How long does morphine sulfate 30 mg stay in urine?

If the morphine dose is 200 mg, then the tablet must be a time-released formulation of morphine such as Duramorph®, Kadian®, MS-Contin®, OramorphSR® and about four other brands of sustained-release morphine sulfate available in the US. This matters because the blood morphine concentration will not begin to decrease until the pill stops releasing morphine into the person's blood.

For most people who aren't elderly, a single morphine dose will not be detected in the urine after roughly 72 hours. It is necessary to add 24 hours to that if a single dose of a sustained-release formulation is taken, thus a single dose of 200 mg of morphine in a sustained-release tablet would probably not be detected in the urine after 96 hours. However, if one uses the medication every day, or has used it for more than approximately three days in a row, then that person's urine will most likely be "clean" after about 120 hours, or five whole days.