- Analgesics(1337)
- Anesthetics(827)
- Anti-Addiction Agents(301)
- Anti-inflammatory Agents(2450)
- Antibacterials(6470)
- Anticonvulsants(1801)
- Antidementia Agents(1495)
- Antidepressants(3594)
- Antiemetics(876)
- Antifungals(2035)
- Antipsychotics(157)
- Antigout Agents(316)
- Antimigraine Agents(912)
- Antineoplastics(28708)
- Antiparasitics(833)
- Antiparkinson Agents(1857)
- Antivirals(7283)
- Anxiolytics(543)
- Blood Glucose Regulators(5731)
- Blood Products(4015)
- Cardiovascular Agents(7684)
- CNS Agents(1342)
- Dental & Oral Agents(229)
- Dermatological Agents(1622)
- Electrolytes(494)
- Gastrointestinal Agents(3321)
- Genetic/Enzyme Disorder(555)
- Genitourinary Agents(2413)
- Immunological Agents(2631)
- Metabolic Bone Disease(784)
- Ophthalmic Agents(1978)
- Respiratory Tract(4663)
- Skeletal Muscle Relaxants(24)
- Sleep Disorder Agents(1825)