$ cat molecule-index.md

# Molecule Index

> Same ingredient. Different brand. Different country. Different price.

Source-backed medicine price notes for the drugs we can verify now; ingredient-first index for the rest.

100000 drug records20370 ingredient keys27,632 molecules41 source-backed drugs84 source rows157,384 label recordsUS first price order

$ grep "Sodium Fluoride, Sodium Chloride" --drug-index4 matches

Sodium Fluoride, V
  o--o
   \/
   /\
  o--o

:| molecule · DailyMed SPL index

Sodium Fluoride, Vitamin A Acetate, Sodium Ascorbate, Cholecalciferol, .Alpha.-Tocopherol, D-, Thiamine Hydrochloride, R · Oral

▄▇███▆▃ ▂▅supplement-or-medical-food · price not live yet

Calcium Fluoride, 
  o--o
   \/
   /\
  o--o

:| molecule · DailyMed SPL index

Calcium Fluoride, Calcium Phosphate, Carbon Disulfide, Dibasic Potassium Phosphate, Sodium Chloride · Oral

██▇▆▅▅▄▃▂▂ human-drug-label · price not live yet

Sodium Chloride, H
  o--o
   \/
   /\
  o--o

:| molecule · DailyMed SPL index

Sodium Chloride, Hydrated Silica, Sodium Fluoride, Tocopheryl Acetate · Oral

█▇▇▆▆▅▄▃▃▂▂ human-drug-label · price not live yet

Sodium Fluoride, S
  o--o
   \/
   /\
  o--o

:| molecule · DailyMed SPL index

Sodium Fluoride, Sodium Chloride · Oral

██▇▆▆▅▄▃▃▂ human-drug-label · price not live yet

$ cat method.md

Ingredient first, prices second

Index 100,000 drug/package records by active ingredient, brand, route, class hint, source, and risk/price-gap watch signals.

Attach daily country snapshots for US, Canada, UK, India, Mexico, and EU comparator markets.

Track pharmacy-level prices, coupons, cash-pay providers, generic availability, and verified substitution boundaries.