I found such description of tribendimidine:
This product is a broad-spectrum anthelmintic agent. It is a derivative of amidantel. In clinical trials, it was highly effective in treating ankylostomiasis, ascariasis and enterobiasis. But it is ineffective in treating Schistosoma mansoni or Fasciola hepatica diseas http://www.pharmaceutical-material.com/Pharmaceutical-Raw-Materials/tribendimidine.html