Health Guide
Drug Guide

Fenfluramine (By mouth)

Fenfluramine (fen-FLUR-a-meen)

Used for short periods of time as part of a diet plan to help you lose weight.

Brand Name(s):

There may be other brand names for this medicine.

When This Medicine Should Not Be Used:

You should not use this medicine if you have had an allergic reaction to fenfluramine or related medicines such as amphetamines, asthma medicine (metaproterenol, terbutaline, or isoproterenol), or certain cold and allergy medicine (decongestants such as ephedrine, pseudoephedrine, or phenylpropanolamine). You should not use this medicine if you have problems with drug or alcohol abuse, heart disease, or glaucoma. You should not use fenfluramine if you have taken a type of medicine called a MAO inhibitor (such as Nardil®, Marplan®, or Parnate®) within the past 14 days. These 2 medicines taken together or within 14 days of each other can cause dangerously high blood pressure.

How to Use This Medicine:


If a dose is missed:

How to Store and Dispose of This Medicine:

Drugs and Foods to Avoid:

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

Warnings While Using This Medicine:

Possible Side Effects While Using This Medicine:

Call your doctor right away if you notice any of these side effects:

If you notice these less serious side effects, talk with your doctor:

If you notice other side effects that you think are caused by this medicine, tell your doctor

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088

Last Updated: 12/12/2016

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