$ 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.
$ grep "Compound Double-Stranded Quaternary Ammonium Salt" --drug-index2 matches
Isopropanol And Co o--o \/ /\ o--o
:| molecule · DailyMed SPL index
Instant Hand Sanitizeing Wipe Cloth
Isopropanol And Compound Double-Stranded Quaternary Ammonium Salts · Oral
Compound Double-St o--o \/ /\ o--o
:| molecule · DailyMed SPL index
Jingchuang Chonggao Disinfectant
Compound Double-Stranded Quaternary Ammonium Salt · Oral
$ cat method.md
Ingredient first, prices second
Now
Index 100,000 drug/package records by active ingredient, brand, route, class hint, source, and risk/price-gap watch signals.
Next
Attach daily country snapshots for US, Canada, UK, India, Mexico, and EU comparator markets.
Later
Track pharmacy-level prices, coupons, cash-pay providers, generic availability, and verified substitution boundaries.