Cromolyn
/api/v1/drug/cromolynMechanism of action
Sourced from openFDAMechanism-of-action classes: Biological Response Modifiers; Ion Exchange Activity.
Indications
Sourced from openFDA- GASTROCROM 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.ICD-10: R11.2, R51.9
Contraindications
Sourced from openFDA- GASTROCROM is contraindicated in those patients who have shown hypersensitivity to cromolyn sodium.contraindicated
Dosage & administration
Sourced from openFDANOT 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 GASTROCROM 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 GASTROCROM 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.
Warnings & precautions
Sourced from openFDAThe 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
Sourced from openFDAMost 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 GASTROCROM 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 Meda Pharmaceuticals Inc. at 1-877-999-8406 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.
Use in specific populations
Sourced from openFDAPregnancy 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.
Approval history
Sourced from openFDA- Feb 29, 1996NDANDA020479Viatris Specialty
- Jun 16, 1999ANDAANDA075282Sandoz
- Jan 18, 2000ANDAANDA075271Teva Pharms
- Jul 3, 2001ANDAANDA075702Bausch And Lomb
- Oct 27, 2011ANDAANDA202583Rising
- Apr 4, 2013ANDAANDA202745Micro Labs Ltd India
- Oct 16, 2017ANDAANDA209264Ailex Pharms Llc
- Oct 16, 2017ANDAANDA209453Ailex Pharms Llc
FAERS reports
- 1Treatment Failure1,00429%
- 2Drug Ineffective3189.1%
- 3Fatigue2156.2%
- 4Nausea1895.4%
- 5Headache1835.2%
- 6Diarrhoea1584.5%
- 7Dyspnoea1514.3%
- 8Off Label Use1514.3%
- 9Urticaria1404.0%
- 10Dizziness1333.8%
- 11Hypersensitivity1313.8%
- 12Pruritus1273.6%
- 13Pain1223.5%
- 14Anaphylactic Reaction1163.3%
- 15Malaise1163.3%
Literature
Recent PubMed references pinned to Cromolyn as a MeSH major topic. Citations link to pubmed.ncbi.nlm.nih.gov.
- Disodium Cromoglycate Attenuates the Depressive-Like Behaviors in Mice by Inhibiting Neuroinflammation.CNS neuroscience & therapeutics · 2026 · Xiao Y, Liu K, Yuan Z, et al.PMID 41556446DOI 10.1002/cns.70721
- Pro-Tumorigenic Effect of Continuous Cromolyn Treatment in Bladder Cancer.International journal of molecular sciences · 2025 · Franković L, Degoricija M, Gabela I, et al.PMID 40004083DOI 10.3390/ijms26041619
- Cromolyn sodium reduces LPS-induced pulmonary fibrosis by inhibiting the EMT process enhanced by MC-derived IL-13.Respiratory research · 2025 · Tan C, Zhou H, Xiong Q, et al.PMID 39762844DOI 10.1186/s12931-024-03045-0
- Sodium cromoglycate exerts anti-pulmonary fibrosis effects by targeting the Keap1 protein to activate Nrf2 signaling.Bioorganic chemistry · 2024 · Liu X, Huang Y, Zhao X, et al.PMID 39556932DOI 10.1016/j.bioorg.2024.107961
- Mast Cells Mediate Acute Inflammatory Responses After Glenoid Labral Tears and Can Be Inhibited With Cromolyn in a Rat Model.The American journal of sports medicine · 2024 · Co CM, Vaish B, Hoang LQ, et al.PMID 39370677DOI 10.1177/03635465241278671
- Cromolyn sodium and masitinib combination inhibits fibroblast-myofibroblast transition and exerts additive cell-protective and antioxidant effects on a bleomycin-induced in vitro fibrosis model.Pharmacology research & perspectives · 2024 · Göksu AY, Dirol H, Kocanci FG, et al.PMID 39360479DOI 10.1002/prp2.70018
- A Quantity-Dependent Nonlinear Model of Sodium Cromoglycate Suppression on Beta-Conglycinin Transport.International journal of molecular sciences · 2024 · Zheng Z, Han J, Chen X, et al.PMID 38928351DOI 10.3390/ijms25126636
- Disodium Cromoglycate Templates Anisotropic Short-Chain PEG Hydrogels.ACS applied materials & interfaces · 2024 · Chen J, Luo YPMID 38885610DOI 10.1021/acsami.4c07181
Clinical trials
The 10 most recently updated of 33 ClinicalTrials.gov registrations naming Cromolyn as an intervention. Registration is not evidence of efficacy or safety — reference crosswalk only.
- PHENOGENE-1A (Cromolyn) Treatment in Patients With Mild to Moderate ALSRecruiting · Phase 2 · Interventional · 105 enrolled · PhenoNet, Inc.NCT07142291updated 2026-06-09
- Mast Cell Treatment in Post-tick Bite Illness (PTBI)Not yet recruiting · Phase 2 · Interventional · 50 enrolled · University of North Carolina, Chapel HillNCT07526558updated 2026-04-13
- Cromoglicate Adjunctive Therapy for Outpatients With SchizophreniaRecruiting · Phase 1 · Phase 2 · Interventional · 160 enrolled · Vishwajit Nimgaonkar, MD PhDNCT03794076updated 2026-03-19
- Re-challenge Immunotherapy With Cromolyn, TQB2102, and Panpulimab in Immune-Refractory Triple Negative Breast CancerNot yet recruiting · Phase 2 · Interventional · 46 enrolled · Fudan UniversityNCT07419880updated 2026-02-19
- Application of Ectoine Nasal Spray in Comparison With Cromolyn Sodium Containing Nasal Spray in Patients With Allergic RhinitisCompleted · Observational · 50 enrolled · Bitop AGNCT02131038updated 2026-01-29
- Reverse Triple Negative Immune Resistant Breast CancerRecruiting · Phase 2 · Interventional · 80 enrolled · Fudan UniversityNCT05076682updated 2025-12-03
- Novel Strategies for Reducing Burn Scar ItchRecruiting · Phase 3 · Interventional · 44 enrolled · The University of Texas Medical Branch, GalvestonNCT06801626updated 2025-09-24
- Cromoglicate in PsoriasisCompleted · Phase 2 · Interventional · 30 enrolled · LEO PharmaNCT01722812updated 2025-02-24
- Cromoglicate in MastocytosisTerminated · Phase 2 · Interventional · 7 enrolled · LEO PharmaNCT01701843updated 2025-02-24
- Mast Cells in Male Pelvic Pain and and Lower Urinary Tract DysfunctionCompleted · Early phase 1 · Interventional · 20 enrolled · Northwestern UniversityNCT03167216updated 2024-12-18
Frequently asked questions
- How does Cromolyn work?
- Mechanism-of-action classes: Biological Response Modifiers; Ion Exchange Activity.
- What is Cromolyn used for?
- According to FDA labeling, Cromolyn carries indications including: GASTROCROM 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.. This is a reference summary of labeled uses, not medical advice or a treatment recommendation.
- What class of drug is Cromolyn?
- Cromolyn is classified as Agents for dermatitis, excluding corticosteroids, Antiallergic agents, excl. corticosteroids, Other antiallergics, Mast Cell Stabilizer, Biological Response Modifiers, Ion Exchange Activity, Decreased Histamine Activity, Decreased Histamine Release, Decreased Leukotriene Activity.
- What are the brand names for Cromolyn?
- Cromolyn is marketed under brand names including Gastrocrom, Nasalcrom.
- What are the contraindications for Cromolyn?
- Cromolyn labeling lists contraindications including: GASTROCROM is contraindicated in those patients who have shown hypersensitivity to cromolyn sodium.. Always consult the full prescribing information and a clinician.
cromolyn is illustrative MVP content compiled from public sources. pharmacopeia is for educational and informational use only and is not a substitute for professional medical advice.