Your doctor may want to do certain blood tests to see if the medicine is causing unwanted effects. Remember that use of naltrexone is only part of your treatment. Do not try to overcome the effects of naltrexone by taking narcotics . To do so may cause coma or death. You may be more sensitive to the effects of narcotics than you were before beginning naltrexone therapy.
Naltrexone also blocks the useful effects of narcotics.
Always use a non-narcotic medicine to treat pain, diarrhea, or cough . If you have any questions about the proper medicine to use, check with your health care professional. Naltrexone will not prevent you from becoming impaired when you drink alcohol. Do not take naltrexone in order to drive or perform other activities while under the influence of alcohol . Never share this medicine with anyone else, especially someone who is using narcotics .