In 1978, the FDA approved dimethyl sulfoxide (DMSO) for instillation into the bladder as a
treatment for interstitial cystitis. Since DMSO is metabolized to
MSM by the body, it is possible that
MSM is the active ingredient in DMSO treatments (Childs 1994).
Snoring: Blum & Blum conducted a randomized, double-blind, placebo controlled clinical trial of an MSM-containing throat spray for snoring (Blum & Blum, 2004).