Schering did used to make a fast-acting primo, that is, the Methenolone Acetate version as an injectable. However this was 20mg/ml and is no longer made. Some underground labs, particularly in the US have recently been making injectable methenolone acetate. However beware, as there is a reason that it was originally made at 20mg/ml; anything from 50mg/ml and above of this product will cause severe injection site pain following injection, and furthermore pretty much everyone I have read of who has tried this form of Primo at such concentrations will get flu like symptoms after every shot for a day or so. Thus the reason why methenolone acetate is not marketed by any major underground labs.
This advanced Primobolan cycle is considered the ultimate advanced pre-contest or cutting cycle where once again, Testosterone is relegated to its TRT support role. The primary anabolics then become Primobolan (the injectable variant) and Trenbolone, which is considered an extremely powerful compound in its own right. Primobolan and Trenbolone are both completely immune to aromatization into Estrogen, which completely eliminates any risk of bloating, water retention, soft puffy look to the physique, or any Estrogen-related side effects. Primobolan is also utilized at its higher effective dose, and alongside the immense anabolic strength of Trenbolone, this cycle can effectively be utilized as a pre-contest cycle, a cutting cycle, a lean mass cycle, or a bulking and strength gaining cycle all equally effectively. The last point to note is that all compounds used in this cycle are injectable compounds, providing a degree of convenience that is further potentiated by the fact that all hormones here possess the same ester: Enanthate. The result is the most convenient injection and administration schedule any person could ask for in a cycle, as all 3 compounds can be injected at the same times of the week, and they can all be injected all at once and loaded into the same syringe all at once.