Testosterone propionate
Anabolic steroidsAlso known as Test P
A short ester needing frequent injection, with correspondingly little accumulation.
How it works
A three-carbon ester. Too short to hold a depot for long, so it clears quickly and has to be injected every day or two to hold a steady level.
In the body
Shape of a single dose, modelled as one compartment with first-order absorption. The peak is normalised to 100% because bioavailability and volume of distribution are not published for most of these compounds.
0.8 days after intramuscular injection in oil.
Doses
Weekly totals in the same range as the longer esters, delivered in smaller, more frequent injections. Post-injection soreness is common and dose-related.
Vial sizes
Side effects
- Injection-site pain, notably more than the longer esters
- As testosterone generally, raised haematocrit, acne, oestradiol effects, testicular atrophy
- Monitor: Haematocrit, androgens raise red cell mass, and the rise is dose-dependent
- Monitor: Blood pressure
- Monitor: Lipids, especially a fall in HDL
- Monitor: Total and free testosterone, LH and FSH
- Monitor: Oestradiol, for the aromatising compounds
Cautions
- Prostate or breast cancer
- Trying to conceive
- Polycythaemia
- Pregnancy
Status
Prescription-only, Schedule III in the United States. Banned in sport at all times.
Reference information for personal record-keeping. Not medical advice, and not a recommendation to use any of these compounds.