HelloPharmacist

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A comprehensive, pharmacist‑reviewed drug & supplement database

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Get clear, evidence‑based answers about your meds & supplements

The free service HelloPharmacist has been built on for nearly 13 years. Ask a real, licensed pharmacist your question — most are answered within 24 hours. No spam, no account needed.

Answered by licensed U.S. pharmacists · Free · usually within 24 hours
Drug–Supplement Interaction Checker

Check your meds against any supplement — in seconds

Built on our own database of 283,000+ interactions and 214,000+ products — refreshed weekly so you always get current, comprehensive results. See our sources →

Check Interactions
Sourced from the NIH DSLD & Natural Medicines · pharmacist‑reviewed
Checking two medications? Browse our drug–drug interaction library
Written & reviewed by licensed U.S. pharmacists Sourced from NIH, FDA, NLM & Natural Medicines Evidence‑based & cited How we review & where our data comes from →
Meet Pharmacist AI

Your Personal Supplement & Drug Interaction Expert

Get pharmacist-backed answers to your supplement interaction questions in seconds. Powered by trusted data and advanced AI.

Try Pharmacist AI

Grounded only in our own pharmacist-reviewed database — it answers from our data and links its sources. It won’t invent interactions. Always confirm with your pharmacist or doctor.

Explore the supplement database

Go beyond interactions. Browse 214,000+ supplement products by brand, or dig into evidence-based monographs for the ingredients inside them.

Browse Supplement Brands Ingredient Monographs Nutrient Depletion Checker
214,830
Supplement Products
283,704
Interactions Analyzed
1,988
Medications Covered

Free tools for your meds & supplements

Everything you need to use your medications and supplements safely — no signup, always free.

⚕️ Drug & Supplement Interactions Check any medication against vitamins, herbs, and supplements — severity-graded and cited. Open checker 💊 Drug–Drug Interactions Check two or more medications against each other in our pharmacist-reviewed library. Open library 📖 Drug Information Database Plain-language monographs for thousands of prescription and OTC medications. Browse drugs 🌿 Nutrient Depletion Checker See which vitamins and minerals your medications may deplete over time. Check depletions Live 📉 Drug Shortages Track current FDA drug shortages, why they’re happening, and available alternatives. View shortages 🔎 NDC & Drug Lookup Look up any drug by NDC — packaging, pricing, labeling, and appearance. Look up an NDC

Why Choose HelloPharmacist

Trusted pharmaceutical expertise at your fingertips

Licensed Pharmacists

All answers come from experienced, licensed pharmacists with years of clinical experience.

24-Hour Response

Get expert answers to your medication questions within 24 hours, completely free.

Confidential & Secure

Your privacy matters. All questions are handled with complete confidentiality.

Evidence-Based

All information is backed by current pharmaceutical research and clinical guidelines.

Community Driven

Join thousands of users who trust HelloPharmacist for their medication questions.

Always Free

No hidden fees, no subscriptions. Quality pharmaceutical advice, completely free.

Dr. Brian Staiger, PharmD

Meet Dr. Brian

Brian Staiger, PharmD, BCPS, is a licensed pharmacist with more than 13 years of experience across retail pharmacy, clinical pharmacy, medication safety, pharmacy program development, and healthcare administration. He is the founder of HelloPharmacist.com, where he helps patients better understand medications, supplements, drug interactions, side effects, dosing questions, and practical pharmacy-related concerns. Dr. Staiger’s professional background gives him a broad, real-world perspective on how medications are prescribed, dispensed, reviewed, and used by patients. His work combines clinical pharmacy knowledge with patient-friendly explanations designed to make complex medication information easier to understand. In addition to his pharmacy training, Dr. Staiger has completed additional herbalist training and educational certificates in medical ethnobotany, supporting his interest in herbal products, supplements, and drug-supplement interactions. You can contact Dr. Staiger at [email protected] or connect with him on LinkedIn.

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Latest Questions & Answers

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Levothyroxine 88 mcg Tablets Changed From Green to Lavender

Thanks for reaching out to us. Great question!With most medications, a new color (or shape, imprint etc...) on a refill simply means the pharmacy swit...

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Hi there! For most magnesium glycinate capsules, opening them and stirring the powder into a spoonful of yogurt is perfectly reasonable, and it should...

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Thanks for using HelloPharmacist! Saccharomyces boulardii isn't expected to interact with Multaq (dronedarone). The probiotic is a live yeast that sta...

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Is the Magnesium Stearate in Flecainide Animal or Vegetable Based?

Hello! Thanks for reaching out to us!Magnesium stearate can technically be made from either animal or plant sources, but the pharmaceutical-grade mate...

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Thanks for your question!Elderberry doesn't have any known interaction with Mounjaro (tirzepatide), and based on how each one is handled by the body,...

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