S3 PROHIBITED AT ALL TIMES (IN- AND OUT-OF-COMPETITION) All prohibited substances in this class are Specified Substances. All selective and non-selective beta-2 agonists, including all optical isomers, [...] (continued) 12 S5 PROHIBITED AT ALL TIMES (IN- AND OUT-OF-COMPETITION) All prohibited substances in this class are Specified Substances. All diuretics and masking agents, including all optical isomers, e.g. d- [...] (ARM210)] and troponin activators (e.g. reldesemtiv and tirasemtiv). PROHIBITED AT ALL TIMES (IN- AND OUT-OF-COMPETITION) All prohibited substances in this class are Specified Substances. NON-APPROVED SUBSTANCES