What Is Prostamax? Dosage, Half-Life & How to Track It

What Prostamax is and how it works

Prostamax is a synthetic tetrapeptide with the sequence Lys-Glu-Asp-Pro (KEDP), developed out of research into a prostate tissue peptide complex. It is part of the same Khavinson bioregulator family as the other short peptides on this list, but tissue-targeted toward the prostate specifically.

The proposed mechanism is the same epigenetic story that runs through this whole peptide class: short chains like KEDP are theorized to interact with chromatin and histones, modulating which genes a target tissue expresses, rather than binding a receptor the way a conventional drug does.

The research behind Prostamax is preclinical — the daily intramuscular dosing convention traces back to animal studies run over 15–60 days, not a human clinical trial. It is not FDA-approved, and there is no controlled human data on its effects on the prostate.

Typical dosing & reconstitution

Prostamax is reconstituted with bacteriostatic water — a 20 mg vial mixed with 2.0 mL gives 10 mg/mL, where one U-100 unit equals 100 mcg (0.1 mg).

Unlike most bioregulators on this list, the studied route is intramuscular, not subcutaneous:

That mirrors the 15–60-day daily-IM window used in the preclinical research it is modeled on — the 12-week option is an extension some protocols add, not something derived from new data.

Half-life & what it means for frequency

No published pharmacokinetic study has measured how long Prostamax stays active in the body. The once-daily IM schedule matches how it was administered in the underlying preclinical work, not a calculated clearance rate.

That also explains the route choice: intramuscular injection was simply what the source studies used. There's no data comparing it against a subcutaneous version, so switching routes on your own is an unverified deviation from the only protocol that has any evidence behind it at all.

What to track & possible side effects

There is no dedicated human tolerability study for Prostamax — what exists is preclinical, and it doesn't speak meaningfully to side effects in a person. Standard sterile-injection and sourcing precautions apply, and IM injections in particular call for correct site technique to avoid nerve or vascular injury.

What's actually worth tracking here is simple: dose, day, and whatever prostate-health marker motivated trying it — logged consistently enough that an 8–12-week protocol produces something you can look back on.

Frequently asked questions