Haloperidol and Pitolisant interaction
Haloperidol and Pitolisant: 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 Pitolisant (Wakix) label · effective 2026-02-13
The use of WAKIX should be avoided in patients with known QT prolongation or in combination with other drugs known to prolong the QT interval [see Drug Interactions ( 7.1 )].
Prevention or Management: Avoid the use of WAKIX in combination with other drugs known to prolong the QT interval [see Warnings and Precautions ( 5.1 )] .
From the Haloperidol (Haldol Decanoate) label · effective 2025-11-11
Concomitant use of HALDOL DECANOATE with other products that prolong the QTc interval may result in a greater increase in the QTc interval, and adverse reactions associated with QTc interval prolongation, including torsade de pointes, other serious arrythmias, and sudden death [see Warnings and Precautions (5.2) ].
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.