Avanafil 100mg PMI 49.8 - $80 US vs $40 internationalArmodafinil 150mg PMI 47.8 - $50 US vs $26 internationalTirzepatide 5mg (weekly) PMI 36.9 - $1,069 US vs $674 internationalSildenafil costs 97% less if you cross a border. The molecule is the same. The molecule does not care.GoodRx coupon is still a markup. A smaller one. But still.Cost Plus Drugs charges $0.14 a pill for finasteride. CVS charges $4.95. Same molecule, same factory.The US private-pay price for tirzepatide can buy 11 months of the international generic.WAC is what manufacturers tell wholesalers it costs. Cash is what you pay at the counter. They are not the same number.No insurance? Welcome to the markup index.If you can name three pharmacies that sell modafinil for under $40, congratulations, you read this site.Avanafil 100mg PMI 49.8 - $80 US vs $40 internationalArmodafinil 150mg PMI 47.8 - $50 US vs $26 internationalTirzepatide 5mg (weekly) PMI 36.9 - $1,069 US vs $674 internationalSildenafil costs 97% less if you cross a border. The molecule is the same. The molecule does not care.GoodRx coupon is still a markup. A smaller one. But still.Cost Plus Drugs charges $0.14 a pill for finasteride. CVS charges $4.95. Same molecule, same factory.The US private-pay price for tirzepatide can buy 11 months of the international generic.WAC is what manufacturers tell wholesalers it costs. Cash is what you pay at the counter. They are not the same number.No insurance? Welcome to the markup index.If you can name three pharmacies that sell modafinil for under $40, congratulations, you read this site.

About the Index

Editorial . anonymous by design

Who runs this

Rx Price Tracker is published by an anonymous editorial team. We do not name individual authors. The project is intentionally pseudonymous because the questions it asks about US drug pricing intersect with regulated industries, and the value of the work depends on its independence from any one operator. Every entry on this site is collectively edited and signed off as a publication.

What we track

We compute and publish a single monthly index, the Mispricing Index, PMI, that measures the gap between US private-pay prescription prices and licensed international generic equivalents. We do this molecule by molecule, with full sourcing notes, and re-publish on the first of every month.

We do not dispense, sell, broker, or facilitate the purchase of any medication. We are a data publication.

How we fund this

Self-funded. No advertising. No sponsorships. No affiliate commissions. No pharmaceutical, PBM, insurer, or telehealth funding of any form. We do not accept gifts from any party with a commercial interest in US drug pricing. We accept no editorial direction from any vendor we sample for international price data, including but not limited to AllDayChemist, Inhousepharmacy, Sun Pharma export portal, and PHARMAX, all of which appear in our source lists strictly as observable retail price data.

No ads. No sponsors. No agenda. The same line that appears on every page of this site is operative policy, not slogan.

Contact

Email only. No phone, no street address for editorial, no walk-in. Reply to any monthly update or write to editor at rxpricetracker.com. Press, researchers, and corrections welcome.

Note. The PHARMAX P.O. Box that appears in CAN-SPAM compliance footers of our outbound emails is the legal sender address for the email list provider, not the editorial team's address. The editorial team is intentionally not publicly located.

Editorial mission

The cost of being a US cash-pay consumer of prescription medication should be visible in one number. We compute that number, publish the sourcing, and refuse to monetise the audience that finds it useful. That is the entire mission.

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Publisher's note. Rx Price Tracker is funded by PHARMAX, one of the international pharmacies whose prices we publish on this page. PHARMAX does not control which molecules we cover, which competitors we include, or which corrections we issue. Every price observation links to its source URL and capture date. The data is reproducible. We track the gap because pricing transparency works in any direction.