RT Journal Article SR Electronic T1 A comparative study of disopyramide and procainamide in the treatment of myotonia in myotonic dystrophy. JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 461 OP 463 DO 10.1136/jnnp.45.5.461 VO 45 IS 5 A1 M Finlay YR 1982 UL http://jnnp.bmj.com/content/45/5/461.abstract AB Ten patients with myotonic dystrophy were allocated at random to treatment with disopyramide and procainamide in a cross-over trial. Disopyramide was found to be at least as effective as procainamide in the relief of myotonia; and two patients who could not tolerate procainamide both tolerated disopyramide.