Should I take my medicine with or without food?
"Take with food" or "on an empty stomach" isn't a suggestion — it can affect how well a medicine works and how it feels. Here's why.
Why some medicines say "with food"
- Food can reduce stomach upset (common with NSAIDs, steroids, metformin).
- Food can help absorption of certain medicines.
Why some say "empty stomach"
- Food can block absorption of some medicines (like levothyroxine and some antibiotics).
- These often work best taken well before or after eating.
Food-timing that specifically matters
- Levothyroxine (thyroid): usually taken on an empty stomach, separate from coffee, calcium, and iron.
- Levodopa (Parkinson's): high-protein meals can blunt it — ask about timing.
- Some antibiotics: dairy, calcium, and iron can reduce absorption.
Keep it consistent: When a medicine is sensitive to food, taking it the same way each day matters as much as the instruction itself. Your pharmacist can help you build a simple schedule.
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.