The most popular way to do a Clenbuterol cycle is the 2 on 2 off approach. Either 2 days on 2 days off or 2 weeks on 2 weeks off. Due to the receptors getting saturated after a period of time it is vital you take time off or else the results will start to diminish. Generally a Clenbuterol cycles will last around 6 weeks at 2 weeks on 2 weeks off, it is often also used along with T3 (thyroid hormone) and an Anabolic such as winstrol, test prop and trenbolone . Incorporating Anabolic Steroids into a clenbuterol cycle will lead to much better results.
Results wise, users should expect extreme strength increases and weight gain in a relatively short 2-4 week period. Weight gain upwards of 20lbs in 4 weeks is not unheard of with this incredibly potent compound. Although subcutaneous water gain would be minimal, intramuscular water retention should be expected. This is due to inhibition of 11b-hydroxylase and build-up of mineralcorticoids which encourage salt and water retention within the muscles. The most obvious physical effects will be improved vascularity, aggressive muscular pumps, and oily skin.
While methyldrostanolone can stack well with most other steroids, it should never be stacked with another methylated (17aa) steroid.
More specifically, the methylcobalamin form of B12 is recommended, as it has been shown to be the most effective. Taking B12 gives you a huge boost of energy while training, and more importantly, greatly helps your recovery.