Cannabidiol (prescription) and Thiothixene interaction

Cannabidiol (prescription) and Thiothixene: both prescribing labels describe an interaction that usually calls for monitoring, a dose change, or spacing the doses.

Moderate

Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.

What the FDA labels say

From the Cannabidiol (prescription) (Epidiolex) label · effective 2026-05-29

Moderate

Other CNS depressants, including alcohol, could potentiate the somnolence and sedation effect of EPIDIOLEX.

Warnings and precautionsby drug classView label on DailyMed
Moderate

CNS Depressants and Alcohol Concomitant use of EPIDIOLEX with other CNS depressants (including alcohol) may increase the risk of sedation and somnolence [see Warnings and Precautions ( 5.2 )] .

Drug interactionsby drug classView label on DailyMed

From the Thiothixene label · effective 2025-02-25

Moderate

As in the case of other CNS-acting drugs, patients receiving thiothixene should be cautioned about the possible additive effects (which may include hypotension) with CNS depressants and with alcohol.

Warningsby drug classView label on DailyMed

Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.

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Not 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.