Primoxyl is Kalpa Pharmaceuticals methenolone acetate: 25 mg per tablet, fifty tablets in the pack. Methenolone is the substance behind the Primobolan name, and this is the oral ester rather than the injectable one. The distinction matters more than the label suggests, because the two esters behave differently in almost every practical way.
Buying an oral form of a mild compound is often a decision about convenience. Here it is a trade: no injection, and a smaller share of every milligram doing work, because a tablet has to pass through the gut wall and the liver first. The sections below describe what that costs and how people work around it.
Product Overview
Methenolone is a dihydrotestosterone derivative with a modest anabolic and weak androgenic profile, described in animal work at roughly a one to two or one to three anabolic to androgenic ratio. It does not aromatise, so there is no estradiol conversion, no water retention and no gynecomastia from that mechanism, and it is not alkylated at the seventeenth position, so the hepatic injury pattern associated with that family is not described for it.
What it does have is first-pass loss. A swallowed tablet is partly broken down before it reaches the circulation, and the acetate ester is short, so one large dose does not hold the way a depot injection does. That single limitation explains why the day is divided, why the oral form is written about as the weaker brother of the injectable, and why expectations should be set lower rather than higher.
History is worth one line because it explains the drug's reputation: methenolone was used clinically for anaemia related to bone-marrow failure, a use that has largely disappeared and has been discontinued in most countries. The remaining supply is research-grade material, and the detection story is longer than most people assume - a sulfated metabolite has been traced for up to seventeen days, and a longer-lived metabolite for as long as forty days after oral use.
Dosage Protocol
There is no validated dose for body-composition goals: the drug was studied for anaemia, not for this. The rows below separate what the sources support from what they leave open.
| Beginner | No confirmed oral dose. The tablet strength is 25 mg, and there is no clinical figure for this purpose |
| Intermediate | No confirmed dose either; per milligram the oral ester is weaker than the injected form |
| Advanced | Short blocks only, since axis suppression accumulates whatever dose is used |
| Female | No confirmed data for the oral acetate; a vendor figure of 50-100 mg weekly exists for the injectable ester only |
| Administration | Oral, split into two or three portions a day because of the short ester and the first-pass losses |
The splitting rule is arithmetic rather than style: several smaller portions keep more of the day covered than one large tablet, because what survives the liver is a fraction of each dose. The fifty-tablet pack is therefore a short block in practice, not a long one.
Suggested Protocols
Oral methenolone is rarely run alone. It suppresses natural production without replacing it, so a base belongs in the plan, and the mild profile makes it a support rather than the centre of a course.
For a repaired look after a heavier course, methenolone is often paired with a shorter ester such as Testoxyl Propionate 100, which leaves the system faster than the long esters and lets the estradiol question be answered sooner.
What to Expect
- Slow and small changes. Methenolone delivers less active hormone per milligram through the oral route, so a rapid recomp is not a reasonable expectation.
- No water, no puffiness. Without aromatisation the look stays dry, and whatever mass appears is tissue rather than fluid.
- Lipids still move. HDL falls during exposure to androgens, and that is a class effect rather than a methenolone peculiarity.
- The axis is suppressed anyway. Total and free testosterone fall while it is used, so a recovery plan is needed even for a gentle profile.
- Enzyme elevation is not the story here. Since the molecule is not methylated, the typical oral-steroid liver picture is not described for it.
- Stomach load from tablet count. At several tablets a day taking them with food is a practical measure, not a medical one.
Side Effects and Management
Post-Cycle Therapy
Suppression is real even on a mild compound, and the short acetate ester means recovery can start soon after the last tablet rather than waiting weeks.
Storage and Ordering
Tablets want a dry cupboard at room temperature with the pack sealed, and the batch code and expiry should be read on arrival. A pill organiser is genuinely useful at this strength, since the day's total is normally two or three portions rather than one.
The pack is listed in the Kalpa Pharmaceuticals catalogue next to the other non-aromatising orals, Stanoxyl 10 and Oxandroxyl 10, and next to the recovery shelf, Nolvaxyl 20 and Clomixyl 50. Shipments leave in plain packaging, and both dispatch options are shown on the listing.
