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  • Immunoassay reagents intended to perform qualitative analyses on a body fluid sample (typically urine) to determine codeine in a short period of time, typically several minutes. Codeine, an alkaloid from opium or prepared from morphine with some analgesic properties because about 10% is converted into morphine, has therapeutic use as analgesic and to relieve or prevent cough. Codeine can cause drug dependence and therefore has the potential to be abused. Following codeine ingestion, both codeine and morphine can be detected in the urine. Codeine can be also detected after heroin use because codeine is a common contaminant of heroin. Reagents for codeine determination in urine samples can detect its use for one to four days after use. The consumption of foods that include poppy seeds, such as cakes, muffins, and bagels, can result in urine excretion of codeine.
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