An Explanatory Study Evaluating the Muscle Relaxant Effects of Intramuscular Magnesium Sulphate for Dystonia in Complex Regional Pain Syndrome

In this double-blind placebo-controlled crossover study there was no evidence found of a muscle relaxant effect of intramuscular magnesium sulphate in dystonia related to CRPS. Consequently, there is insufficient support for new studies evaluating the efficacy of other routes of MG administration in CRPS-related dystonia.