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cromolyn sodium 100 mg/5mL Solution

by Mylan Pharmaceuticals Inc. · 12 POUCH in 1 CARTON (51525-0470-9) / 8 AMPULE in 1 POUCH (51525-0470-8) / 5 mL in 1 AMPULE
NDC 51525-0470-09
🏷️ FDA NDC (as labeled) 51525-0470-9 billing pads the package segment with a zero
Rx only Brand Discontinued Non-controlled ⚠ Discontinued by firm
🗂️ Data synced Jul 2, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →

This page is curated, coded, and maintained by

Compiled from public FDA, CMS, DailyMed, NADAC, and related drug data sources. Editorial policy

⚠️
Excluded from the active FDA NDC Directory. The labeler reported this product as discontinued, so it is excluded from the active NDC Directory. The listing was last certified through Jun 2026. A label may still appear on DailyMed, but the NDC is no longer in the current FDA NDC Directory. Search the FDA NDC Directory ↗

🆔 Identity & classification

FDA NDC (as labeled) 51525-0470-9
Product NDC 51525-0470
11-digit billing NDC 51525047009
NCPDP billing unit ML — per mL (volume)
RxCUI 831261
UNII Q2WXR1I0PK
Application # NDA020479
SPL Set ID fbefd5bd-668a-4d10-b93e-a2e3fc5dddbd
Established class (EPC) Mast Cell Stabilizer
Physiologic effect Decreased Histamine Release
DEA schedule Non-controlled
Marketing category NDA AUTHORIZED GENERIC
Marketing status Discontinued
FDA listing status Discontinued by firm (certified through Jun 2026)
Marketing start 2015-10-21
Marketing end 2026-06-30
Route ORAL
Dosage form SOLUTION
Substance CROMOLYN SODIUM
GPI-14 52160015101320
GPI class Cromolyn Sodium
GCN Seq No 025061
GCN 16925
HICL code 004526
Ingredient (HICL) Cromolyn Sodium
HIC1 code Z
Therapeutic class — broad (HIC1) Body As A Whole
HIC2 code Z2
Therapeutic class — intermediate (HIC2) Antihistamines, Antiserotonins, Immunosuppressants
HIC3 code Z2F
Therapeutic class — specific (HIC3) Mast Cell Stabilizers
AHFS code 48:10.32.00
AHFS class Mast-Cell Stabilizers
FDB label name CROMOLYN 100 MG/5 ML ORAL CONC
FDB brand name Cromolyn Sodium
Legend status F — Federal legend — prescription drug or device
TE code (Orange Book) AA · RLD · RS
Why two NDCs? The FDA registers this code as 51525-0470-9 — a 5-4-1 layout, and that's what's printed on the package and shown on DailyMed. For insurance claims, every NDC is standardized to a uniform 11-digit 5-4-2 format by adding a zero to the package segment → 51525-0470-09. Same drug, same package — only the format differs.
Where does this data come from?
Identifiers from the FDA openFDA NDC Directory and Structured Product Labeling; RxCUI from RxNorm (NLM); GPI from Medi-Span; GCN / HIC / AHFS / legend from First Databank.

🏷️ RxNorm drug class

This medicine belongs to the Mast Cell Stabilizer class.

Pharmacologic class Mast Cell Stabilizer
Drug family (ATC) Antiallergic agents, excl. corticosteroids, Agents for dermatitis, excluding corticosteroids, Antiallergic agents, excl. corticosteroids
Where does this data come from?
Therapeutic classes from RxNorm RxClass (U.S. National Library of Medicine) — Established Pharmacologic Class (FDA), ATC drug family (WHO) and mechanism of action, matched by this product’s RxCUI.

🏭 Manufacturer & labeler

LabelerMylan Pharmaceuticals Inc.
Application holderVIATRIS SPECIALITY LLC
FDA applicationNDA020479 (NDA AUTHORIZED GENERIC)
Labeler code51525
First marketedOct 2015
Product typeHuman Prescription Drug
Portfolio473 products on file
The labeler markets the product; the application holder owns the FDA approval. They’re often the same company but can differ (e.g. a repackager or an authorized generic). A mailing address / phone appears here when the manufacturer includes it in the product’s FDA label (not all do).
Where does this data come from?
Labeler, application holder and registered establishment from the FDA openFDA NDC Directory and Drugs@FDA; address/contact from the product’s FDA label.

🩺 Clinical

Label name CROMOLYN 100 MG/5 ML ORAL CONC Ingredient Cromolyn Sodium
Where does this data come from?
Plain-language summary from MedlinePlus (U.S. National Library of Medicine); supplement & herbal interactions and nutrient depletion data from the Natural Medicines database; our full guide is HelloPharmacist editorial content.

🧪 Inactive Ingredients / Excipients

Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.

Loading inactive ingredients from the official FDA label in the background. No external source is being called by this page request.
Where does this data come from?
Source: official FDA Structured Product Labeling (SPL) via DailyMed and the openFDA label index. Structured IACT rows and label-wide narrative are kept separate; availability and product-level specificity depend on the submitted label.

Inactive ingredient FAQ

Are inactive ingredients the same for every manufacturer?
No. Inactive ingredients can differ by manufacturer, dosage form, strength, and package / product version.
Why might an inactive ingredient be missing?
Some SPLs do not provide a complete structured inactive-ingredient list, and older or unusual labels may only include the information in narrative text.
Can inactive ingredients matter?
Yes. They can matter for allergies, intolerances, dyes, gluten / lactose concerns, preservatives, and formulation differences — but confirm with a pharmacist or the manufacturer when it’s clinically important.

💲 Pricing

A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.

Price systemPer mLPer package
Retail pharmacies payNADAC · weekly $0.331 $158.69 / 480 ml
Medicaid paysCMS SDUD · 12 mo No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data.
Medicare drug plans payPart D · quarterly No Part D plan price is available for this NDC in our data.
NADAC price history (per mL) — tap or hover for the price & month
Dec 2021 May 2022 Nov 2022 Jun 2026 $0.483 $0.249
▼ Down 27% over the last 18 months.
Where does this data come from?
NADAC (National Average Drug Acquisition Cost) is the CMS weekly pharmacy-acquisition-cost survey — what pharmacies pay. ASP (Average Sales Price) is the CMS Medicare Part B drug-payment file, published quarterly. Medicaid pays is computed by us from CMS State Drug Utilization Data (total reimbursed ÷ units, trailing 12 months) — gross of rebates and inclusive of dispensing fees, so it reflects what Medicaid paid, not an acquisition cost. Medicare drug plans pay is the median negotiated point-of-sale unit cost across plans listing this NDC in the CMS quarterly Prescription Drug Plan pricing files, before rebates. The VA pays is the federal contract price (FSS, and the statutory Big 4 ceiling where listed) from the VA National Acquisition Center pharmaceutical price file. All are free public government data; each measures a different payer, so the figures are not directly comparable.

🔁 Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
cromolyn sodium 100 mg/5mLthis 51525-0470-09 Mylan 12 pouches $0.331 AA Discontinued —
Cromolyn Sodium 100 mg/5mL 16571-0600-96 Rising 12 pouches $0.336 AA Availability likely +2%
Cromolyn Sodium 100 mg/5mL 42571-0132-52 Micro 8 ampules $0.336 AA Availability likely +2%
Cromolyn Sodium Oral Solution (Concentrate) 100 mg/5mL 76204-0025-96 Ritedose 12 pouches $0.336 AA Discontinued +2%
Cromolyn Sodium 100 mg/5mL 81665-0104-96 Omnivium 12 pouches $0.336 AA Availability likely +2%
Gastrocrom 20 mg/mL 00037-0678-96 Viatris 12 pouches $2.432 AA Availability likely +636%
About this product: this is an authorized generic — the brand-name product marketed without its brand name. Other versions are listed above, least expensive first.
Where does this data come from?
Equivalents are other NDCs of the same ingredient, form and route from the openFDA NDC Directory, ranked least-expensive-first by NADAC. Therapeutic-equivalence (AB) ratings come from the FDA Orange Book; biologics use the FDA Purple Book for biosimilar & interchangeable status.

⏳ Availability & generic status

🏛️
2015
On the market since
Oct 2015
📍
2026
Currently FDA-listed
11 years listed
🔓
·
Generic versions listed
see equivalents
✅Generic appears available

FDA-approved generic versions are listed, and recent pricing/market data suggests they may be available — see Therapeutic equivalents.

Where does this data come from?
Patents and exclusivity from the FDA Orange Book (small-molecule drugs), refreshed from public FDA data. Generic launch timing is an estimate, not a guarantee.

📊 Medicare Part D spend CMS · PART D · 2026 (Q1)

Medicare Part D (outpatient prescription) spending for Cromolyn Sodium — the program that covers self-administered drugs. 7 manufacturers.
⚠️ Drug-level data: CMS publishes Part D spending by drug, not by NDC — these figures combine every manufacturer, strength and package size sold under the name Cromolyn Sodium. That’s a different level of aggregation than the Medicaid card above, which is specific to this exact 11-digit NDC (pack size included), so the two aren’t directly comparable.
Period
Total Part D spend
$3.73M
Claims incl. refills
26.3K
Beneficiaries
18.7K
Spend / beneficiary
$199.42
Spend / claim
$142.02
Trend by period
💵 About the dollar figures: spending is what Part D plans paid before confidential manufacturer rebates, so the program’s real net cost is lower. A blank patient count means fewer than 11 people — CMS hides counts that small to protect privacy. Source: CMS Medicare Quarterly Part D Spending by Drug (data.cms.gov), updated quarterly.

🔬 Reported adverse events (FAERS)

Read carefully: FAERS reports are voluntary and unverified. Counts are not incidence, do not establish causation, are subject to reporting bias, and cannot be used to compare one drug to another. Shown for signal context only. Reports for Cromolyn sodium — the ingredient across all brands.

Top reported reactions

Treatment Failure1,005
Fatigue226
Nausea197
Headache189
Diarrhoea163
Dyspnoea158
Urticaria146

Age at onset

Neonate1
Infant2
Child26
Adolescent24
Adult429
Elderly127

Reporter sex

3,585 reports
Male · 27%
Female · 73%
Unknown · 0%

Serious outcomes

Hospitalization433
Disabling69
Life-threatening62
Death48
Reports over time (by year) — tap or hover for the count & year
2019 2021 2023 2026 1,119 0
Most recent year is provisional (FAERS lags ~3 months).
Where does this data come from?
Adverse-event reports from the FDA Adverse Event Reporting System (FAERS) via openFDA. FAERS reports are voluntary and unverified — counts are not incidence and don’t establish causation.

📦 Packaging — all sizes for this product

Package NDCDescription Marketing startStatus
51525-0470-09 You're viewing this 12 POUCH in 1 CARTON (51525-0470-9) / 8 AMPULE in 1 POUCH (51525-0470-8) / 5 mL in 1 AMPULE 2015-10-21 Discontinued by firm

🧭 About this NDC listing & data coverage

Finished prescription product No longer marketed (per FDA listing data)
What data is (and isn’t) available for this NDC — tap to expand
NDC identity (package / product / labeler codes) ✓ Available
Labeler ✓ Available
Product & package description ✓ Available
Marketing category & status ✓ Available
Active ingredient / dosage form / route ✓ Available
FDA label (SPL via DailyMed) ✓ Available
Package photos — Not published for this NDC No photo available yet for this listing.
Inactive ingredients (structured) — Not published for this NDC The labeler did not submit a structured excipient list, or no SPL is available.
NADAC pharmacy acquisition price (CMS) ✓ Available
Orange Book / therapeutic-equivalence data ✓ Available
HCPCS J-code billing crosswalk — Not published for this NDC Most self-administered / retail products have no J-code — that is normal.
Medicaid utilization (CMS SDUD) — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold.
“Not published” reflects what the public FDA / CMS / NLM sources provide for this exact package code — it is a property of the data feeds, not a judgment about the product.

Questions about this listing

What does the discontinued status mean for this NDC?
The labeler reported a marketing end date (or the listing was delisted), so this specific package is no longer actively marketed. Remaining stock may still be dispensed for a time, and the NDC stays valid for historical records and claims — but data feeds (pricing, labeling) typically stop updating for it. Other package sizes or other manufacturers' versions of the same medication may still be marketed — see the equivalents section where available.
Is the NDC printed on the package the same as the 11-digit billing NDC?
Yes, they identify this exact package in different formats. The FDA registers it as 51525-0470-9, which is what is printed on the packaging and shown on DailyMed. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero: 51525-0470-09, written without dashes as 51525047009. The Identity section at the top of this page lists every form of this code.
What do the three segments of this NDC mean?
In 51525-0470-09, the first segment (51525) is the labeler code FDA assigned to Mylan Pharmaceuticals Inc.; the middle segment (0470) identifies this specific product — its ingredient, strength, and dosage form; and the last segment (09) identifies this exact package size and type. Together they name one specific package of one specific product.
Who lists this product with the FDA?
Mylan Pharmaceuticals Inc. is the labeler of record for this NDC — the company under whose FDA-assigned code the package is listed. The labeler may be the manufacturer itself or a distributor marketing the product under its own code.
Do I need a prescription for this product?
This NDC is listed with FDA as a prescription product, so it is dispensed under a prescriber's order. Your pharmacist can tell you whether any over-the-counter forms of the same medication exist.
This page identifies an FDA-listed package (the NDC) and reports public regulatory and pricing data about the listing. It is reference information, not a medical recommendation — talk to your pharmacist or prescriber about your own medication.
Where does this data come from?
Listing facts (marketing category, packager status, marketing dates) from the FDA openFDA NDC Directory; label availability from DailyMed; pricing coverage from CMS NADAC; equivalence scope from the FDA Orange Book.

📄 Full prescribing information FDA SPL

The complete FDA label for this product — the official prescribing information, verbatim, section by section. Jump with a chip, search within the label, or expand everything.
🎯 Indications and Usage ⏱️ Dosage and Administration ⛔ Contraindications ⚠️ Warnings 🤒 Adverse Reactions 🔄 Drug Interactions 🤰 Pregnancy 🧒 Pediatric Use 🧓 Geriatric Use 🧬 Clinical Pharmacology 📦 How Supplied / Storage and Handling 📋 Description
🎯 Indications and Usage 38 words ▾

INDICATIONS AND USAGE Cromolyn Sodium, USP is indicated in the management of patients with mastocytosis. Use of this product has been associated with improvement in diarrhea, flushing, headaches, vomiting, urticaria, abdominal pain, nausea, and itching in some patients.

⏱️ Dosage and Administration 194 words ▾

DOSAGE AND ADMINISTRATION NOT FOR INHALATION OR INJECTION. SEE DIRECTIONS FOR USE. The usual starting dose is as follows: Adults and Adolescents (13 Years and Older) Two ampules four times daily, taken one-half hour before meals and at bedtime.

Children 2-12 Years One ampule four times daily, taken one-half hour before meals and at bedtime. Pediatric Patients Under 2 Years Not recommended. If satisfactory control of symptoms is not achieved within two to three weeks, the dosage may be increased but should not exceed 40 mg/kg/day.

Patients should be advised that the effect of Cromolyn Sodium, USP therapy is dependent upon its administration at regular intervals, as directed. Maintenance Dose Once a therapeutic response has been achieved, the dose may be reduced to the minimum required to maintain the patient with a lower degree of symptomatology. To prevent relapses, the dosage should be maintained.

Administration Cromolyn Sodium, USP should be administered as a solution at least 1/2 hour before meals and at bedtime after preparation according to the following directions: 1. Break open ampule(s) and squeeze liquid contents of ampule(s) into a glass of water. 2.

Stir solution. 3. Drink all of the liquid.

⛔ Contraindications 16 words ▾

CONTRAINDICATIONS Cromolyn Sodium, USP is contraindicated in those patients who have shown hypersensitivity to cromolyn sodium.

⚠️ Warnings 27 words ▾

WARNINGS The recommended dosage should be decreased in patients with decreased renal or hepatic function. Severe anaphylactic reactions may occur rarely in association with cromolyn sodium administration.

🤒 Adverse Reactions ~1 min read ▾

ADVERSE REACTIONS Most of the adverse events reported in mastocytosis patients have been transient and could represent symptoms of the disease. The most frequently reported adverse events in mastocytosis patients who have received Cromolyn Sodium, USP during clinical studies were headache and diarrhea, each of which occurred in 4 of the 87 patients. Pruritus, nausea, and myalgia were each reported in 3 patients and abdominal pain, rash, and irritability in 2 patients each.

One report of malaise was also recorded. To report SUSPECTED ADVERSE REACTIONS, contact Wallace Pharmaceuticals Inc. at 1-877-999-8407 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . Other Adverse Events: Additional adverse events have been reported during studies in other clinical conditions and from worldwide postmarketing experience.

In most cases the available information is incomplete and attribution to the drug cannot be determined. The majority of these reports involve the gastrointestinal system and include: diarrhea, nausea, abdominal pain, constipation, dyspepsia, flatulence, glossitis, stomatitis, vomiting, dysphagia, esophagospasm. Other less commonly reported events (the majority representing only a single report) include the following: Skin: pruritus, rash, urticaria/angioedema, erythema/ burning, photosensitivity Musculoskeletal: arthralgia, myalgia, stiffness/weakness of legs Neurologic: headache, dizziness, hypoesthesia, paresthesia, migraine, convulsions, flushing Psychiatric: psychosis, anxiety, depression, hallucinations, behavior change, insomnia, nervousness Heart Rate: tachycardia, premature ventricular contractions (PVCs), palpitations Respiratory: pharyngitis, dyspnea Miscellaneous: fatigue, edema, unpleasant taste, chest pain, postprandial lightheadedness and lethargy, dysuria, urinary frequency, purpura, hepatic function test abnormal, polycythemia, neutropenia, pancytopenia, tinnitus, lupus erythematosus (LE) syndrome

🔄 Drug Interactions 114 words ▾

Drug Interaction During Pregnancy In pregnant mice, cromolyn sodium alone did not cause significant increases in resorptions or major malformations at subcutaneous doses up to 540 mg/kg (approximately equal to the maximum recommended daily oral dose in adults on a mg/m 2 basis). Isoproterenol alone increased both resorptions and major malformations (primarily cleft palate) at a subcutaneous dose of 2.7 mg/kg (approximately 7 times the maximum recommended daily inhalation dose in adults on a mg/m 2 basis). The incidence of major malformations increased further when cromolyn sodium at a subcutaneous dose of 540 mg/kg was added to isoproterenol at a subcutaneous dose of 2.7 mg/kg.

No such interaction was observed in rats or rabbits.

🤰 Pregnancy 123 words ▾

Pregnancy In reproductive studies in pregnant mice, rats, and rabbits, cromolyn sodium produced no evidence of fetal malformations at subcutaneous doses up to 540 mg/kg in mice (approximately equal to the maximum recommended daily oral dose in adults on a mg/m 2 basis) and 164 mg/kg in rats (less than the maximum recommended daily oral dose in adults on a mg/m 2 basis) or at intravenous doses up to 485 mg/kg in rabbits (approximately 4 times the maximum recommended daily oral dose in adults on a mg/m 2 basis). There are, however, no adequate and well controlled studies in pregnant women.

Because animal reproduction studies are not always predictive of human response, this drug should be used during pregnancy only if clearly needed.

🧒 Pediatric Use 167 words ▾

Pediatric Use In adult rats no adverse effects of cromolyn sodium were observed at oral doses up to 6144 mg/kg (approximately 25 times the maximum recommended daily oral dose in adults on a mg/m 2 basis). In neonatal rats, cromolyn sodium increased mortality at oral doses of 1000 mg/kg or greater (approximately 9 times the maximum recommended daily oral dose in infants on a mg/m 2 basis) but not at doses of 300 mg/kg or less (approximately 3 times the maximum recommended daily oral dose in infants on a mg/m 2 basis).

Plasma and kidney concentrations of cromolyn after oral administration to neonatal rats were up to 20 times greater than those in older rats. In term infants up to six months of age, available clinical data suggest that the dose should not exceed 20 mg/kg/day. The use of this product in pediatric patients less than two years of age should be reserved for patients with severe disease in which the potential benefits clearly outweigh the risks.

🧓 Geriatric Use 84 words ▾

Geriatric Use Clinical studies of Cromolyn Sodium, USP did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.

🧬 Clinical Pharmacology 140 words ▾

CLINICAL PHARMACOLOGY In vitro and in vivo animal studies have shown that cromolyn sodium inhibits the release of mediators from sensitized mast cells. Cromolyn sodium acts by inhibiting the release of histamine and leukotrienes (SRS-A) from the mast cell. Cromolyn sodium has no intrinsic vasoconstrictor, antihistamine, or glucocorticoid activity.

Cromolyn sodium is poorly absorbed from the gastrointestinal tract. No more than 1% of an administered dose is absorbed by humans after oral administration, the remainder being excreted in the feces. Very little absorption of cromolyn sodium was seen after oral administration of 500 mg by mouth to each of 12 volunteers.

From 0.28 to 0.50% of the administered dose was recovered in the first 24 hours of urinary excretion in 3 subjects. The mean urinary excretion of an administered dose over 24 hours in the remaining 9 subjects was 0.45%.

📦 How Supplied / Storage and Handling 127 words ▾

HOW SUPPLIED Cromolyn Sodium, USP Oral Concentrate is an unpreserved, colorless solution supplied in a low density polyethylene plastic unit dose ampule with 8 ampules per foil pouch. Each 5 mL ampule contains 100 mg cromolyn sodium, USP, in purified water. NDC 51525-0470-8 8 ampules x 5 mL NDC 51525-0470-9 96 ampules x 5 mL Cromolyn Sodium, USP Oral Concentrate should be stored between 15°-30°C (59°-86°F) and protected from light.

Do not use if it contains a precipitate or becomes discolored. Keep out of the reach of children. Store ampules in foil pouch until ready for use.

Distributed by: Wallace Pharmaceuticals Inc. Canonsburg, PA 15317 U.S.A. Wallace and are trademarks of Wallace Pharmaceuticals Inc., a Viatris Company. © 2023 Viatris Inc.

Rev. 6/2023 STW-PRS7096-642R03 IN-0470-04 Wallace Logo

📋 Description 91 words ▾

DESCRIPTION Each 5 mL ampule of Cromolyn Sodium, USP contains 100 mg cromolyn sodium, USP, in purified water. Cromolyn sodium is a hygroscopic, white powder having little odor. It may leave a slightly bitter aftertaste.

Cromolyn Sodium, USP Oral Concentrate is clear, colorless, and sterile. It is intended for oral use. Chemically, cromolyn sodium is disodium 5,5’-[(2-hydroxytrimethylene)dioxy]bis[4-oxo-4H-1-benzopyran-2-carboxylate].

The empirical formula is C 23 H 14 Na 2 O 11 ; the molecular weight is 512.34. Its chemical structure is: Pharmacologic Category: Mast cell stabilizer Therapeutic Category: Antiallergic Cromolyn Sodium Structural Formula

Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA. Prefer the government’s original formatting? View this label on DailyMed ↗
← 51525-0115-01 · Mylan 51525-5901-01 · Mylan →
For educational and professional reference only — not medical advice. Pricing reflects published NADAC and CMS ASP (free public data) and may differ from your acquisition cost; always verify before billing or dispensing.