Just came across this on the Stallone website. It is his answer to a question from a reporter who asked if he had ever used roids. I found it pretty funny
: In 1987, when I was making Rambo III, I used to take an amino acid that's nearly as strong as steroids. It's about 15 times more powerful than the typical amino acid, but give none of the raw rage - the anger - that comes with steroids. All steroids do is make you a cumbersome, apelike goon.

: In 1987, when I was making Rambo III, I used to take an amino acid that's nearly as strong as steroids. It's about 15 times more powerful than the typical amino acid, but give none of the raw rage - the anger - that comes with steroids. All steroids do is make you a cumbersome, apelike goon.