Namuscla 167 mg hard capsules

An Open-Label, Randomized, Cross-Over Study to Investigate the Efficacy and Safety of Mexiletine PR compared to Mexiletine IR in Patients with Non-Dystrophic Myotonias (ACHILLES study)

Open-label Extension Study to Evaluate the Long-term Safety and Efficacy of Mexiletine in Paediatric Patients with Myotonic Disorders Who Have Completed MEX-NM-301.