Exemestane. It is and it isn't. There are other uses for these medications that are not cancer related. For instance, it appears that weightlifter use Exemestane. Why, I don't know because I have only noted it in passing while researching the drug.

Drugs like letrozole inhibit estrogen in the body and from what I gather fight cancer tumors in that way. Chemotherapy is a directly cancer killing agent. These treatments certainly have the same goals but aren't identical. Of course letrozole et al can have serious side effects. I just wanted to add this in to be reassuring that a doctor isn't misleading you.