The invention discloses deuterated 3-piperidinopropiophenones as well as their physiologically tolerated salts. Furthermore, the invention concerns the use of deuterated 3-piperidinopropiophenones for the treatment of muscular illnesses as well as for the preparation of pharmaceutical drugs for the treatment of muscular illnesses.In addition, the invention discloses pharmaceutical formulations containing deuterated 3-piperidinopropiophenones as well as their physiologically tolerated salts for the treatment of muscular illnesses in addition to containing pharmaceutically tolerated adjuvants and/or additives.