Geneza Pharmaceuticals GP Prima - Primobolan Enanthate 100

Name: Geneza Pharmaceuticals GP Prima - Primobolan Enanthate 100
Brand: Geneza Pharmaceuticals
SKU: OFFER-8468
Availability: OutOfStock

Injection · 100 mg/ml · 10 ml

Out of stock

Geneza Pharmaceuticals GP Prima is methenolone enanthate at 100 mg/ml, supplied as a multi-dose injection vial.

Methenolone is one of the mildest androgens in the class, with very little aromatisation, and the enanthate ester gives it a slow, even release. GMP-manufactured, HPLC-verified, Certificate of Analysis (COA) on file per batch. Current availability is shown on the page.

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Product overview

Geneza Pharmaceuticals GP Prima - Methenolone Enanthate 100

GP Prima is the Geneza Pharmaceuticals methenolone product, sold as methenolone enanthate at 100 mg per ml in a multi-dose vial. Methenolone, known historically as Primobolan, is a dihydrotestosterone-type androgen with a methyl group that keeps it from being aromatised easily, which is why it is described as one of the gentler compounds in the class. The same substance is offered as Primoplex and Primoxyl 100.

Methenolone enanthate at 100 mg per ml
Intramuscular injection, multi-dose vial
GMP-manufactured and HPLC-verified, Certificate of Analysis (COA) per batch
Low aromatisation, but still suppresses natural testosterone production

How Methenolone Enanthate Works

Methenolone binds the androgen receptor with moderate affinity and is a poor substrate for aromatase, so estradiol rises little and water retention is not the usual feature of this compound. The enanthate ester makes the release slow and even, which suits longer protocols where the level matters more than a fast start. Like every suppressive androgen it reduces LH and FSH output, so the body's own testosterone production falls and a recovery plan is needed afterwards.

Dosage & Administration

No medical dose is stated on this page, because the vial is a research product and not a licensed medicine. Because the concentration is 100 mg per ml, the volumes in community protocols are larger than for a 250 mg per ml product, and the enanthate ester allows injections to be spaced out rather than taken daily. Estrogen control with Arimidex is rarely needed with this compound, while recovery still is: Nolvadex 20 mg daily for four weeks, with Clomid as the alternative. Store the vial at room temperature, away from light, heat and moisture.

For laboratory research only. Consult a healthcare professional before use.

Specifications

Trade Name	GP Prima
Generic Name	Methenolone enanthate
Manufacturer	Geneza Pharmaceuticals
Dosage	100 mg per ml
Package	10 ml multi-dose injection vial
Drug Class	Injectable anabolic androgenic steroid, DHT derivative
Administration	Intramuscular injection
Storage	Room temperature, away from light and heat
Prescription Status	Research use only
Verification	Batch details confirmed with supplier
Shipping	International and U.S. domestic options

Stacks

Primo in a Long Lean Run

GP Prima 100 is used over a long block with a testosterone ester as the base, because the methenolone contributes little estrogenic activity but still shuts down natural production on its own.

PCT: required - the compound suppresses natural testosterone.

Mild Compound for a First Run

Because it aromatises very little and its androgenic side effects are described as mild, methenolone is often the second compound in a simple layout, with a low-dose testosterone ester doing the heavier work.

PCT: required - Nolvadex 20 mg daily for 4 weeks, Clomid as the alternative.

Consult a healthcare professional before any cycle. Doses are common community protocols.

FAQ

Before you ask

Questions, answered

GP Prima is a Geneza Pharmaceuticals vial of methenolone enanthate at 100 mg per ml, the compound sold historically as Primobolan. In laboratory work it is used as a reference for the mild, low-aromatising end of the androgen group. In sports it is taken in longer, gentler protocols, usually with a testosterone base present, because it does not supply the androgen the body needs.

The enanthate ester releases slowly, so the level builds over the first two to three weeks and the compound is described as gradual rather than fast. It also means the level keeps falling slowly after the last injection, so a recovery plan has to be placed later than for a short ester such as acetate or propionate. Nothing about the release is instant.

No medical dosing schedule is published here, because the vial is supplied for research use and not as a licensed medicine. The 100 mg per ml concentration means community protocols use larger volumes than products dosed at 200 or 250 mg per ml, and the enanthate ester allows a wide injection interval. Any numbers found online are unverified practice, not a label.

The class warnings list acne, oily skin, scalp hair loss, mood changes, irritability, aggression, sexual dysfunction and shrinkage of the testicles, and more seriously raised blood pressure, heart problems, stroke, liver damage and blood clots. Methenolone aromatises very little, so estrogenic effects are less common than with testosterone, but it is still a suppressive androgen and the shutdown of natural production is the same.

Yes. Methenolone suppresses LH and FSH, so the body's own testosterone production falls even though the compound is mild and barely aromatises. Recovery is planned after the last injection: Nolvadex 20 mg daily for four weeks, with Clomid as the alternative. The length of the enanthate tail means recovery usually starts later than with acetate.

Yes, the vial is listed on this page with international and U.S. domestic shipping options. The page currently shows this offer as out of stock, so the stock label is the figure to watch, and orders ship discreetly once the pack is restocked. Check the current stock label before ordering, because a single pack can go out of stock between shipments.

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