VIRADEFENSE includes a powerful combination of key nutrients and botanical extracts that provide immediate support for immune challenges. VIRADEFENSE boosts immune defenses by providing nutrients such as L-lysine vitamins A and C, pantothenic acid, B12, and zinc. VIRADEFENSE includes the synergistic blend of botanical extracts black elderberry, astragalus, echinacea, and andrographis, all of which have been used traditionally for their clinically effective immune- modulating properties.