The invention refers to an inhalable compressor containing at least 80% (by weight) n-acetyl-c and at least one pharmaceutically acceptable precursor chemical (especially the compressor). In this case, there is no sulfur smell, which is characterized in that the compressor is prepared with a particle made of the following products: A single activity principle shrinkage procedure obtained by drying, mixed with defroster before compressionLa presente invencion se refiere a comprimidos tragables que contienen por lo menos 80% en peso de N-acetilcisteina (NAC) y por lo menos un excipiente farmaceuticamente aceptable, en particular comprimidos, en los que el olor sulfuroso se encuentra ausente, caracterizado porque dicho comprimido se prepara utilizando un granulado preparado mediante un procedimiento de granulacion por via seca del principio activo solo, con el que se mezclan los excipientes antes de la compresion
