Immunoglobulin F(ab’)2 fragments of equine origin (solution for dilution for infusion).


Indicated for the treatment of envenomation (grade II or III) by European vipers (Vipera aspisVipera berusVipera ammodytes).


VIPERFAV is a preparation containing equine immunoglobulin F(ab’)2 fragments which have the property of neutralising the venom of three species of vipers: Vipera aspisVipera berusVipera ammodytes.

These equine immunoglobulin F(ab’)2 fragments fix the venom antigens present in the blood in the form of inactive F(ab’)2-antigen complexes, reducing the level of free venom in the blood.

The product has a Marketing Authorisation (34009 562 154 09) granted by ANSM.

VIPERFAV is distributed in France by Inresa Pharma ( For product enquires please contact Inresa Pharma. 

VIPERFAV is distributed in all other countries by Flynn Pharma (  For product enquiries please contact Flynn Pharma.