Fludrocortisone and Rituximab interaction
Fludrocortisone and Rituximab: 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 Rituximab (Riabni) label · effective 2026-07-22
Institute medical management (e.g., glucocorticoids, epinephrine, bronchodilators, or oxygen) for infusion-related reactions as needed.
Use of concomitant immunosuppressants other than corticosteroids has not been studied in GPA or MPA or PV patients exhibiting peripheral B-cell depletion following treatment with rituximab products.
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.