Testosterone Propionate
Test Prop / Test P
Short-acting testosterone ester providing rapid onset and quick clearance. Requires frequent injections but allows precise dose titration. Favored for fine-tuning testosterone levels and managing side effects.
Half-life
2–3 days
Typical Dose
25–50 mg EOD
30/50Route
intramuscular
Category
sexual_health
Evidence Overview
Strength of evidence across clinical, expert, and experimental lanes.
How Testosterone Propionate is dosed in practice
Usually taken by intramuscular injection. Typical range: 25–50 mg EOD. Half-life: 2–3 days. Each card gives the dose, frequency and duration from one evidence lane: Clinical (human trials), Expert (practitioner protocols) or Experimental (early or animal data). These ranges describe what has been studied or used; they are not a prescription.
Work out the units to draw with the reconstitution calculator, how long a vial lasts with the vial duration calculator, and how levels fall between doses with the half-life calculator.
No human testosterone propionate injection is currently marketed in the US. Older reference dosing for low testosterone was 25–50 mg IM two to three times weekly, reflecting its short half-life; every-other-day schedules are practitioner convention.
- Drug reference sources
Preferred by some practitioners for patients sensitive to estrogen fluctuations. Daily or EOD dosing produces very stable serum levels. Often used during initial TRT titration before switching to longer esters.
- Precision TRT dosing protocols — clinic data
- Endocrine practitioner experience reports
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Upgrade to ProSafety & Contraindications
- Prostate or breast cancer
- Polycythemia
- Severe sleep apnea
Testosterone Propionate: common questions
What is Testosterone Propionate?
Short-acting testosterone ester providing rapid onset and quick clearance. Requires frequent injections but allows precise dose titration. Favored for fine-tuning testosterone levels and managing side effects.
How is Testosterone Propionate dosed?
Testosterone Propionate is usually taken by intramuscular injection. Typical range in DoseCraft's library: 25–50 mg EOD. Clinical (human trials): 25–50 mg IM (older reference dosing); 2–3 times weekly; Ongoing. Expert (practitioner protocols): 20–50 mg EOD or 10–25 mg daily; Every other day or daily; Short-term titration or ongoing. These ranges describe what has been studied or used; they are not a prescription.
Is Testosterone Propionate FDA-approved?
Testosterone Propionate is not an FDA-approved finished drug. DoseCraft's library lists it as prepared by compounding pharmacies, which depends on current FDA rules for that substance.
What is the half-life of Testosterone Propionate?
DoseCraft's library lists a half-life of 2–3 days. Half-life sets how often a compound is dosed and how long it takes to clear: about five half-lives.
Who should not use Testosterone Propionate?
Listed contraindications: Prostate or breast cancer; Polycythemia; Severe sleep apnea.
Free Guides for Testosterone Propionate
Information is for educational purposes only. Always consult a licensed healthcare provider before starting any peptide regimen.
Page updated . How we grade evidence: methodology.