4. Liver Damage . This is tragically common, especially with the oral steroids. These are metabolized in the liver and are notoriously hard on this organ. Even some injected steroids make a second pass from the blood stream into the liver and can damage in that way. Again, the insanity of steroid use is shown by the fact that many steroid users actually take liver herbs such as milk thistle in the hopes of preventing liver damage instead of simply not taking the steroid.
Treatment of young subjects is of increasing concern due to accumulating evidence that daily use of oral finasteride has several severe adverse effects… Since finasteride inhibits T conversion into DHT, which is responsible for most androgen activity, it is plausible that prolonged finasteride use in predisposed individuals could simulate the effects of aging in young men. Since some of the effects of androgen inhibition cannot be reversed once local androgen levels are re-established, it is temping to speculate that patients could still suffer from adverse sexual effects several months or even permanently after finasteride discontinuation.