As with all medicinal products, Vaxigrip may cause undesirable effects: Local Reactions:
Erythema (redness), swelling, pain, ecchymosis, induration.
Fever, malaise, shivering, fatigue, headaches, sweating, joint and muscular pain.
These reactions usually disappear within 1-2 days without treatment.
Neuralgia (pain located along the course of the nerve), paraesthesia (a sensory perception disorder where reactions to touch, pain, heat or movement are affected), convulsions and transient thrombocytopenia (an insufficient amount of platelets, which play an important role in blood clotting).
Allergic reactions leading to shock in rare cases; vasculitis (inflammation of the blood vessels) with transient renal involvement, in very rare cases; neurological disorders eg, encephalomyelitis, neuritis, Guillain-Barre in rare cases as well.