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This product is not intended to diagnose, treat, cure, or prevent any disease. These statements have not been evaluated by the Food and Drug Administration.
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Herbs and supplements can change how your medications work — sometimes dangerously. This guide explains what herb–drug interactions are, which combinations are riskiest, and how to check before you combine.
A herb–drug interaction happens when a plant or supplement changes how a medication works in your body — making it stronger, weaker, or more likely to cause harm. Herbs contain active compounds that can speed up or slow down the enzymes and transporters your body uses to process drugs.
Why it matters
The risk is highest for older adults, anyone taking several medications, and people with chronic conditions.
Always tell your doctor and pharmacist about every herb and supplement you take — and check below before combining.
Tell the Virtual Herbalist what you're taking and ask whether a herb is safe to combine. Always confirm with your pharmacist.