Nitrofurazone: vas irrigation as an adjunct in vasectomy.

Intraoperative vas irrigation with nitrofurazone utilized in a 1-mg/ml concentration can cause immediate sterility postoperatively. This irrigation procedure adds little time to the standard vasectomy and can easily be performed as an outpatient office procedure, minimizing time-consuming postoperative semen analyses. Moreover, in developing countries where postoperative vasectomy follow-up may be more difficult to obtain and may even be nonexistent, this procedure would provide an additional positive factor in an attempt to ensure sterility.