Medication Review: Laboratory Monitoring for Guselkumab in Psoriasis, PsA, and IBD

In this Medication Review, Lisa Asfahani, PA-C, shares practical laboratory monitoring recommendations for guselkumab across psoriasis, psoriatic arthritis, and inflammatory bowel disease. The discussion reviews FDA-approved indications, dosing basics, and what labs to check before and after initiating therapy, including TB screening and liver function monitoring. Designed for rheumatology, dermatology, and GI clinicians, this overview offers clear, real-world guidance to support safe and effective use of IL-23 inhibition in clinical practice.