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Didrex

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Didrex

DIDREX
(benzphetamine hydrochloride) Tablets

DRUG DESCRIPTION

DIDREX Tablets contain the anorectic agent benzphetamine hydrochloride. Benzphetamine hydrochloride is a white crystalline powder readily soluble in water and 95% ethanol. The chemical name for benzphetamine hydrochloride is d-N,α-Dimethyl-N(phenylmethyl)-benzeneethanamine hydrochloride and its molecular weight is 275.82.

The structural formula (dextro form) is represented below:

Didrex (benzphetamine hydrochloride) Structural Formula Illustration

Each DIDREX (benzphetamine) Tablet, for oral administration, contains 50 mg of benzphetamine hydrochloride. Inactive Ingredients: Calcium Stearate, Corn Starch, Erythrosine Sodium. FD & C Yellow No. 6, Lactose, Povidone, Sorbitol.

What are the possible side effects of benzphetamine (Didrex)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop taking benzphetamine and call your doctor at once if you have a serious side effect such as:

  • feeling short of breath, even with mild exertion;
  • chest pain, feeling like you might pass out;
  • swelling in your ankles or feet;
  • pounding heartbeats or fluttering in your chest;
  • confusion or irritability, unusual thoughts or behavior; or
  • dangerously high blood pressure...

Read All Potential Side Effects and See Pictures of Didrex »

What are the precautions when taking benzphetamine (Didrex)?

Before taking benzphetamine, tell your doctor or pharmacist if you are allergic to it; or to any other sympathomimetic amines (e.g., decongestants such as pseudoephedrine, stimulants such as amphetamine, appetite suppressants such as phentermine); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: heart disease (e.g., chest pain, heart attack, heart murmur, fast/irregular heartbeat, heart valve problems), high blood pressure, glaucoma, history of alcohol/drug abuse, mental/mood problems (e.g., severe anxiety, bipolar disorder, psychosis, schizophrenia), high...

Read All Potential Precautions of Didrex »

Last reviewed on RxList: 2/26/2010
This monograph has been modified to include the generic and brand name in many instances.

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Didrex - User Reviews

Didrex User Reviews

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Report Problems to the Food and Drug Administration

 

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


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