What are the possible side effects of narcotics?
Central Nervous System: Sedation, drowsiness, mental clouding, lethargy, impairment of mental and physical performance, anxiety, fear, dysphoria, dizziness, psychic dependence, depression or other mood changes. Nervous System: Weakness, headache, agitation, tremor, uncoordinated muscle movements, seizure, paresthesia, alterations of mood (nervousness, apprehension, depression, floating feelings), dreams, transient hallucination and disorientation, visual disturbances, insomnia, nightmares or unusual dreams, increased intracranial pressure. Special Senses: Blurred or double vision, nystagmus, diplopia, miosis, ringing or buzzing in the ears. Gastrointestinal System: Dry mouth, biliary tract spasm, laryngospasm, anorexia, loss of appetite, diarrhea, cramps, taste alterations, nausea and vomiting (more frequent in ambulatory than in recumbent patients). The antiemetic phenothiazines are useful in suppressing these effects; however, some phenothiazine derivatives seem to be antianalgesic a
