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Prostanozol (Demethylstanozolol Tetrahydropyranyl)

Chemical Composition

[3,2-c]pyrazole-5alpha-etioallocholane-17beta tetrahydropyranol
Manufacturer: Multiple
Effective Dose (Men): 100-150 mg/day
Effective Dose (Women): 25 mg/day
Half-Life: Approx. 8 Hours
Detection Time: Unknown
Anabolic/Androgenic Ratio: Unknown (similar to Winstrol: 320/30)



Prostanozol, a.k.a. Demethylstanozolol Tetrahydropyranyl, is a modified version of dihydrotestosterone (DHT), an anabolic steroid that was designed as a male testosterone deficiency therapy drug. Prostanozol is structurally identical (with one exception) to Winstrol (Stanozolol) - the well known and definition promoting compound. The only difference between the two is the removal of Winstrols c-17 alpha alkyl (17aa) group - the component that grants it safe liver passage.

Prostanozol replaces the 17aa group with an ether group (attached to the 17-beta hydroxyl group), for which oil solubility, via the lymphatic system, serves as the delivery method.

Steroid Form

Prostanozol was marketed in the US (by its actual name) as a sports nutrition supplement, and when produced came in the form of a 25 mg oral capsule, but its no longer being manufactured.

Indications/Purpose & Side Effects

For the Indications/Purpose & Side Effects of Prostanozol see the Winstrol profile.


Additional Information

Prostanozol is a great lean muscle sharpener/finishing anabolic. It fits well into testosterone grounded cutting cycles with legendary steroidal compounds like Trenbolone, Deca-Durabolin, Equipoise, Oxandrolone, and Primobolan.

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