Loxapine and Quetiapine interaction
Loxapine and Quetiapine: both prescribing labels 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 Quetiapine (SEROQUEL XR) label · effective 2026-04-10
SEROQUEL XR and other antipsychotic drugs should be used cautiously in patients at risk for aspiration pneumonia.
As with other antipsychotics, quetiapine should be used cautiously in patients with a history of seizures or with conditions that potentially lower the seizure threshold, e.g., Alzheimer’s dementia.
From the Loxapine label · effective 2026-01-08
Loxapine, like other antipsychotics, may impair mental and/or physical abilities, especially during the first few days of therapy.
Therefore, ambulatory patients should be warned about activities requiring alertness (e.g., operating vehicles or machinery) and about concomitant use of alcohol and other CNS depressants.
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.