CHAPTER 6 APPENDIX 3 TRANSLATION OF THE PARAGRAPH LOCATED ON P. 146. Side effects Doctors prescribe medications for the purpose of curing diseases or relieve symptoms. Many medications also have side effects. Sometimes the side effects are unpleasant but disappear with time or by reducing the dosage. Side effects include nausea, dizziness, indigestion, vomit, constipation, diarrhea, dry mouth, headache, insomnia, irritability, and drowsiness. Many times side effects are benign but some people have an allergic reaction. An allergic reaction occurs when the immune system responds to the medication. The most severe allergic reaction is anaphylaxis. The symptoms of an allergic reaction include swelling, itching, red spots, swelling of the throat, asthma, irregular heartbeat and/or difficulty breathing. Difficulty breathing is always a medical emergency. You must call the doctor or a hospital immediately if you have an allergic reaction after taking a medication.