Can I take Berberine and Milk thistle extract together?
Drug interaction guide
Originally published 14 Mar 2026
Meets Patient’s editorial guidelines
- DownloadDownload
- Share
- Language
- Discussion
- Audio Version
Taking berberine and milk thistle together may increase the levels of berberine in your blood. This could lead to a higher risk of side effects such as stomach upset, diarrhoea, or low blood sugar. On the positive side, some studies suggest milk thistle might actually help berberine work better for managing cholesterol and blood sugar.
In this article:
Continue reading below
Why this happens
Milk thistle (specifically the component silymarin) can slow down the proteins in the gut and liver that normally pump berberine out of cells or break it down. This allows more berberine to stay in your system for longer.
What you should do
Back to contentsIt is generally safe to take these together, but you should monitor yourself closely for side effects like digestive discomfort or signs of low blood sugar (dizziness, shaking). If you are taking medication for diabetes or blood pressure, speak to your doctor first, as this combination might make those medications more potent.
Continue reading below
Using other medicines
Back to contentsTaking 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.
Patient picks for Drug interactions

Treatment and medication
Can I take Codeine and Magnesium together?
Taking magnesium and codeine together can lead to increased drowsiness and may cause constipation. Magnesium can also slightly interfere with how your body absorbs codeine if taken at the exact same time.

Treatment and medication
Can I take Aged garlic extract and Calcium together?
There is no known significant interaction between aged garlic extract and calcium supplements. They are generally considered safe to take together.
Article history
The information on this page is written and peer reviewed by qualified clinicians.
14 Mar 2026 | Originally published

Ask, share, connect.
Browse discussions, ask questions, and share experiences across hundreds of health topics.

Feeling unwell?
Assess your symptoms online for free
Sign up to the Patient newsletter
Your weekly dose of clear, trustworthy health advice - written to help you feel informed, confident and in control.
By subscribing you accept our Privacy Policy. You can unsubscribe at any time. We never sell your data.