Generic Name: Alvimopan (al VI moe pan)
Brand Name: Entereg
Medically reviewed by Drugs.com. Last updated on May 16, 2020.
- During long-term use, a higher number of heart attacks happened in people taking Entereg (alvimopan) than in people who were not taking it. The cause of this is not known. In short-term use, a higher risk of heart attack has not been seen. Talk with your doctor.
Uses of Entereg:
- It is used to help bowel function after surgery.
What do I need to tell my doctor BEFORE I take Entereg?
- If you are allergic to Entereg (alvimopan); any part of Entereg (alvimopan); or any other drugs, foods, or substances. Tell your doctor about the allergy and what signs you had.
- If you have been taking a pain drug for more than 7 days in a row.
- If you have any of these health problems: Kidney disease or liver disease.
- If you have a bowel block.
- If you will be having pancreas surgery, stomach surgery, or surgery for a whole bowel block.
This is not a list of all drugs or health problems that interact with Entereg (alvimopan).
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take Entereg (alvimopan) with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
What are some things I need to know or do while I take Entereg?
- Tell all of your health care providers that you take Entereg (alvimopan). This includes your doctors, nurses, pharmacists, and dentists.
- The chance of side effects like diarrhea, stomach pain, or stomach cramps may be higher in Japanese people.
- Tell your doctor if you are pregnant, plan on getting pregnant, or are breast-feeding. You will need to talk about the benefits and risks to you and the baby.
How is this medicine (Entereg) best taken?
Use Entereg (alvimopan) as ordered by your doctor. Read all information given to you. Follow all instructions closely.
- Take with or without food.
What do I do if I miss a dose?
- Call your doctor to find out what to do.
What are some side effects that I need to call my doctor about right away?
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Chest pain or pressure or a fast heartbeat.
- Very bad dizziness or passing out.
- Very bad headache.
- Stomach pain or cramps.
- Very upset stomach or throwing up.
- Severe diarrhea.
What are some other side effects of Entereg?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
- Upset stomach.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-332-1088. You may also report side effects at https://www.fda.gov/medwatch.
If OVERDOSE is suspected:
If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
How do I store and/or throw out Entereg?
- If you need to store Entereg (alvimopan) at home, talk with your doctor, nurse, or pharmacist about how to store it.
Consumer information use
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else's drugs.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
- Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about Entereg (alvimopan), please talk with your doctor, nurse, pharmacist, or other health care provider.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
More about Entereg (alvimopan)
- Side Effects
- During Pregnancy
- Dosage Information
- Drug Images
- Drug Interactions
- Pricing & Coupons
- En Español
- Drug class: peripheral opioid receptor antagonists
- FDA Approval History