FDA pharmacologic class
Mast Cell Stabilizer
2 medicines are in FDA's class of mast cell stabilizers: olopatadine (Pataday) and cromolyn (Gastrocrom); 1 combination product also contains one. 2 of the 3 are listed from generic labelers (FDA NDC Directory, October 8, 2026). The lowest pharmacy cost is cromolyn 100 mg/5 ml oral conc at $0.349 per mL (NADAC).
Which medicines are mast cell stabilizer?
| Medicine | Brand names | Generic labelers (all forms) | Pharmacy cost | Boxed warning | Shortage | Recalls since 2012 |
|---|---|---|---|---|---|---|
| Olopatadine | Pataday | 47 labelers | $2.96 per mL 0.2% eye drop | No | No current entry | 6 |
| Cromolyn | Gastrocrom | 10 labelers | $0.349 per mL 100 mg/5 mL oral conc | No | Listed; available | 3 |
| Mometasone and olopatadine | Ryaltris | none listed | $7.67 per gram 665-25 mcg spray | No | No current entry | 1 |
Source: FDA Established Pharmacologic Class (NDC Directory, openFDA); CMS NADAC of October 7, 2026; FDA shortages and recalls (FDA files October 8, 2026)
What do pharmacies pay?
Each medicine's most widely listed form, per unit, in the NADAC survey: what pharmacies paid, not what a patient pays; strengths differ, so compare like with like.
Source: CMS National Average Drug Acquisition Cost (NADAC) survey, October 7, 2026: what retail pharmacies paid per unit; not a counter price