Butalbital, acetaminophen, and caffeine and Tiagabine interaction

Butalbital, acetaminophen, and caffeine and Tiagabine: 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 Butalbital, acetaminophen, and caffeine (BUTALBITAL, ACETAMINOPHEN AND CAFFEINE) label · effective 2026-05-19

Moderate

Butalbital, acetaminophen and caffeine may enhance the effects of: other narcotic analgesics, alcohol, general anesthetics, tranquilizers such as chlordiazepoxide, sedative-hypnotics, or other CNS depressants, causing increased CNS depression.

Drug interactionsby drug classView label on DailyMed

From the Tiagabine (Tiagabine Hydrochloride) label · effective 2021-09-30

Minor

In most cases, patients were using concomitant medications (antidepressants, antipsychotics, stimulants, narcotics) that are thought to lower the seizure threshold.

Warningsby drug classView label on DailyMed
No interaction

Theophylline : A single 10 mg dose of tiagabine did not affect the pharmacokinetics of theophylline at steady state.

Drug interactionsby drug classView label on DailyMed

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

Open in the checker

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.