Medicines and supplements
Supplements and medicines: what is documented
Start from your medicine. For each one, the supplements that official sources say may interact with it, how each is documented, and what to ask your pharmacist.
Ask your pharmacist or doctor before combining a supplement with any medicine. These pages say what is documented, and where it comes from.
- Supplements to avoid with anti-seizure medicines
- Supplements to avoid with antibiotics
- Supplements to avoid with bile acid sequestrants
- Supplements to avoid with bisphosphonates
- Supplements to avoid with blood pressure medication
- Supplements to avoid with blood thinners
- Supplements to avoid with diuretics
- Supplements to avoid with dolutegravir
- Supplements to avoid with immunosuppressants
- Supplements to avoid with insulin
- Supplements to avoid with levodopa
- Supplements to avoid with levothyroxine
- Supplements to avoid with lithium
- Supplements to avoid with MAOIs
- Supplements to avoid with metformin
- Supplements to avoid with methotrexate
- Supplements to avoid with orlistat
- Supplements to avoid with penicillamine
- Supplements to avoid with proton pump inhibitors
- Supplements to avoid with quinolone antibiotics
- Supplements to avoid with spironolactone
- Supplements to avoid with statins
- Supplements to avoid with tetracycline antibiotics
- Supplements to avoid with warfarin
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