how long does morphine stay in your system
Morphine can be detected in a urine test for up to 3-4 days. Blood tests for Morphine can detect the drugs for up to 12 hours. A saliva test can detect Morphine for 1-4 days. Morphine, like like many other drugs, can be detected with a hair follicle drug test for up to 90 days. Morphine is in a class of medications known as opiate (narcotic) analgesics. It works by changing the way the brain and nervous system respond to pain.