Important information about MS Contin You may not be able to take this medicine unless you are already being treated with a similar opioid pain medicine and your body is tolerant to it. Talk with your doctor if you are not sure you are opioid-tolerant. MS Contin may be habit-forming and should be used only by the person it was prescribed for. MS Contin should never be given to another person, especially someone who has a history of drug abuse or addiction. Keep the medication in a secure place where others cannot get to it. Do not drink alcohol while you are using MS Contin. Dangerous side effects or death can occur when alcohol is combined with MS Contin. Check your food and medicine labels to be sure these products do not contain alcohol. Never take more than your prescribed dose of MS Contin. Tell your doctor if the medicine seems to stop working as well in relieving your pain. Do not stop taking MS Contin suddenly, or you could have unpleasant withdrawal symptoms. Talk to your doctor about how to avoid withdrawal symptoms when stopping the medication