| Term | Definition |
| cef- | Cephalosporins (antibiotics) ex. cefadroxil, cefaclor |
| ceph- | Cephalosporins (antibiotics) ex. cephalexin, cephapirin |
| rifa- | Antituberculars ex. rifamate, rifampin |
| sulf- | Sulfonamides (antibiotics) ex. sulfadiazine, sulfamethazole |
| -acetone | Potassium- sparing diuretics ex. aldactone, spironolactone |
| -ane | General anesthetics ex. cyclohexane, ethane, flourane |
| -ase | Thrombolytics (clot-busters) ex eminase, retavase |
| -azole | Antifungals ex. butoconazole, econazole |
| -azosin | Alpha blockers (adrenergic antagonist) ex. doxazosin, prazosin |
| -barbital | Barbiturates (sedative hypnotics) ex. amobarbital, pentobarbital |
| -caine | Local anesthetics ex. bupivacaine, cocaine |
| -calci | Calcium & vitamin D supplements ex. calciferol, calcitrol |
| -ciclovir | Antivirals ex. famiclovir, ganiclovir |
| -curium | Neuromuscular blockers |
| -curonium | Neuromuscular blockers ex. pancuronim, pipercuronium |
| -cycline | Tertracyclines (antibiotics) ex. demeclocycline, doxycycline |
| -cyclovir | Antivirals ex. acyclovir, valacyclovir |
| -dipine | Calcium channel blockers ex. amlodipine, felodipine |
| -dronate | Biphosphonates ex. alendronate, etidronate |
| -ergot- | Ergotamines (anti-migrane) ex. ergotamine, dihydroxyergotamine |
| -floxacin | Flouroquinolones (antibiotics) ex. ciproflaxin, gatifloxacin |
| -lam | Benzodiazepines (anxiolytics) ex. alprazolam, midazolam |
| -lol | Beta blockers (adrenic antagonists) ex. atenolol, propanolol |
| -lone | Corticosteroids (anti-inflammatory) ex. methylprednisolone, prednisolone |
| -micin | Aminoglycosides (antibiotics) ex. gentamicin |
| -mycin | Aminoglycosides/Macrolides (antibiotics) ex. erythromycin, tobramycin |
| -navir | HIV/AIDS antivirals ex. aprenavir, indinavir |
| -pam | Benzodiazepines (anxiolytics) ex. diazepam, lorazepam |
| -prazole | Proton pump inhibitors (anti-ulcer) ex. lansoprazole, omeprazole |
| -pril | ACE inhibitors (antihypertensives) ex. benazepril, captopril |
| -profen | NSAIDS (anti-inflammatory) ex. fenoprofen, ibuprofen |
| -quine | Antiparasitics ex. chlroquine, melfloquine |
| -sartan | Angiotensin-II receptor antagonists ex. losartan, valsartan |
| -setron | 5-HT receptor antagonists (antiemetics) dolansetron
3 |
| -sone | Corticosteroids (anti-inflammatory) ex/ cortisone, prednisone |
| -stigmine | Cholinergics ex. neostigmine, physotigmine |
| -stine | Antineoplastics (anti-tumor) ex. lomustine, vinblastine |
| -terol | Bronchodilators ex. albuterol, bitolterol |
| -thiazide | Potassium-losing diuretics ex. benzthiazide, hydrochlorothiazide |
| -tidine | H receptor antagonist (anti-ulcer) ex. cimetidine, famotidine
2 |
| -triptan | Anti-migraines ex. naratriptan, rizatriptan |
| -triptyline | Tricyclics (antidepressants) ex. amitriptyline, nortriptyline |
| -vastatin | Antilipemics (anti-cholesterol) ex. atorvastatin, lovastatin |
| -vir | Antivirals ex. abacivir, zanamivir |
| -vudine | HIV/AIDS antivirals ex. lamivudine, stavudine |
| -zine | Phenothizines (antipyschotics, antiemetics) ex. chlorpromazine, perphenazine |
| -zoline | Nasal decongestants ex. oxymetazoline, zylometazoline |
