I recently had some blood work done and the doctor was a little worried about my creatinine levels. I had just come off of a 1ad/4ad cycle (didn't tell the doc). Curious to know if this is a know side affect or if anyone else has experienced this. I am not taking creatine so this is not the source of the excess creatinine. I know that a hard workout will increase tissue breakdown and thus increase creatinine levels, but I didn't work out for 24hrs prior to the blood test. Any ideas?