Our Mission
Prescription prices can vary between pharmacies. We built RxDiff to help people compare estimates for their prescription details and location before they get to the counter.
We give every American — insured or not — instant access to real prescription prices at pharmacies near them. Completely free, no account required, no strings attached.
Our Story
RxDiff was founded to make it easier for people to compare prescription price estimates at pharmacies near them.
We built RxDiff as a free price comparison tool. Pharmacy estimates can change and are not a guarantee of the lowest available price; confirm the amount with the pharmacy.
Thomas Tang, PharmD
Thomas Tang, PharmD reviews the RxDiff guides that display his reviewer attribution. Other guides may not have a named clinical reviewer. Individual drug pages are not reviewed by him.
Thomas Tang, PharmD, Pharmacist, Nevada State Board of Pharmacy license #19458.
You can verify this license with the Nevada State Board of Pharmacy public license lookup.
How we review content
Guides displaying a reviewer line for Thomas Tang, PharmD were reviewed by him. Other guides may not have a named clinical reviewer. Drug pages show automated price estimates from RxGo and label information from the FDA; they are not individually reviewed.
Prices are estimates and can differ at the pharmacy. RxDiff is not a pharmacy, and this is not medical advice.
To report an error, contact us with the page URL and the concern. Corrections are noted on the affected page when made.
How RxDiff Works
- Search your medication — enter the drug name in the search bar on our homepage
- Select dosage and quantity — choose the exact form and amount prescribed
- Enter your ZIP code — see real prices at every participating pharmacy near you
- Show the free card — present the RxDiff discount card at the pharmacy counter. No insurance or account needed.
What We Cover
- 3,500+ medications — generics, brand-name drugs, GLP-1 injectables, controlled substances, and specialty medications
- 70,000+ pharmacies — CVS, Walgreens, Walmart, Costco, Kroger, Rite Aid, Publix, and thousands of independent pharmacies nationwide
- Real-time pricing — prices updated continuously from pharmacy benefit and coupon sources
- Manufacturer coupons — savings cards for 40+ brand-name drugs for commercially insured patients
What We Don't Do
RxDiff is not a pharmacy, healthcare provider, or insurance company. We do not dispense medications, process prescriptions, or provide medical advice. We are a free price transparency tool. Always consult your doctor or pharmacist before starting or changing any medication.
