I got on it for arthritis and we started with the pills, but they hurt my stomach, so we switched to injections. It worked better than anything else but it raised my liver enzymes and we had to stop it. =( Still can't get the flare under control now. I didn't have any hair loss (took folic acid with it) or any other side effects, other than the liver enzymes. But, a lot of meds raise my enzymes, so I guess I'm just "special" (in a bad way).