Hi there. I am also very concerned about this. I just took my first 25 mg spiro about 30 min ago. So far I feel a little tired. I used to work out hard core and was sculpting a nice upper body but my chest back and neck is so bad with cyctic acne and scars that I never take my shirt off EVER. I would rather be a little smaller and able to take my shirt off any day. I will keep you posted on how it works.
I am very scared of taking madications but unlike accutane any neagtive side effects I have heard from Spiro is not permanent. When you stop taking it they go away. If you even get any at all. I say give it a shot.