Phendimetrazine, a prescription weight loss medication, can help people lose weight by suppressing the appetite and possibly increasing metabolism. The medication comes in two forms: a short-acting tablet and a long-acting capsule. The dosage you are prescribed will be based on factors such as the particular product used, how you respond to phendimetrazine, and other medical conditions you may have.

What Is Phendimetrazine?

Phendimetrazine tartrate (Bontril®) is a prescription weight loss medication only approved for short-term use. It should be used in conjunction with an appropriate diet. Phendimetrazine comes in two forms: a short-acting version and a long-acting version.
(Click What Is Phendimetrazine Used For? for more information, including possible off-label uses.)

Phendimetrazine Side Effects

As with any medicine, side effects are possible with phendimetrazine. However, not everyone who takes the drug will experience side effects. In fact, most people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or can easily be treated by you or your healthcare provider. Serious side effects are less common.
Common side effects include but are not limited to:
(Click Side Effects of Phendimetrazine to learn more, including potentially serious side effects you should report immediately to your healthcare provider.)
Last reviewed by: Kristi Monson, PharmD
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