Dexamethasone and Haloperidol interaction
Dexamethasone and Haloperidol: the Haloperidol prescribing label describe an interaction that usually calls for monitoring, a dose change, or spacing the doses.
Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.
What the FDA labels say
From the Haloperidol (Haldol Decanoate) label · effective 2025-11-11
CYP3A4 Inducers Clinical Impact CYP3A4 inducers decrease haloperidol exposure (haloperidol is a CYP3A4 substrate) [see Clinical Pharmacology (12.3) ].
Concomitant use of HALDOL DECANOATE with CYP3A4 inducers may reduce the effectiveness of HALDOL DECANOATE.
Table 3: Other Clinically Significant Drugs Interactions See www.fda.gov/CYPandTransporterInteractingDrugs for examples of CYP3A4 and/or CYP2D6 inhibitors, CYP3A4 inducers, and CYP2D6 substrates.
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.