[Acute intestinal occlusion and calcium antagonists].
A 41 years old male patient suffering from angina pectoris was treated with diltiazem (Tildiem). He was administered with nifedipine (Adalate) 3 times in succession and each time either complete or partial intestinal occlusion occurred. A laparotomy was carried out after the first occlusion, but no organic lesions were found. The search for an alternate non-drug related explanation proved negative. The most likely hypothesis is that of a direct relaxant activity on intestinal smooth muscle, which would explain the functional nature of the occlusion. Therefore it must be considered that the two drugs acted synergistically.