“Implications: In this study, we demonstrated that dantrolene , a drug that reduces the intracellular Ca2+ level, can inhibit L-arginine availability and inducible nitric oxide synthase activity in macrophages.”
“We conclude that the mechanisms by which dantrolene attenuated NO synthesis may be associated with the inhibition of availability of L-arginine by reducing the affinity for L-arginine, accompanied by a parallel decrease of the activity of iNOS.”