Isotretinoin and Ethanol: Interaction Details
AI-assisted, pharmacist-reviewed · AI content regenerated Jul 11, 2026 · Source data updated Jul 2, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Ethanol
No brand names on recordIsotretinoin
How we grade severity & evidence
Severity levels
- Contraindicated: These should generally not be used together.
- Major: Potentially serious — often needs a change or close monitoring.
- Moderate: Can be significant — usually manageable with monitoring.
- Minor: Usually limited clinical impact.
Evidence grades
- Established: Well documented — supported by controlled studies or strong clinical data.
- Probable: Good supporting evidence, though not definitively proven.
- Suspected: Some evidence suggests this interaction, but it is not well established.
- Possible: Limited or conflicting evidence; the interaction may occur.
- Theoretical: Predicted from the drugs' pharmacology; not yet confirmed in people.
Ratings come from the documented interaction literature and are reviewed by a pharmacist. They describe the documented risk of the combination, not what will necessarily happen to you — your dose, timing, and health picture all matter.
If you're taking isotretinoin (like Accutane or Absorica) for your skin, here's something worth knowing about alcohol. In one reported case, a person who had just one alcoholic drink developed flushing, a headache, and a general feeling of being unwell. This looks like what's called a disulfiram-like reaction, where the body has trouble breaking down alcohol the normal way, so a byproduct builds up and makes you feel lousy.
The good news is this is easy to avoid, and your care team can guide you. Please don't stop your isotretinoin on your own. Instead, talk with your pharmacist or doctor about alcohol while you're on this medication.
Effect: Disulfiram-like reaction (flushing, malaise, headache) reported after a single alcoholic drink during isotretinoin therapy.
Mechanism: Probable inhibition of aldehyde dehydrogenase, leading to acetaldehyde accumulation. Onset is rapid.
Evidence: Probable, based largely on a single case report; further study needed. Neither agent's activation is prodrug-dependent here, so the direction is a PD toxicity from impaired ethanol metabolism.
Management:
- Advise avoidance of ethanol during isotretinoin therapy.
- Note that isotretinoin also carries independent hepatotoxicity and hypertriglyceridemia risks that alcohol may compound.
- Counsel patients to report flushing or headache after alcohol.
What happens
A disulfiram-like reaction
Interaction Deep Dive
A case report described a disulfiram-like reaction when isotretinoin was taken together with ethanol. After consuming a single alcoholic beverage, the patient experienced flushing, malaise, and headache1. Further investigation is needed to assess this possible interaction.
Why it happens (mechanism)
Inhibition of aldehyde dehydrogenase
How to manage this interaction
The documented advice here is simple: avoid alcohol while you are taking isotretinoin.
- Keep taking your isotretinoin as prescribed. Do not stop or change it on your own.
- Skip alcoholic drinks during your course of treatment to sidestep the flushing, headache, and unwell feeling that were reported.
- Ask your pharmacist or prescriber if you have questions about alcohol, including things like mouthwash or cooking with wine, so they can give you personalized guidance.
Your care team can help you plan around this easily, and it is a temporary precaution during your treatment.
Management is individual — confirm any change with your pharmacist or prescriber.
Common questions
Can I take Isotretinoin and Ethanol together?
Avoid alcohol while taking isotretinoin, since even one drink has been reported to cause a disulfiram-like reaction with flushing, headache, and malaise. Keep taking your medication as prescribed and ask your pharmacist or doctor with any questions. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Isotretinoin and Ethanol interaction?
It is rated major. Potentially serious — often needs a change or close monitoring.
How quickly could this interaction happen?
The documented onset is "rapid". Effects can appear quickly, often within about 24 hours of combining the drugs.
How is the Isotretinoin and Ethanol interaction managed?
The documented advice here is simple: avoid alcohol while you are taking isotretinoin. Keep taking your isotretinoin as prescribed. Do not stop or change it on your own. Skip alcoholic drinks during your course of treatment to sidestep the flushing, headache, and unwell feeling that were reported. Ask your pharmacist or prescriber if you have questions about alcohol, including things like mouthwas… Management is individual — always follow your own care team's guidance.
How strong is the evidence for this interaction?
The evidence is graded "probable". Good supporting evidence, though not definitively proven.
Questions for your pharmacist
- Does my dose of Isotretinoin or Ethanol need adjusting while I take them together?
- What symptoms should prompt me to call you or my prescriber right away?
- Does the timing of my doses matter for this combination?
- Is there a safer alternative to one of these medications for me?
References (1)
- Bigby M & Stern RS: Adverse reactions to isotretinoin. A report from the Adverse Drug Reaction Reporting System. J Am Dermatol 1988; 18:543-552. PubMed
Keep reading about Ethanol
Keep reading about Isotretinoin
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