How to take Amivantamab

Amivantamab (Amivantamab) is given as an intravenous infusion. Dosing is divided into two consecutive days for the first week, then once a week for the next three weeks, and once every two weeks thereafter. The dosage of the drug depends on the patient's weight. Continue treatment until the disease worsens or the side effects become too severe. Treatment should be stopped temporarily or permanently and subsequent doses may be reduced if the patient experiences certain side effects. Before the first treatment, patients should be given antihistamines (anti-allergy drugs), antipyretics, and corticosteroids to reduce infusion-related reactions. For the rest of the treatment, the patient should be given antihistamines and antipyretics.