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Opiates (OPI 300 and 2000)

“Opiates” refers to any drug that is derived from the opium poppy, including the natural products morphine and codeine, and semi-synthetic drugs such as heroin. The term “opioid” is more general, referring to any drug that acts on the opioid receptor. Opioid analgesics comprise a large group of substances that control pain by depressing the central nervous system. Large doses of morphine can produce higher tolerance levels, physiological dependency in users, and may lead to substance abuse. Morphine is excreted unmetabolized, and is also the major metabolic product of codeine and heroin. Morphine is detectable in the urine for several days after an opiate dose.