How Long Till Cyproterone Acetate Starts Working?

Karan48281 · Jan 15, 2020

I am curious as to how cyproterone acetate works. Does it gradually lower testosterone over time? Meaning it takes a while to see its effects? Could anyone explain this to me. If so, how long would 12.5mg cyproterone acetate take to lower testosterone.

NorwoodingMyWay · Jan 15, 2020

Cyproterone Acetate takes 8 days to reach steady state. In other words, it takes 8 days to reach the maximum concentrations in the body and start doing its work.

Testosterone is usually gradually lowered and by 3-5 weeks it's reduced by 60-70%

Btw, CPA is a lipohilic drug, meaning it dissolves in oil and stored in the fat. If you are overweight/obese, the half life of CPA increases.