Osaterone acetate is an orally active steroid anti-androgen agent, mainly used for benign prostatic hyperplasia (BPH) in dogs. Osaterone acetate competitively antagonizes androgen receptor and inhibits 5α-reductase, reducing the concentration of dihydrotestosterone (DHT) while blocking the growth-stimulating effects of testosterone and DHT on prostate cells. Osaterone acetate can rapidly alleviate the symptoms of BPH in dogs without affecting the fertility of breeding dogs.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.