Havoc/Epistane (2a-3a-epithio-17a-methyl-5a-androstan-17b-ol)
RPN's product Havoc and ***'s Epistane were introduced at practically the same time and considered interchangeable by many. However, it should be noted that even when two products are identical, users can experience different effects depending on the quality of the isomer, manufacturing process and so on.
With Havoc and Epistane they are listed very slightly different 2a,3a-epithio-17a-methyl-5a-androstan-17b-ol 2 (Havoc), and 2, 3a-epithio-17a-methyletioallo cholan-17b-ol (Epistane). Dosages are usually in the 20-50mg range.
Effects: Good for promoting solid, lean muscle gains with a concomitant reduction in estrogen leading to a drier physique, and significant strength gains. This will contribute to the vascularity users typically report. Havoc and Epistane are also sometimes used purely to combat gynecomastia as they act in the body as an anti-estrogen, so that endogenous testosterone levels are less suppressed by this compound than other prohormones.
Side effects: Less hepatoxic and damaging to lipid levels than other orals but the usual androgenic side effects associated with prohormones remain a possibility.