Bontril PDM (Oral)

Generic name:phendimetrazine (oral route) [ fen-dye-MET-ra-zeen-TAR-trate ]
Drug classes:Anorexiants, CNS stimulants

Medically reviewed by Drugs.com. Last updated on May 7, 2022.

Commonly used brand name(s)

In the U.S.

• Bontril
• Bontril PDM
• Bontril Slow-Release
• Melfiat
• Obezine
• Phendiet
• Phendiet-105
• Prelu-2

Available Dosage Forms:

• Capsule, Extended Release
• Tablet

Therapeutic Class: Appetite Suppressant, Centrally Acting

Chemical Class: Phendimetrazine

Uses for Bontril PDM

Phendimetrazine is used as part of a short-term plan, along with a low calorie diet, for weight reduction. It is used in obese patients who have not been able to lose weight with diet and exercise alone. Phendimetrazine belongs to the group of medicines known as appetite suppressants.

This medicine is available only with your doctor's prescription.

Before using Bontril PDM

In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:

Allergies

Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

Pediatric

Appropriate studies have not been performed on the relationship of age to the effects of phendimetrazine extended-release capsules in children younger than 17 years of age. Safety and efficacy have not been established.

Appropriate studies have not been performed on the relationship of age to the effects of phendimetrazine tablets in the pediatric population. Safety and efficacy have not been established.

Use of phendimetrazine slow-release capsules is not recommended in children younger than 12 years of age.

Geriatric

Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of phendimetrazine extended-release capsules in the elderly. However, elderly patients are more likely to have age-related kidney problems, which may require caution and an adjustment in the dose for patients receiving phendimetrazine extended-release capsules.

No information is available on the relationship of age to the effects of phendimetrazine slow release capsules and tablets in geriatric patients.

Breastfeeding

There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.

Interactions with medicines

Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necess...