A white crystalline alkaloid and opium derivative used as a narcotic analgesic and also commonly in drug addiction. Morphine depresses respiration and the cough reflex, induces sleep, and may cause vomiting and constipation. It is valuable in heart failure and as a premedication for anesthetics; its properties are particularly valuable in terminal malignant disease. Addiction and withdrawal symptoms are common.
Related category HEALTH AND DISEASE
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