I was on Doxycycline and it was working fairly well, but was suposed to stay out of the sun with this one too.
While doing some reading on the board I ran across a thread that suggested the the 'cycline meds can inhibit protein synthesis, which may have explained why I was getting sub-par gains the first two weeks on anadrol. Stopped taking the Doxycycline and I started getting the big gains..... so, maybe there is something to it.??