Find videos and downloadable instructions for the two injection administration options available for DUPIXENT® (dupilumab), pre-filled syringe (200 mg or 300 mg) with needle shield for ages 6 months & older, or pre-filled pen (200 mg or 300 mg) for ages 2+ years. DUPIXENT® is a prescription medicine FDA-approved to treat nine conditions. Serious side effects can occur. Please see Important Safety Information and Prescribing Information and Patient Information on website.