<p><strong>Strong CYP3A4 Inhibitors</strong>: Upadacitinib exposure is increased when co-administered with strong CYP3A4 inhibitors (such as ketoconazole). Upadacitinib should be used with caution in patients receiving chronic treatment with strong CYP3A4 inhibitors.<br />
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<strong>Strong CYP3A4 Inducers</strong>: Upadacitinib exposure is decreased when co-administered with strong CYP3A4 inducers (such as rifampin), which may lead to reduced therapeutic effect of Upadacitinib. Coadministration of Upadacitinib with strong CYP3A4 inducers is not recommended.</p>