Caverject (Nolotil, Esiclene) has some very unusual characteristics. It will allow any muscle to increase in size within a very short period of time. Basically Caverject stimulates the tissue at the point of injection causing a slightly painful inflammation and swelling of the muscle tissue itself. Because inflammation is normally painful esiclene ampules usually contain 20mg lidocaine, a mild painkiller. The swelling only lasts for about four to five days making this a popular right-before-competition drug to help size-up the under developed muscle groups.

Esiclene is often injected daily to make up for the decrease in swelling. Esiclene only promises temporary gains of around 1-1.5 in on arms and calves when used daily at injections of around 1ml the first day and 2ml (one per muscle) the days following.

Although technically Caverject (formebolone) is a steroid, not many bodybuilders use it for any sort of muscle building property. Caverject is yet another form of methandrostenolone (Dianabol). It´s basically the same structure, with an attachment of a 2-carboxaldehyde group and an 11-hydroxyl group. The 11-hydroxyl-group keeps the steroid from aromatizing (converting to estrogen), and from what I can see, the 2-carboxaldehyde group keeps it from being highly androgenic or anabolic. Another thing, which is actually more important for our purposes here that the 2-carboxaldehyde group does, is make Formebolone very irritating to inject. That´s exactly what made the injectable version of this drug very popular with competitive bodybuilders. Basically it´s a very weak steroid, no real anabolic/androgenic activity, in a vial at only 2 mg/ml, and it hurts like hell to inject. There´s also no virilization (3) possible, and it´s also 17-alpha-alkylated and thus toxic to the liver. No anabolic effects, it hurts to inject, and is liver toxic.

Anyway, you can clearly see why Formebolone is really a bit of one-trick-pony. It´s really only injected by precontest bodybuilders into lagging body parts prior to a competition, to take advantage of the localized swelling it causes. Swelling caused by Formebolone should subside in 3-4 days, roughly the same as with injectable Winstrol or Testosterone Suspension, after which the injected muscle will return to its original size.