British Dragon Primobol Methenolone Enanthate 100 mg Vial
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Injection · 450 mg/ml · 10 ml
British Dragon Andropen 450 is a multi-ester testosterone mix at 450 mg per ml in a 10 ml multi-dose vial. The higher concentration means fewer millilitres per shot, and the mix is built to hold a level between twice-weekly injections.
GMP-manufactured and HPLC-verified, with a Certificate of Analysis on file per batch. Andropen 450 for sale with international shipping and a U.S. domestic option where stocked.
Andropen 450 is a testosterone mix at 450 mg per ml, supplied in a 10 ml multi-dose vial, and the most concentrated testosterone product in the British Dragon range. The exact ester list and the per-ml split of this vial are not documented in the sources consulted for this page, so the timing and recovery notes below follow the documented behaviour of multi-ester testosterone rather than a product-specific label.
A multi-ester testosterone product releases the same hormone at several speeds at once. Esters are testosterone with an acid chain attached, and esterase enzymes in the blood free the hormone as the chain is cut: a short arm lifts the level within days while a long arm covers the gaps between shots. The same logic drives the four-ester Sustabol 350 and the five-ester Sustanon 270. Because the whole 450 mg dose aromatises, estradiol control matters more as the weekly total rises, which is where an aromatase inhibitor such as Aromasin enters a heavy protocol.
No approved dose exists for this product, so every figure is a community protocol rather than a prescription. Reported totals run from roughly 250 mg per week at entry to 600 mg per week at the top end, and at 450 mg per ml that is a smaller volume of oil than the same total drawn from a 250 mg per ml vial. Injections are usually split twice weekly with the sites rotated. The mix suppresses natural testosterone, so recovery is Nolvadex 20 mg daily for four weeks once the long esters have cleared, with Clomid as the alternative.
Each batch is produced under GMP conditions and verified by third-party HPLC, with a Certificate of Analysis held for the batch. Store the vial upright at room temperature, away from light, excess heat and moisture, and do not refrigerate or freeze it. Andropen 450 is a laboratory product, not a licensed medicine in the United States or the European Union.
For laboratory research only. Consult a healthcare professional before use.
| Trade Name | Andropen 450 |
| Generic Name | Testosterone mix (multi-ester) |
| Manufacturer | British Dragon |
| Dosage | 450 mg/ml |
| Package | 10 ml multi-dose vial |
| Drug Class | Injectable androgen |
| Administration | Intramuscular injection |
| Storage | Room temperature, away from light |
| Research Use | Not a licensed medicine |
| Verification | GMP production, third-party HPLC, COA per batch |
| Shipping | International and U.S. domestic options, handling 1-2 days |
Before you ask
It is a multi-ester testosterone mix at 450 mg per ml in a 10 ml multi-dose vial, the most concentrated testosterone item in the British Dragon range. The vial label gives the total concentration and describes the contents as a mix; the individual esters and their milligram shares are not published, so this page states the total and does not guess the split.
Concentration decides how much oil carries a given dose. At 450 mg per ml, a 450 mg weekly total is one millilitre, where a 250 mg per ml product would need nearly two. For anyone who prefers smaller injection volumes, or who is combining the mix with other injectables in the same week, the higher concentration is the practical reason to pick this vial over Andropen's lower-strength relatives.
Twice weekly is the usual pattern, into the gluteal or deltoid muscle with the sites rotated. A mix normally includes a slow ester that keeps the level covered between shots, but because the exact esters of this vial are not published, treat the schedule as a practical starting point rather than a label instruction. No regulator has approved a dosing schedule for this product.
They are the testosterone class effects: water retention and higher blood pressure, acne and oily skin, and gynecomastia when estradiol is not controlled. Longer runs have been associated with a rising haematocrit. Natural testosterone production is suppressed, with possible testicular shrinkage and effects on fertility that usually reverse after recovery. Blood counts, lipids and estradiol are the usual monitoring set, and any of these signs is a reason to seek medical advice.
Yes, since the mix suppresses the body's own testosterone at any effective dose. Standard recovery is tamoxifen 20 mg daily for four weeks, with clomiphene as the alternative, started only after the slowest ester has cleared, which for long testosterone esters takes around two weeks. Blood work about six weeks later shows whether luteinising hormone, follicle-stimulating hormone and total testosterone have come back.
The vial is listed on this page, but the offer is shown as out of stock right now, so the buy button is inactive and an email field is offered for restock notices instead. The product data sets out shipping to international destinations and a U.S. domestic option where stock allows, with order handling of one to two business days. Price and availability appear in the buy box whenever the item is loaded.
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