[Two cases of anaphylaxis after induction of general anesthesia using rocuronium].

We experienced two cases of anaphylaxis during anesthesia using rocuronium in two months. In both cases, we carried out intradermal test and positive reaction occurred with rocuronium. In both cases, the second anesthesia without neuromuscular blockade was uneventful. Though it is difficult to diagnose anaphylaxis, we should suspect anaphylaxis when cardiovascular collapse, bronchospasm and/or dermal symptoms occur after induction of anesthesia.