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Can I take 1.5mg and Stelara together?

Drug interaction guide

Taking Stelara (ustekinumab) with alcohol can increase the strain on your liver and may worsen certain side effects of the medication, such as tiredness or dizziness. Alcohol can also trigger or worsen the symptoms of psoriasis and inflammatory bowel disease, which are the conditions Stelara is used to treat.

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Why this happens

Both alcohol and Stelara are processed or monitored by the liver. While there is no direct chemical reaction between the two, alcohol can cause inflammation and damage to liver cells, potentially complicating the long-term safety of your treatment. Additionally, alcohol is a known trigger for inflammation in the body.

It is best to avoid or strictly limit alcohol while you are being treated with Stelara. If you choose to drink, keep your intake very low and monitor yourself for any unusual tiredness or signs of liver issues (such as yellowing of the eyes or skin). Discuss your alcohol consumption with your specialist to ensure it is safe for your specific health situation.

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Taking multiple medicines? Our Medicines Interaction Checker helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.

Disclaimer

This information is for general educational purposes only and should not be relied upon as a substitute for professional medical advice. Always consult your GP, pharmacist, or another qualified healthcare professional before making decisions about your medications. Individual circumstances may vary, and only a healthcare professional who knows your medical history can provide personalised guidance.

Article history

The information on this page is written and peer reviewed by qualified clinicians.

  • 14 Mar 2026 | Originally published
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