Questions to ask your pharmacist before a new prescription
Your pharmacist is one of the most accessible experts on your medicines — and you don't need an appointment. Before you start any new prescription, a few good questions can help you take it safely and avoid surprises. Here's a simple checklist you can use at the counter or by phone.
The core questions
- What is this medicine for, and how will I know it's working?
- How and when do I take it? With food or without? Morning or night? Any missed-dose instructions?
- What side effects are common, and which ones should I call about?
- Does this interact with my other medicines, supplements, or foods? Bring your full list — including over-the-counter items and vitamins.
- Should I avoid alcohol, grapefruit, or driving?
- How long will I take it, and what happens if I stop?
- Is there a lower-cost or generic option?
What to bring with you
- A current list of everything you take — prescriptions, OTC medicines, vitamins, and supplements.
- Any allergies or past reactions to medicines.
- Your main health conditions (for example, kidney or liver problems, pregnancy).
Tip: Keep one up-to-date medicine list and show it every time. Many interactions are missed simply because one prescriber didn't know about a medicine from another. You can build and print that list with the free RxSafeCheck tool.
Why this matters
Medicines that are perfectly safe alone can sometimes interact when combined — affecting the heart's rhythm, bleeding risk, kidney function, or how sleepy you feel. Asking these questions up front is one of the simplest ways to lower that risk.
Check your own medicines free
See how your prescriptions, supplements, and food may interact — organized by the part of the body they affect.
Open the medication tool →Important: This article is educational and not medical advice. It does not replace your pharmacist or prescriber. Always confirm decisions about your medicines with a qualified professional, and call your local emergency number for emergencies. In the U.S., Poison Control is 1-800-222-1222.