Sodium nitroprusside in the treatment of Prinzmetal's variant angina.

A patient had attacks of Prinzmetal's angina, resistant to sublingual nitrates in high doses and to a calcium antagonist. All the crises wee resolved by sodium nitroprusside therapy. This report suggests that nitroprusside merits further evaluation in the treatment of Prinzmetal's angina, particularly in cases resistant to usual therapy in which the evolution towards myocardial infarction is very likely.