you aren’t sure you should give the med, then don’t friggin give it. If it’s wrong, call the pharmacy to double check the order. If they say it’s all good and you still don’t think it looks right, call the dr. If you don’t and the guy dies, it’s your ass. You get to make PRN decisions. Whoo hoo. You are also basically responsible for teaching the client about his meds. You get to tell him why he gets it, how to take it, etc. DRUG REGULATIONS 1906 Federal Pure Food & Drug Act 1938 Food, Drug & Cosmetic Act (FDCA) – FDA established o Looks at results of drug before it can go on the market. You have to have testing and all that. 1962 Harris-Kefauver Amendments to FDCA o Drug makers had to prove their shit worked before it was approved for use. 1970 Controlled Substance Act o Scheduled Classes 1-5 (1 being super addictive, 5 being the least) 1997 Food & Drug Administration Modernization Act o Changed FDA regulations o Put HIV and cancer drugs on the market quicker, said you had to be notified 6 mo prior to your favorite drug being taken off the market, etc. PHARMACOKINETICS “drug motion” ADME fits in here… It’s what happens to the pill once you swallow it (where it’s broken down, where parts of it go after that, etc.) PHARMACODYNAMICS What drugs do to the body and how they do it Like, how when you take morphine it makes you feel good because it’s working on receptors and what not… DRUG INTERACTIONS Consequences of D/D Interactions o Intended vs. unintended o Good vs. bad o Intensification (Potentiative, increasing) o Reduction / Diminished effects (Inhibitory) o Can create entirely new or unique effects. INDIVIDUAL DRUG RESPONSES Tylenol doesn’t exactly affect you and Jimbo the same way. It’s because of o Body weight and composition o Age o Gender (women can’t drink as much alcohol as men can) o Race/Genetics o Diet DRUG REACTIONS IN ELDERLY Watch out for them polypharmacy bitches… Their organs don’t work right, they might have co-morbidities, they may be forgetful and not take stuff, they may be on a fixed income and not have enough $$, etc. MEDICATION ERRORS Any preventable even that may cause or lead to inappropriate medication use or patient harm while the medication is in the control of the healthcare professional, patient, or consumer Most common cause is human error (i.e. poor communication, name confusion, improper math and dose calculation, etc.) If something in the process goes wrong, (either with the dr writing the order, the pharmacy filling the order, whatever) and you give the med and he dies, it’s your ass. It’s your responsibility to make sure everything is right before you give the med! If you make a mistake, your first priority is to stay with the patient and make sure they’re ok. Don’t go find a dr, don’t fill out an incident report, nothing. Don’t leave their side until you know they are going to be ok! OTHER THINGS I FELT LIKE ADDING *You want drugs to be effective, selective, and safe. Effectiveness is the most important property a drug can have, there is no such thing as a “safe” drug, and a completely selective drug is one that only does what you want it to (i.e. no side/adverse effects). Drug- any chemical that can affect living processes Pharmacology- the study of drugs and their interactions with living systems ADME- Absorption, distribution, metabolism, and excretion (all part of pharmacokinetics) Maximal efficacy- the max effect a drug can produce. Potency- amount of drug required to produce the desired effect Adverse Drug Reactions – any noxious, unintended, and undesired effect that occurs at normal doses Contraindication- something you already have that you know will cause problems if you take it. Only use for extreme circumstances! Precaution- something you already have that increases your risk of having a shitty reaction to a drug, but it’s not really life threatening Drug abuse- using a drug in a fashion inconsistent with medical or social norms Addiction- you have to have it! You will not eat and steal from your baby daddy to get your shiz… Cross-tolerance- if you take a lot of hydrocodone the morphine might not do you much good. If you’re used to a drug, you might be used to its drug cousin Psychological dependence- mentally addicted to chocolate or whatever Physical dependence- your body freakin needs it! Cross-dependence- if you are dependent on a drug, you are very likely to become addicted to its drug cousin Anticholinergic Effects Salivary glands- decreased secretion Sweat glands- decreased secretion Bronchial glands- decreased secretion Heart- Increased rate Eye- mydriasis, blurred vision Urinary tract- interference with voiding Intestine- decreased tone and motility Lung- dilation of bronchi High doses= stomach and decreased acid secretion