Prescription Anorectics ("Diet Pills")


Know the facts and connect with support to help you address known or suspected substance use with your child.

These drugs are often referred to as diet pills, and have been developed and marketed to replace amphetamines as appetite suppressants. Anorectic drugs produce many of the effects of the amphetamines, but are generally less potent. All are controlled substances because of the similarity of their effects to those of the amphetamines.


Understand the risks

Dizziness, dry mouth, difficulty sleeping, irritability, nausea, vomiting, diarrhea, or constipation may occur. Unlikely but serious side effects include fast/irregular/pounding heartbeat, mental/mood changes (agitation, uncontrolled anger, hallucinations, nervousness), uncontrolled muscle movements, and change in sexual ability/interest.

Identify & address use

Signs of use include dizziness, difficulty sleeping, irritability, diarrhea and constipation. If you’re concerned your child may be misusing anorectics or other substances, the following can help you address the behavior more effectively.

Table of commonly prescribed anorectics

Generic Drug Composition Brand Name
benzphetamine Didrex
diethylproprion Tenuate, Tepanil
fenfluramine Pondimin
mazindol Sanorex, Mazanor
phendimetrazine Bontril, Prelu-2, Plegine
phentermine Ionamin, AdipexP