“…Early toxicological studies indicate that rats can tolerate chronic administration of 9 ml/kg/day DMSO before showing any signs of toxicity (Noel et al, 1975). There have been numerous reports of free radical scavenging and other beneficial effects of DMSO, in rats, at dosages between 1.0 and 6.0 ml/kg (e.g., Wang et al, 2000;Lind et al, 2000;Chang et al, 2001;Nakamuta et al, 2001).…”