Morphine,the main ingredient of opiates and heroin,could inhibit central nervous system.the principle metabolites of opiates are morphine,morphine-3-glucuroride,normorphine and codeine with a half-life of about 3 hours.Heroin is quickly metabolized to morphine.Thus,morphine and morphine glucuronide might both found in the urine of a person who has taken only herion.The body also changes codeine to morphine.Thus,the presenceofmorphine(or the metabolite,morphine glucuronide)in the urine indicastes heroin,morphine and/or codeine use.It can detect in urin after taken for 2-48hours.

Aittone MOR test is a competitive immunoassay with high sensitivity and specificity qualitative detection of morphine in urine.