Highlights for naltrexone
naltrexone Side Effects
Side effects that you should report to your doctor or health care professional as soon as possible:\n-allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue\n-breathing problems\n-dark urine\n-depressed mood\n-general ill feeling or flu-like symptoms\n-injection site problems: blisters, dark scab, hard area, lumps, intense pain, open wound, or large area of swelling\n-light-colored stools\n-right upper belly pain\n-suicidal thoughts or other mood changes\n-unusual bleeding or bruising\n-unusually weak or tired\n-yellowing of the eyes or skin\n-vomiting\n \nSide effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):\n-dizziness\n-headache\n-irritation, sting, or redness where injected right after injection\n-loss of appetite\n-nausea\n-tiredness
naltrexone May Interact with Other Medications
Do not take this medicine with any of the following medications:\n-medicines for pain like pentazocine, buprenorphine, butorphanol, nalbuphine, oxycodone, and morphine
How to Use naltrexone
The medicine is for injection into a muscle. It is given by a health care professional in a hospital or clinic setting.\n \nTalk to your pediatrician regarding the use of this medicine in children. Special care may be needed.\n \nA special MedGuide will be given to you by the pharmacist with each prescription and refill. Be sure to read this information carefully each time.
They need to know if you have any of these conditions:\n-bleeding problem like hemophilia\n-if you frequently drink alcohol containing drinks\n-kidney disease\n-liver disease\n-low platelet count\n-take medicines that treat or prevent blood clots\n-take narcotic medicines for pain or addiction\n-use illegal or street drugs\n-an unusual or allergic reaction to naltrexone, other medicines, carboxymethylcellulose, foods, dyes, or preservatives\n-pregnant or trying to get pregnant\n-breast-feeding
It is important not to miss your dose. Call your doctor or health care professional if you are unable to keep an appointment.
Your condition will be monitored carefully while you are receiving this medicine.\n \nVisit your doctor or health care professional regularly. It is important to attend any counseling or support groups that your doctor or health care professional recommends. Attending these sessions while you are taking this medicine will help you overcome your dependence on alcohol or narcotics (opioids). Never try to overcome the effects of the medicine by taking large amounts of narcotics (opioids) because this can cause severe problems including death. Also, you may be more sensitive to lower doses of opioids after you stop taking this medicine.\n \nIf you are going to have surgery, tell your doctor or health care professional that you are taking this medicine.\n \nDo not treat yourself for coughs, colds, pain, or diarrhea. Ask your doctor or health care professional for advice. Some of the ingredients may interact with this medicine and cause side effects.\n \nWear a medical ID bracelet or chain, and carry a card that describes your disease and details of your medicine and dosage times.\n \nYou may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.
This drug is given in a hospital or clinic and will not be stored at home.
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Last Updated: October 13, 2010