Fludrocortisone and Upadacitinib interaction
Fludrocortisone and Upadacitinib: both prescribing labels flag this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.
Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.
What the FDA labels say
From the Fludrocortisone (Fludrocortisone Acetate) label · effective 2026-05-06
Chicken pox and measles, for example, can have a more serious or even fatal course in children on immunosuppressant corticosteroids.
Patients who are on immunosuppressant doses of corticosteroids should be warned to avoid exposure to chicken pox or measles and, if exposed, to obtain medical advice.
Children who are on immunosuppressant drugs are more susceptible to infections than healthy children.
From the Upadacitinib (Rinvoq) label · effective 2026-06-30
Most patients who developed these infections were taking concomitant immunosuppressants such as methotrexate or corticosteroids.
Monitor RINVOQ/RINVOQ LQ-treated patients who may be at risk for gastrointestinal perforation (e.g., patients with a history of diverticulitis and those taking concomitant medications including NSAIDs or corticosteroids).
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.