Buy interferon alfa-2b - Grippferon nasal spray dosed 500 IU /dose (10 thousand IU /ml) 10 ml View cart “interferon alfa-2b – Grippferon nasal spray dosed 500 IU /dose (10 thousand IU /ml) 10 ml” has been added to your cart. Showing the single result Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low interferon alfa-2b – Grippferon nasal spray dosed 500 IU /dose (10 thousand IU /ml) 10 ml $21.00 Add to cart