Virbac SA, a veterinarian pharmaceutical company, specializes in the development and production of vaccines and medicines for domestic animals and livestock. Its large range of biological and pharmaceutical products offers treatment and prevention for companion and food producing animals. The company principally operates in two segments: namely companion animals and food producing animals. In May 2009, the company launched two Fipronil based medicines namely Effipro spot-on and Effipro spray for the treatment of flea and tick infestations in cats and dogs. The company is headquartered at Carros Cedex, France.