Who knows the two drugs you take after a cycle of steroids to prevent depression, etc.?

I had a former roommate who used steroids and he told me about these drugs that you take to prevent you crashing into depression and to keep your testosterone levels up and estrogen levels down after you come off a cycle. There have been a few people who don't know that much about steroids sometimes kill themselves because they are so depressed, which is often times because their testosterone levels are so low. Anyone know what I'm talking about?