Here is a quick cut and paste that is all over the internet.
"The recommended daily dose in children and adults is 1-5 mg/kg of body weight per day. The usual effective dose is 1-2 mg/kg/day but higher doses may be required, and the dose should be individualized. Response is not often immediate, and a minimum trial of three to six months should be given. Following remission, some patients may be maintained without the drug; others may be maintained on an established lower daily dosage. A continued maintenance dose is usually necessary in patients with congenital aplastic anemia."
So you can see that 100mg is not a high dose at all for a 200 lb man, on the contrary it is rather conservative. If I took the high end of the recommended dose I'd be at 440mg a day of pharmaceutical grade drol, not the UGL 100mg a day I just got done with. I personally don't like Anadrol because even at 200mg a day I didn't see any noticeable gains. This is my second run with it and I'm not gonna waste my time again, I get much better results from Dbol or Winstrol.