Can I Drink Alcohol While on a Biologic?
What the evidence shows and what to discuss with your prescriber
Quick Answer
Moderate alcohol consumption does not have a direct pharmacokinetic interaction with most biologic medications. However, alcohol can worsen autoimmune disease activity, impair immune function, stress the liver (especially if you also take methotrexate), and affect sleep and overall health. Most prescribers advise moderate alcohol consumption at most while on biologic therapy — the specific guidance depends on your medication and condition.
Alcohol and Biologic Medications — What the Evidence Shows
Unlike small-molecule drugs that are metabolized by liver enzymes (CYP450 system), most large-molecule biologics (monoclonal antibodies) are not hepatically metabolized. They are broken down by proteolysis (protein degradation) throughout the body. This means that alcohol does not significantly affect how most biologics are processed in your body.
However, this does not mean alcohol is without concern while on biologic therapy:
⚠️ Methotrexate + Alcohol = Higher Risk
If you take methotrexate alongside your biologic (common in RA), alcohol significantly increases hepatotoxicity risk. Most rheumatologists recommend avoiding alcohol entirely while on methotrexate.
🔴 Psoriasis Worsens with Alcohol
Alcohol is a well-documented trigger for psoriasis flares and is associated with worse disease severity and reduced biologic response in psoriasis patients.
🫁 IBD and Alcohol
Alcohol can irritate the GI lining, trigger IBD flares, and worsen intestinal permeability. Crohn's and UC patients are generally advised to limit or avoid alcohol.
🛡️ Immune Function
Heavy alcohol consumption impairs immune function. Combined with the selective immunosuppression of biologics, heavy drinking may increase infection risk.
Alcohol Guidance by Drug Class
| Medication / Class | Alcohol Consideration |
|---|---|
| TNF Inhibitors (Humira, Enbrel, etc.) | Moderate alcohol generally tolerated; avoid heavy drinking; liver monitoring recommended with regular alcohol use |
| JAK Inhibitors (Rinvoq, Xeljanz) | Moderate alcohol generally tolerated; some liver enzyme elevation possible; discuss with prescriber |
| IL-23 Inhibitors (Skyrizi, Tremfya, etc.) | No significant direct interaction; alcohol may worsen psoriasis flares — consider reducing intake |
| IL-6 Inhibitors (Actemra, Kevzara) | Moderate alcohol generally tolerated; liver function monitored routinely with IL-6 inhibitors |
| Dupixent (IL-4/IL-13) | No significant interaction; alcohol can worsen eczema and sleep quality — consider limiting |
| Methotrexate (combined with biologic) | Avoid alcohol — significant hepatotoxicity risk when combined with MTX |
💬 Questions About Your Biologic and Lifestyle?
BiologicHealthPlus clinical pharmacists are available 24/7 for personalized guidance on alcohol, diet, exercise, and lifestyle while on biologic therapy.
Talk to a Pharmacist →Related: Diet and biologics · Biologics and methotrexate · Exercise and biologics
📚 Sources & Further Reading
Content developed with reference to leading health organizations, peer-reviewed research, and FDA prescribing information.
Medical Disclaimer: Educational content reviewed by the BiologicHealthPlus Clinical Team. Consult your healthcare provider for personalized advice. Last reviewed: August 2026.