title: Propranolol and myotonia.
mesh_terms: D000818:Animals; D001001:Anura; D006801:Humans; D009119:Muscle Contraction / Q000187:drug effects; D009222:Myotonia / Q000139:chemically induced*; D011433:Propranolol / Q000009:adverse effects*
chemical_list: D011433:Propranolol