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What is Naltrexone Injection?
What should I tell my health care provider before I take this medicine?
They need to know if you have any of these conditions:
bleeding problem like hemophilia
if you are still using opiate drugs (narcotics) or alcohol
kidney disease
liver disease including hepatitis
low platelet count
an unusual reaction to naltrexone, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
breast-feeding
How should this medicine be used?
The medicine will be injected into a muscle by a health care professional once every 4 weeks.
Contact your pediatrician or health care professional regarding the use of this medicine in children. Special care may be needed.
What if I miss a dose?
What drug(s) may interact with Naltrexone?
Do not take this medicine with any of the following medications:
medicines for pain like pentazocine, buprenorphine, butorphanol, nalbuphine, oxycodone, and morphine
medicines that keep your blood from clotting (anticoagulants or blood thinners, like warfarin)
Tell your prescriber or health care professional about all other medicines you are taking, including non-prescription medicines, nutritional supplements, or herbal products. Also tell your prescriber or health care professional if you are a frequent user of drinks with caffeine or alcohol, if you smoke, or if you use illegal drugs. These may affect the way your medicine works. Check with your health care professional before stopping or starting any of your medicines.
What should I watch for while taking Naltrexone?
If you are going to have surgery, tell your doctor or health care professional that you are taking this medicine.
Do 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.
Wear a medical identification bracelet or chain to say you that you take this medicine, and carry a card that lists all your medications.
You 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.
What side effects may I notice from receiving Naltrexone?
Side effects that you should report to your doctor or health care professional as soon as possible:
cough, wheezing, or difficulty breathing
depression or thoughts of suicide
severe stomach pain
unusual bleeding or bruising
unusually weak or tired
yellow color of your eyes or skin
vomiting
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
dizziness
drowsiness
irritation, pain, or redness at the injection site
loss of appetite
nausea
Where can I keep my medicine?
This does not apply. You will not be given medicine to store at home.
Important Disclaimer: The drug information provided here is for educational purposes only. It is intended to supplement, not substitute for, the diagnosis, treatment and advice of a medical professional. This drug information does not cover all possible uses, precautions, side effects and interactions. It should not be construed to indicate that this or any drug is safe for you. Consult your medical professional for guidance before using any prescription or over the counter drugs.




