[Clonidine abstinence syndrome. A clinical case].

During hospitalization a patient with acute pulmonary oedema caused by myocardial dilation and chronic kidney failure presented high blood pressure and repeated episodes of supraventricular tachycardia. The complication was attributed to the withdrawal of clonidine and was treated by reintroduction of the drug combined with nifedipine, nitroderivates and antiarrhythmic drugs.