Bleeding ulcers from aspirin aren't unheard of at all. Could be true. Could even be the primary cause of Munzer's demise - don't know since AFAIK the autopsy results were sealed. Of course, if you get an ulcer from aspirin the other drugs you are taking can make the situation much worse.
A buddy of mine, the owner of a gym that I trained at for 3 years, used to hang with Dorian when Dorian came over here. Dorian flew him and his family to England for Christmas with his own family one year-as well as flying him to the '97 Olympia.
Dorian told my friend that one of the causes his bleeding was due to (if I remember the name correctly) Testax. As well, my friend said he used to see Dorian take Anadrol's "like candy, by the handful." Now, keep in mind, there is a certain ambiguity that lies in the term "like candy, by the handful." Could have been 3-4 tabs at a time, or half a bottle. But the principle of that phrase, was that it was a lot more than the average takes and Dorian himself blames this as the cause of the aforementioned bleeding.