GASTROCROM 100 MG/5 ML CONC
FDA nonproprietary name: cromolyn sodium
For 480 mL
Pharmacies pay
$1,167.59 filed
480 × $2.43248 per ML
CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. 2026-09-23 · as of 2026-10-14 · retrieved 2026-10-17
Medicare Part D paid
$1,060.89 filed
480 × $2.21018 per ML, Part D average
Medicare's price is not your price.
Medicare Part D · DSD_PTD_RY26_P04_V10_DY24_BGM.csv · eff. 2024-01-01 to 2024-12-31 · as of 2026-06-25 · retrieved 2026-10-18
The spread
0.91× estimated
Medicare paid 9% less than pharmacies pay.
Part D averages every strength and form sold under “Gastrocrom” / “Cromolyn Sodium” into one figure, so it is not specific to this NDC.
OpenBill calculation · DSD_PTD_RY26_P04_V10_DY24_BGM.csv + nadac-national-average-drug-acquisition-cost-20261014.csv · NADAC eff. 2026-09-23 (file of 2026-10-14, retrieved 2026-10-17) · Part D 2024-01-01 to 2024-12-31 (file of 2026-06-25, retrieved 2026-10-18)
Cost-plus estimate
$1,347.73 estimated
$1,167.59 + $175.14 (15%) + $5.00 fee per fill = $1,347.73
This is a model, not a price any pharmacy quoted. Shipping is not included. How it is worked out
OpenBill calculation · nadac-national-average-drug-acquisition-cost-20261014.csv · NADAC eff. 2026-09-23 (file of 2026-10-14, retrieved 2026-10-17)
Open the interactive card Change the quantity, type what you were charged, and see every record in full.
What it is
GASTROCROM 100 MG/5 ML CONC is how the CMS NADAC file names this product. The FDA NDC Directory lists it as cromolyn sodium, under the trade name “Gastrocrom”.
FDA gives its dosage form as liquid and its route as oral.
The labeler, the company named on the label, is Viatris Specialty LLC.
FDA’s Established Pharmacologic Class for it is Mast Cell Stabilizer.
The NADAC file of 2026-10-14 prices it under one NDC (National Drug Code), 00037-0678-96.
NADAC classes it as a brand-name drug (rate-setting class B), and does not mark it as sold over the counter.
What pharmacies pay
Pharmacies pay $1,167.59 for 480 mL (480 × $2.43248 per ML, rounded to the cent), by the CMS NADAC file of 2026-10-14; that price took effect on 2026-09-23. That is what pharmacies pay their suppliers, not what they charge you.
NADAC’s explanation codes for it: 1, calculated from the most recently completed pharmacy survey; 5, calculated based on package size.
NADAC also lists, on the row of one brand NDC, what pharmacies pay for the generic equivalent, a different product: $0.34899 per ML filed.
CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. 2026-09-23 · as of 2026-10-14 · retrieved 2026-10-17
What NADAC measures · NADAC explanation codes
The NDC
- 00037-0678-96 · Viatris Specialty LLC · $2.43248 per ML · eff. 2026-09-23 filed
Other strengths, forms and brands
3 other products in the NADAC file share the FDA nonproprietary name cromolyn sodium with GASTROCROM 100 MG/5 ML CONC.
| Product | Pharmacies pay per unit | Medicare per unit |
|---|---|---|
| CROMOLYN 4% EYE DROPS | $0.59532 per ML filed | We don’t know yet |
| CROMOLYN 20 MG/2 ML NEB SOLN | $0.96262 per ML filed | $0.385 per ML derived |
| CROMOLYN 100 MG/5 ML ORAL CONC | $0.34899 per ML filed | $1.23192 per ML filed |
| GASTROCROM 100 MG/5 ML CONC this page | $2.43248 per ML filed | $2.21018 per ML filed |
Part D is one average per brand and generic name, over every strength and form.
CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. 2026-09-23 · as of 2026-10-14 · retrieved 2026-10-17
Medicare Part D · DSD_PTD_RY26_P04_V10_DY24_BGM.csv · eff. 2024-01-01 to 2024-12-31 · as of 2026-06-25 · retrieved 2026-10-18
OpenBill calculation · october-2026-medicare-part-b-payment-limit-files-final.zip + october-2026-ndc-hcpcs-crosswalk-final.zip · Part B limit 2026-10-01 to 2026-12-31 (file of 2026-09-17, retrieved 2026-10-18) · Part B crosswalk 2026-10-01 to 2026-12-31 (file of 2026-09-17, retrieved 2026-10-18)
Compared with its class
Its NADAC price is $2.43248 per ML filed.
Of the 14 other products in FDA’s Mast Cell Stabilizer class priced per ML, 6 have a higher middle NADAC price and 8 a lower one. The one in the middle is OLOPATADINE HCL 0.1% EYE DROPS, at $1.27369 per ML filed (eff. 2026-09-23).
Prices are compared per unit, whatever the strength or dose, and a class is not a list of substitutes.
CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. 2026-09-23 · as of 2026-10-14 · retrieved 2026-10-17
What Medicare paid
Medicare Part D paid $1,060.89 for 480 mL, at an average of $2.21018 per ML in 2024 (2024-01-01 to 2024-12-31) for “Gastrocrom” and “Cromolyn Sodium”, every strength and form sold under that name together (Medicare Part D Spending by Drug, file of 2026-06-25).
That average covers 291 Part D claims (fills, including refills) for 2024-01-01 to 2024-12-31, across every maker, strength and form under the name.
Medicare's price is not your price.
What Part D spending measures · Which Medicare figure OpenBill compares · How the spread is worked out
What to ask at the counter
None of these figures is your price: what you pay depends on your pharmacy, your insurance, coupons and discounts.
- What is your cash price for 480 mL? Is it lower than what I would pay through my insurance?
- How much is in the package I am getting? This page uses 480 mL; your package may hold a different amount.
- If you have Medicare Part D: what is my plan’s copay or coinsurance for it? The Part D average on this page is not what you pay.
- These are questions about price, not medical advice. Do not change or stop a medicine without talking to your prescriber or pharmacist.
Questions
- Why is the comparison with Medicare for GASTROCROM 100 MG/5 ML CONC labelled estimated?
- Beyond what the card shows, the records give these reasons: The Part D figure covers 2024-01-01 to 2024-12-31; the NADAC price is from the file of 2026-10-14. Part D spending basis, as the Part D record states it: Part D 2024 average spend per dosage unit for Gastrocrom / Cromolyn Sodium: all makers, strengths, forms and routes combined, claim-weighted; gross cost incl. dispensing fees and patient pay, before rebates. Unit taken as NADAC's ML. Joined on brand name.
- Why does this page start at 480 mL?
- NADAC prices this product per ML. The FDA NDC Directory’s package description gives 480 mL in one package for this product’s NDC (“12 POUCH in 1 CARTON (0037-0678-96) / 8 AMPULE in 1 POUCH (0037-0678-08) / 5 mL in 1 AMPULE”), so the card starts at one package: 480 ML. Change it to match your prescription.