Hi my name is Debbie I'm an other woman in search for answers to my questions, Will you be able to help with this information. I'm on morphine sulf er 15 mg tablets and take them 3 times a day, can you tell me how long it lasts in your system?,,Also is there a drug test that can be taken to see if its in your system?, If so can you please help me to get answers to my questions correctly due to the fact i have been on line for hours searching for these answers...PLEASE HELP ME,,,,Thank you,,Debbie