[Kallikrein in a double-blind study in idiopathic oligozoospermia].

In a double blind study the effectivity of kallikrein (Padutin 100) was investigated in 90 men with idiopathic oligozoospermia. After oral application of kallikrein (600 Kallikrein units per day) over a period of seven weeks a statistically significant increase of the sperm number and sperm motility was observed compared to the placebo group. The conception rate was 38% in the kallikrein group and 16% in the placebo group.