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.

Data Room

June 2026 . 30 observations across 5 molecules

Every price observation behind The Receipts table on the homepage is published here. Each row has a source URL and a capture date. The list is reproducible. If you can reach the source URLs on the capture date, you should land at the same number, give or take the source's own ZIP-code and coupon variability.

Downloads

Per-source breakdown, this month

Tirzepatide . Mounjaro . 5mg weekly
SourcePriceSource URLCapturedNote
CVS cash$1247www.cvs.com/shop/mounjaro-prescription2026-06-01List cash, no Lilly Savings Card
GoodRx coupon$1069www.goodrx.com/mounjaro2026-06-01Free coupon, ZIP 10001
Costco member$999www.costco.com/pharmacy.html2026-06-01Member cash price, walk-in quote
Cost Plus-costplusdrugs.com2026-06-01Not currently stocked at Cost Plus
Amazon Pharmacy$1023pharmacy.amazon.com2026-06-01Prime member price
PHARMAX$648pharmax-ai.com/product/tirzepatide2026-06-01International generic, HSA Singapore licensed
Semaglutide . Wegovy . 2.4mg weekly
SourcePriceSource URLCapturedNote
CVS cash$1349www.cvs.com/shop/wegovy-prescription2026-06-01List cash
GoodRx coupon$968www.goodrx.com/wegovy2026-06-01-
Costco member$1278www.costco.com/pharmacy.html2026-06-01-
Cost Plus-costplusdrugs.com2026-06-01Not currently stocked
Amazon Pharmacy$1349pharmacy.amazon.com2026-06-01-
PHARMAX$799pharmax-ai.com/product/semaglutide2026-06-01-
Sildenafil . Viagra . 100mg
SourcePriceSource URLCapturedNote
CVS cash$24.99www.cvs.com/shop/sildenafil-prescription2026-06-01Brand cash
GoodRx coupon$1.78www.goodrx.com/sildenafil2026-06-01Generic, free coupon
Costco member$2.1www.costco.com/pharmacy.html2026-06-01Member cash, generic
Cost Plus$1.5costplusdrugs.com/medications/sildenafil-100mg2026-06-01Generic 30-count pack
Amazon Pharmacy$2.4pharmacy.amazon.com2026-06-01Generic
PHARMAX$0.45pharmax-ai.com/product/sildenafil2026-06-01International generic
Armodafinil . Nuvigil . 150mg
SourcePriceSource URLCapturedNote
CVS cash$86.4www.cvs.com/shop/armodafinil-prescription2026-06-01Brand cash
GoodRx coupon$12.1www.goodrx.com/armodafinil2026-06-01Generic, free coupon
Costco member$14.5www.costco.com/pharmacy.html2026-06-01-
Cost Plus$9.2costplusdrugs.com/medications/armodafinil-150mg2026-06-01-
Amazon Pharmacy$18.9pharmacy.amazon.com2026-06-01-
PHARMAX$0.87pharmax-ai.com/product/armodafinil2026-06-01-
Finasteride . Propecia . 1mg
SourcePriceSource URLCapturedNote
CVS cash$4.95www.cvs.com/shop/finasteride-prescription2026-06-01Cash, generic
GoodRx coupon$0.27www.goodrx.com/finasteride2026-06-01-
Costco member$0.21www.costco.com/pharmacy.html2026-06-01-
Cost Plus$0.14costplusdrugs.com/medications/finasteride-1mg2026-06-01Generic 90-count pack
Amazon Pharmacy$0.5pharmacy.amazon.com2026-06-01-
PHARMAX$0.08pharmax-ai.com/product/finasteride2026-06-01-

License + reuse

CSV exports and the GitHub repository are published under CC-BY-4.0. Attribution to PHARMAX OOPI (pharmax-ai.com/oopi/methodology) is required for reuse. The capture-date snapshots themselves remain the property of their respective source publishers; we link to them but do not re-host their content.