📘 Introduction. Centrak Nervous System Stimulants. Antidepressants and Antinxienty Agent (Anxiolytic). Antipsychotic Agents and Hallucinogens. General Anaestetics. Hypnotics and Sedatives. Skeletal Muscle Relaxants. Tranquilizing Agents. Anticonvulsant Drugs. Analgesics (Narcotcs). Anpyertic Analgesics. Nonsteroidal Anti- Inflammatory Agents. Adrenergic Agents. Adrenergic Blocking Agents. Cardiovascular Agents. Histamines & Antihistaminic Agents. antitussives & Expectorants. Coagulants and Anticoagulants