- drugs
- anti infective agents
- anti inflammatory agents
- antidotes
- antiemetics
- antihistaminics
- antilipemic agents
- antimetabolites
- antineoplastic agents
- antitussive agents
- aphrodisiacs
- appetite depressants
- biological factors
- biological products
- cardiovascular agents
- dermatologic agents
- emetics
- gastrointestinal agents
- hematologic agents
- hypoglycemic agents
- immunologic factors
- immunosuppressive agents
- irritants
- nervous system agents
- noxae
- radiation protective agents
- radiation sensitizing agents
- renal agents
- reproductive control agents