Medication safety
Before Adding a Supplement: Ask for an Interaction Review
A supplement can affect your medicines even if it is sold without a prescription or described as natural. Bring the exact label to your pharmacist or clinician before adding it. A product name alone may not reveal all of the ingredients or their amounts.
What to do next
- List vitamins, herbs, powders, energy products, and other supplements alongside prescribed and over-the-counter medicines.
- Ask whether the product can change the absorption or effect of a medicine you take.
- Tell procedure teams about supplements before surgery or testing; some can affect bleeding, anesthesia, or results.
- Discuss the reason you want the supplement and whether a food change, test, or different treatment would address it better.
When to contact your care team
Do not replace prescribed treatment with a supplement without discussing it. Report new symptoms after starting a product and keep the container for identification. A severe allergic reaction or other emergency needs immediate medical care.
Put it into practice
For a blend, photograph both the front and the full ingredient panel. Tell the clinician how often you actually use it, including occasional products. “I take a multivitamin” may leave out an additional sleep aid, pre-workout powder, or herbal product that changes the advice.
Notes for your next visit
Write these in your own notes or on a printed copy. Bring them to your follow-up.
- Exact product and ingredient label:
- The benefit I hope to get:
- Interaction advice and monitoring plan:
Sources and further reading
General education for adults. Follow your clinician’s individual plan and the current instructions for your prescribed product. This handout is not a complete medication guide. If instructions conflict, ask your clinician or pharmacist to clarify. For a medical emergency, call 911.