analgesics
relieve pain (acetaminophen,hydrocodone)
antacids/anti-ulcer
neutralize stomach acid (esomeprazole, calcium carbonate)
antibiotics
kill bacteria (amoxicillin, ciprofloxacin)
anticholinergics
reduce bronchospasm (ipratropium, dicyclomine)
anticoagulants
delay blood clotting (warfarin, enoxaparin, heparin)
anticonvulsants
prevent or control seizures (clonazepam, phenytoin, gabapentin)
antidepressants
relieve depression (dose-in, fluoxetine, fluoxetine, selegiline)
antidiarrheals
reduce diarrhea (bismuth subsalicylate, loperamide)
antiemetics
reduce nausea, vomiting (metoclopramide, ondansetron)
antifungals
kill fungi (fluconazole, nystatin, miconazole)
antihistamines
relieve allergies (diphenhydramine, cetirizine, loratadine)
antihypertensives
lower blood pressure (metoprolol, lisinopril, valsartan, clonidine)
anti-inflammatories
reduce inflammation (ibuprofen, celecoxib, naproxen)
antilipemics
lower cholesterol (atorvastatin, fenofibrate)
antimigraine agents
relieve migraine headaches (topiramate, sumatriptan)
anti-osteoporosis agents
improve bone density (alendronate, ibandronate, calcitonin)
antipsychotics
control psychotic symptoms (quetiapine, haloperidol, risperidone)
antipyretics
reduce fever (acetaminophen, ibuprofen, aspirin)
antispasmodics/muscle relaxants
reduce or prevent muscle spasms (cyclobenzaprine, methocarbamol)
antitussives/expectorants
control cough, promote elimination of mucus (dextromethorphan, codeine, guaifenesin)
antivirals
kill viruses (acyclovir, interferon, oseltamivir)
anxiolytics (anti-anxiety)
reduce activity (clonazepam, diazepam, lorazepam)
bronchodilators
relax airway muscles (albuterol, isoproterenol, theophylline)
central nervous system stimulants
reduce hyperactivity (methylphenidate, modafinil)
contraceptives
prevent pregnancy (medroxyprogesterone acetate, ethanol estradiol)
decongestives
relieve nasal congestion (pseudoephedrine, mometasone)
diuretics
eliminate excess fluid (furosemide, hydrochlorothiazide)
hormone replacement
stabilize hormone deficiencies (levothyroxine, insulin, desmopressin, estrogen)
laxatives, stool softeners
promote bowel movements (magnesium hydroxide, bisacodyl)
oral hypogylcemics
reduce blood glucose (metformin, acarbose, glyburide)
sedative-hypnotics
induce sleep/relaxation (zolpidem, temazepam, eszopiclone)