The chemical nepetalactone is to credit for your kitty's crazy reaction to catnip. The chemical, which is a mild hallucinogen, doesn't affect humans in the same sense as we do not rely as heavily on our noses as cats do. In fact, it doesn't even affect all cats.
Finasteride is a drug that belongs to the class of androgen inhibitors, which means that it blocks the production of male sex hormones. It is sold in the United States and Canada under the brand names Proscar and Propecia.
Finasteride is a competitive and specific inhibitor of Type II 5Î±-reductase with which it slowly forms a stable enzyme complex. Turnover from this complex is extremely slow (tÂ½~ 30 days). This has been demonstrated both in vivo and in vitro. Finasteride has no affinity for the androgen receptor.