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Medications

Naltrexone Oral Tablet

Brands: ReVia

Uses

This medicine is used for the following purposes:

  • drug addiction
  • alcohol dependence

Instructions

Swallow with a full glass (8 oz) of water unless your doctor gives you different instructions.

You may take with food to prevent stomach upset.

It is very important that you take the medicine at about the same time every day. It will work best if you do this.

Store at room temperature away from heat, light, and moisture. Do not keep in the bathroom.

It is important that you keep taking each dose of this medicine on time even if you are feeling well.

If you forget to take a dose on time, take it as soon as you remember. If it is almost time for the next dose, do not take the missed dose. Return to your normal dosing schedule. Do not take 2 doses of this medicine at one time.

Drug interactions can change how medicines work or increase risk for side effects. Tell your health care providers about all medicines taken. Include prescription and over-the-counter medicines, vitamins, and herbal medicines. Speak with your doctor or pharmacist before starting or stopping any medicine.

Do not suddenly stop taking this medicine. Check with your doctor before stopping.

If you need to stop this medicine, your doctor may wish to gradually reduce the dosage before stopping.

Keep all appointments for medical exams and tests while on this medicine.

Cautions

Tell your doctor and pharmacist if you ever had an allergic reaction to a medicine.

This medicine may cause you to experience some withdrawal symptoms from your pain medication. Tell your doctor right away if you have unusual sweating, chills, stomach pain, diarrhea, yawning or irritability.

Some patients taking this medicine have experienced serious side effects. Please speak with your doctor to understand the risks and benefits associated with this medicine.

This medicine is associated with a rare, but serious problem of the liver. Speak to your doctor about the early signs of liver problems and the benefits and risks of using this medicine.

Do not use the medication any more than instructed.

This medicine may cause dizziness or fainting, especially after exercising or in hot weather. Be very careful when standing or sitting up quickly.

If possible, avoid using with marijuana or other medicines that can cause dizziness or drowsiness. These include allergy/cold products, muscle relaxers, sleep aids, and pain relievers.

Your ability to stay alert or to react quickly may be impaired by this medicine. Do not drive or operate machinery until you know how this medicine will affect you.

Do not drink beverages with alcohol while on this medicine.

Call the doctor if there are any signs of confusion or unusual changes in behavior.

Tell the doctor or pharmacist if you are pregnant, planning to be pregnant, or breastfeeding.

Contact your doctor immediately if you experience any swelling of your hands, face, lips, eyes, throat or tongue.

Always carry an ID card or wear a medical alert bracelet indicating your medical condition.

Do not share this medicine with anyone who has not been prescribed this medicine.

Always refill this medicine before it runs out.

Side Effects

The following is a list of some common side effects from this medicine. Please speak with your doctor about what you should do if you experience these or other side effects.

  • agitated feeling or trouble sleeping
  • dizziness
  • lack of energy and tiredness
  • headaches
  • nausea
  • restlessness

Call your doctor or get medical help right away if you notice any of these more serious side effects:

  • abdominal cramps
  • severe or persistent abdominal pain
  • decreased awareness or responsiveness
  • bone pain
  • confusion
  • diarrhea
  • hallucinations (unusual thoughts, seeing or hearing things that are not real)
  • pain in the joints
  • signs of liver damage (such as yellowing of eye or skin, dark urine, or unusual tiredness)
  • muscle aches, spasms or abnormal movements
  • nervousness
  • runny nose
  • shortness of breath
  • severe or persistent vomiting

A few people may have an allergic reaction to this medicine. Symptoms can include difficulty breathing, skin rash, itching, swelling, or severe dizziness. If you notice any of these symptoms, seek medical help quickly.

Extra

Please speak with your doctor, nurse, or pharmacist if you have any questions about this medicine.

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IMPORTANT NOTE: This document tells you briefly how to take your medicine, but it does not tell you all there is to know about it. Your doctor or pharmacist may give you other documents about your medicine. Please talk to them if you have any questions. Always follow their advice. There is a more complete description of this medicine available in English. Scan this code on your smartphone or tablet or use the web address below. You can also ask your pharmacist for a printout. If you have any questions, please ask your pharmacist. The display and use of this drug information is subject to Terms of Use. Copyright(c) 2022 First Databank, Inc.


© 2000-2022 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.