Lurasidone and Phenobarbital interaction
Lurasidone and Phenobarbital: 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 Lurasidone (Latuda) label · effective 2025-01-31
Strong CYP3A4 inducers (e.g., rifampin, avasimibe, St.
Concomitant use with a strong CYP3A4 inducer (e.g., rifampin) ( 2.6 , 4 , 7.1 ).
Intervention: LATUDA should not be used concomitantly with strong CYP3A4 inducers [see Contraindications ( 4 )] .
Examples: Diltiazem, atazanavir, erythromycin, fluconazole, verapamil Strong CYP3A4 Inducers Clinical Impact: Concomitant use of LATUDA with strong CYP3A4 inducers decreased the exposure of lurasidone compared to the use of LATUDA alone [see Clinical Pharmacology ( 12.3 )] .
John's wort, phenytoin, carbamazepine Moderate CYP3A4 Inducers Clinical Impact: Concomitant use of LATUDA with moderate CYP3A4 inducers decreased the exposure of lurasidone compared to the use of LATUDA alone [see Clinical Pharmacology ( 12.3 )] .
From the Phenobarbital (SEZABY) label · effective 2025-12-23
CNS depressants: Closely monitor for sedation and respiratory depression.
CNS Depressants Closely monitor for signs of sedation and respiratory depression with concomitant use of SEZABY with other CNS depressants, including opioids [see Warnings and Precautions (5.1)] .
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.