naltrexone hcl - oral (cont.)
PRECAUTIONS: Before taking naltrexone, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.Before using this medication, tell your doctor or pharmacist your medical history, especially of: current or recent use (in the last 7 to 14 days) of any type of opioid drug (such as morphine, methadone, buprenorphine), kidney disease, liver disease.You should carry or wear medical identification stating that you are taking this drug so that appropriate treatment can be given in a medical emergency.This drug may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Avoid alcoholic beverages.After stopping naltrexone treatment, you may be more sensitive to lower doses of opioids, increasing your risk of possibly life-threatening side effects from the narcotic (e.g., decreased breathing, loss of consciousness).This medication blocks the effects of opiate drugs (including heroin) and similar drugs (opioids). However, large doses of heroin or narcotics can overcome this block. Trying to overcome this block is very dangerous and may cause serious injury, loss of consciousness, and death. Make sure you completely understand and accept the risks and benefits of using this medication. Follow your doctor's instructions closely.Before having surgery or any medical treatment, tell your doctor or dentist that you are taking this medication.During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.It is not known whether this drug passes into breast milk. Consult your doctor before breast-feeding.
DRUG INTERACTIONS: Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.Some products that may interact with this drug include: cough medication (e.g., dextromethorphan), disulfiram, diarrhea medication (e.g., diphenoxylate), narcotic medication (e.g., codeine, hydrocodone, propoxyphene), thioridazine.This medication may interfere with certain laboratory tests (including drug tests), possibly causing false test results. Make sure laboratory personnel and all your doctors know you use this drug.
Medically Reviewed by a Doctor on 4/16/2014
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