Dymethazine is a type of chemical known as an anabolic steroid. It's found in some bodybuilding supplements, despite being banned in the US.

People use dymethazine for athletic performance, muscle strength, erectile dysfunction (ED), weight loss, and other conditions, but there is no good scientific evidence to support its use. Dymethazine might also be unsafe.

Dymethazine is considered an anabolic androgenic steroid. In the US, it's illegal to include anabolic steroids in supplement products. These chemicals are also banned by the World Anti-Doping Agency (WADA).
When taken by mouth: Dymethazine is possibly unsafe. Anabolic steroids such as dymethazine might cause side effects including infertility, behavioral changes, hair loss, and acne. It might also lead to liver damage and heart disease.

Special Precautions & Warnings:

Pregnancy and breast-feeding: Dymethazine is possibly unsafe when taken by mouth during pregnancy or while breast-feeding. Avoid use.


There is interest in using dymethazine for a number of purposes, but there isn't enough reliable information to say whether it might be helpful.
Likely effective Effectiveness definitions
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Dosing & administration

Despite being banned in the US, dymethazine is still found in some dietary supplements sold online that are marketed for bodybuilding and performance enhancement. Dymethazine is considered an anabolic steroid and may be unsafe.

Interactions with pharmaceuticals

It is not known if Dymethazine interacts with any medicines. Before taking Dymethazine, talk with your healthcare professional if you take any medications.

Interactions with herbs & supplements

There are no known interactions with herbs and supplements.

Interactions with foods

There are no known interactions with foods.
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