FDA pharmacologic class
Expectorant
1 medicine is in FDA's class of expectorants: guaifenesin (Mucinex); 3 combination products also contain one. 3 of the 4 are listed from generic labelers (FDA NDC Directory, October 8, 2026). The lowest pharmacy cost is ft tussin dm 200-20 mg/20 ml at $0.0207 per mL (NADAC).
Which medicines are expectorant?
| Medicine | Brand names | Generic labelers (all forms) | Pharmacy cost | Boxed warning | Shortage | Recalls since 2012 |
|---|---|---|---|---|---|---|
| Dextromethorphan and guaifenesin | Mucinex | 58 labelers | $0.0207 per mL 200-20 mg/20 mL | No | No current entry | 1 |
| Guaifenesin | Mucinex, Mucus | 91 labelers | $0.284 per tablet 600 mg tablet | No | No current entry | 6 |
| Guaifenesin and pseudoephedrine | Mucinex | 28 labelers | $0.384 per unit 600-60 mg | No | No current entry | 0 |
| Dextromethorphan and guaifenesin and naproxen | Mucinex | none listed | n/a | No | No current entry | 0 |
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