Some of key the players in the global hemifacial spasm market are Abbott, Allergan, Inc., Cephalon Inc., GlaxoSmithKline plc, Ipsen Group, Johnson & Johnson Services, Inc., Medytox,Inc., Merz Pharma GmbH and Co. KGaA, Novartis AG, Pfizer, Revance Therapeutics, Inc., ROCHE, Sanofi S.A, Shire plc, Stryker, Sunovion Pharmaceuticals, Inc., UCB S.A., US WorldMeds, LLC., and Valeant Pharmaceuticals International, Inc.