U.S. Anti-Doping Agency (USADA)

Click here to log in to the
Athlete Connect application

Click here to log in to
Athlete Express

USADA logo with registered symbol.

Global DRO logo in whiteSearch Medications & Ingredients

Close this search box.

Category: Science


Pregnenolone: What You Need to Know

Pregnenolone is a hormone naturally produced in the body by the adrenal gland. Pregnenolone is also made from cholesterol, and is the starting material in the production of testosterone, progesterone, cortisol, estrogen and other hormones.

Read More »
Stanozolol vial and needle

What is Stanozolol?

Stanozolol is a synthetic steroid derived from testosterone that has anabolic & androgenic properties, & classified as a Schedule III controlled substance.

Read More »
Design of a molecule.

Science Spans Generations

USADA Chief Science Officer, Dr. Larry Bowers, & his son Dr. Geoff Bowers will both independently present at the American Chemical Society spring meeting.

Read More »
pills spilt out of open pill bottles

Half-Life of a Drug

Determining the half-life of a drug depends on many variables, and it is extremely important that athletes understand the clearance times of medications.

Read More »
Scroll to Top