was wondering if anyone knew if muscle fibers can be depleted or decreased from drugs. at the start of september last year i took prozac to help my depression induced by accutane. while taking it i noticed my chest lost its shape. ive always had a very gifted chest genetically. it had great shape inner, outer, upper and lower. when i took prozac i noticed i completely lost my inner chest. no matter what i do, i cant seem to build it back up. if anyone has any help on what happened i would appreciate it.