Relistor medication

Medications Index

Relistor

Relistor (Methylnaltrexone) belongs to a group of medications known as opioid receptor antagonists. It is used to treat Constipation caused by prescription pain medications called opioids (e.

Available form

Injectable, Injectable

Manufacturer

Salix

Dosage

8mg/0.4ml12mg/0.6ml20mg/ml

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Drug Information

Index
Dosage
Relistor®

Dosage

The usual recommended dose of Relistor (Methylnaltrexone) is based on body weight:

  • 6 mg for people who weigh 33 kg to less than 38 kg
  • 8 mg for people who weigh 38 kg to less than 62 kg
  • 12 mg for people who weight 62 kg to 114 kg
  • 18 mg for people who weigh 115 kg to 126 kg

For people who weigh less than 33 kg or more than 126 kg, your doctor will calculate the dose of Relistor (Methylnaltrexone) that is appropriate for you.

Relistor (Methylnaltrexone) is injected once every other day under the skin of the upper arm, abdomen, or thigh.

It is important to use Relistor (Methylnaltrexone) exactly as prescribed by your doctor. If you (or a family member or friend) are injecting Relistor (Methylnaltrexone), a health care professional will show you how to inject the medication properly. Read the instructions provided in the package insert carefully. If you are not sure how to use Relistor (Methylnaltrexone), contact your doctor or pharmacist.

It is recommended that you use a different site for each injection. Do not inject into skin that is tender, red, bruised, hard, or has stretch marks or scars. If you are giving the injection to yourself, do not inject into the upper arm. You should be sitting or lying down when you receive Relistor (Methylnaltrexone). Do not stand up quickly after the injection as you may feel dizzy.

If you do not notice improvement within a week, contact your doctor.

Many things can affect the dose of a medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are using the medication without consulting your doctor.

Store Relistor (Methylnaltrexone) at room temperature, protect it from light, and keep it out of the reach of children. Do not allow it to freeze.

Do not dispose of medications in wastewater (e.g. down the sink or in the toilet) or in household garbage. Ask your pharmacist how to dispose of medications that are no longer needed or have expired.

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