Myotonia precipitated by propranolol therapy.
A 39-year-old man with ischaemic heart-disease developed clinical myotonia while taking propranolol. The myotonia disappeared when administration of the drug ceased. The patient appears to have dystrophia myotonica which had not been evident before propranolol therapy.
D000328:Adult; D003327:Coronary Disease / Q000188:drug therapy; D006801:Humans; D008297:Male; D009132:Muscles / Q000473:pathology; D009223:Myotonic Dystrophy / Q000139:chemically induced* / Q000473:pathology; D011433:Propranolol / Q000009:adverse effects* / Q000627:therapeutic use
D011433:Propranolol