Drug interactions
Caffeine + Carbamazepine
Severity: Minor
Caffeine and Carbamazepine: minor interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Carbamazepine may increase caffeine clearance and slightly reduce its effects. Caffeine is also reported to have minor effects on carbamazepine levels at high intake. The clinical effect is generally small.
What this interaction means in plain words
Caffeine and Carbamazepine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Caffeine belongs to Miscellaneous; Carbamazepine belongs to Central Nervous System.
Why it happens
Carbamazepine induces CYP1A2, which metabolizes caffeine.
What to do
No action is usually needed. Be aware that patients may tolerate higher caffeine intake and that very high caffeine consumption may affect seizure threshold.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Carbamazepine
- Artemether / lumefantrine + Carbamazepine Contraindicated
- Cabotegravir + Carbamazepine Contraindicated
- Carbamazepine + Delamanid Contraindicated
- Carbamazepine + Dienogest / estradiol valerate Contraindicated
- Carbamazepine + Doravirine Contraindicated
- Carbamazepine + Elbasvir / grazoprevir Contraindicated
Other interactions of Caffeine
- Caffeine + Ephedrine Major
- Caffeine + Fezolinetant Major
- Caffeine + Methylenedioxymethamphetamine Major
- Caffeine + Selegiline transdermal Major
- Adenosine + Caffeine Moderate
- Benzphetamine + Caffeine Moderate
Frequently asked questions
Can I take Caffeine with Carbamazepine?
MediHelp rates the interaction as minor. Caffeine and Carbamazepine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Carbamazepine may increase caffeine clearance and slightly reduce its effects. Caffeine is also reported to have minor effects on carbamazepine levels at high intake. The clinical effect is generally small.
How serious is the interaction between Caffeine and Carbamazepine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No action is usually needed. Be aware that patients may tolerate higher caffeine intake and that very high caffeine consumption may affect seizure threshold.
What other medicines interact with Carbamazepine?
MediHelp also lists interactions of Carbamazepine with, for example, Artemether / lumefantrine, Cabotegravir, Delamanid. The full list is on the Carbamazepine page.
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