Immediately discontinue administration if a serious hypersensitivity reaction occurs. Increased risk of infection. Caution in patients w/ chronic infection, history of recurrent infection, or known risk factors for infection. Do not initiate risankizumab treatment in patients w/ any clinically important active infection until it resolves or is adequately treated. Evaluate for TB infection prior to initiating risankizumab treatment. Monitor for signs & symptoms of active TB in patients on risankizumab treatment. Consider anti-TB therapy prior to initiating risankizumab in patients w/ history of latent or active TB in whom adequate course of treatment cannot be confirmed. Consider completion of all appropriate immunisations prior to initiating risankizumab therapy. Patients who have received live vaccination (viral or bacterial) should wait at least 4 wk prior to starting risankizumab treatment. Patients on risankizumab treatment should not receive live vaccines during treatment & for at least 21 wk after treatment. Women of childbearing potential should use effective contraception during treatment & for at least 21 wk after treatment. Preferable to avoid use during pregnancy. A decision should be made whether to discontinue/abstain from risankizumab therapy during breast-feeding. Limited information in elderly ≥65 yr. 150 mg: Should not be injected into areas where skin is tender, bruised, erythematous, indurated, or affected by psoriasis. Safety & efficacy in childn & adolescents 5-18 yr have not been established. No relevant use in childn <6 yr for the indication of moderate to severe plaque psoriasis or in childn <5 yr for the indication of psoriatic arthritis. 360 mg: Should not be injected into areas where skin is tender, bruised, erythematous, indurated or damaged. 360 mg/600 mg: Contains polysorbate 20, which may cause allergic reactions. Safety & efficacy in childn ≤17 yr have not yet been established for the treatment of Crohn's disease.