Quick reference: Every-other-day IM or SC injection. Rarely used for routine TRT; sometimes selected for short-duration research protocols where rapid titration up or down is desired.
Fast facts
Active
Testosterone Propionate
Maker
503A / 503B pharmacies
FDA Approval
Not approved as finished product
Half-life
~0.8 days (very short)
Form
Multidose oil vial. Common compound strength: 100 mg/mL.
Indication
Not a finished FDA-approved drug; rarely used in clinical TRT due to short half-life and high injection frequency
Dose schedule
Every-other-day IM or SC injection. Rarely used for routine TRT; sometimes selected for short-duration research protocols where rapid titration up or down is desired.
Recommended monitoring
Same monitoring panel. Trough timing is more sensitive than with longer esters.
Clinical notes
High injection burden makes this impractical for most TRT use cases. Listed here for completeness.
Controlled substance. Testosterone esters are Schedule III in the United States. A valid prescription from a DEA-registered prescriber is required. This page is research informational reference only.
Compound product. Compound Testosterone Propionate is not a finished FDA-approved drug. Verify the Certificate of Analysis from the supplying 503A or 503B pharmacy at each refill.
What is the typical dose schedule for Compound Testosterone Propionate?
Every-other-day IM or SC injection. Rarely used for routine TRT; sometimes selected for short-duration research protocols where rapid titration up or down is desired.
What is the half-life of Testosterone Propionate?
Compound Testosterone Propionate has a half-life of approximately ~0.8 days (very short). Steady-state plasma levels are reached after roughly four to six half-lives of consistent dosing.
What monitoring labs are recommended on Compound Testosterone Propionate?
Same monitoring panel. Trough timing is more sensitive than with longer esters.
What is the difference between compound and branded testosterone propionate?
Compounded testosterone propionate contains the same active ester as branded products but is produced by a 503A or 503B pharmacy under physician prescription rather than a finished-drug manufacturer. Concentration commonly differs (compound is often 200 mg/mL vs branded 100 mg/mL), so always verify the label when calculating draw volume.
Is Compound Testosterone Propionate a controlled substance?
Yes. Testosterone and its esters are Schedule III controlled substances in the United States. A valid prescription from a DEA-registered prescriber is required to obtain Compound Testosterone Propionate legally. State-level regulations may impose additional restrictions.
For research informational use only. Not medical advice. Compound Testosterone Propionate is compounded by 503A or 503B pharmacies and is not an FDA-approved finished drug product. Consult a qualified healthcare provider before any clinical decision. ASCEND, ascendpeptide.org