Guaifenesin is also a centrally acting skeletal muscle relaxant. Guaifenesin has antitussive effects, it can inhibit the cough-reflex sensitivity in acute viral cough, it is an expectorant commonly by thinning the mucus or phlegm in the lungs.

The handsheet paper containing laccase and butyl 4-hydroxybenzoate shows a greater efficiency against the growth of bacteria.