Didrex

Generic name:benzphetamine [ benz-FET-ah-meen ]
Brand names: Didrex, Regimex
Drug classes:Anorexiants, CNS stimulants

Medically reviewed by Drugs.com. Last updated on Nov 9, 2021.

What is Didrex?

Didrex is a stimulant that is similar to an amphetamine. Benzphetamine is an appetite suppressant that affects the central nervous system.

Didrex is used together with diet and exercise to treat obesity (overweight).

Didrex may also be used for purposes not listed in this medication guide.

Warnings

Didrex can harm an unborn baby or cause birth defects. Do not use this medicine if you are pregnant.

Do not use Didrex if you have used an MAO inhibitor in the past 14 days. A dangerous drug interaction could occur. MAO inhibitors include isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, tranylcypromine, and others.

Taking Didrex together with other diet medications (including medicines available over the counter) can cause a rare fatal lung disorder called pulmonary hypertension. Do not take this medicine with any other diet medications without your doctor's advice.

Didrex may be habit-forming and should be used only by the person it was prescribed for. Never share this medicine with another person, especially someone with a history of drug abuse or addiction. Keep track of the amount of medicine used from each new bottle. Benzphetamine is a drug of abuse and you should be aware if anyone is using your medicine improperly or without a prescription.

Before taking this medicine

Do not use Didrex if you have used an MAO inhibitor in the past 14 days. A dangerous drug interaction could occur. MAO inhibitors include isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, tranylcypromine, and others.

Taking Didrex together with other diet medications (including medicines available over the counter) can cause a rare fatal lung disorder called pulmonary hypertension. Do not take Didrex with any other diet medications without your doctor's advice.

You should not take this medicine if you are allergic to benzphetamine, or if you have:

• coronary artery disease (hardening of the arteries);

• heart disease, heart rhythm disorder;

• severe or uncontrolled high blood pressure;

• overactive thyroid;

• glaucoma;

• if you are pregnant;

• if you have a history of drug or alcohol abuse; or

• if you have used any other diet pills within the past year.

To make sure Didrex is safe for you, tell your doctor if you have:

• high blood pressure;

• diabetes; or

• a thyroid disorder.

Didrex may be habit-forming and should be used only by the person it was prescribed for...