---
kind: "section"
citation: "21 C.F.R. § 341.18"
title: "21"
number: "341.18"
heading: "Expectorant active ingredient."
url: "https://uscodex.org/cfr/21/341.18"
---

# §341.18. Expectorant active ingredient.


The active ingredient of the product is guaifenesin when used within the dosage limits established in [§ 341.78(d)](/cfr/21/341.78.md?p=d).


## Notes

### Amendments

[54 FR 8509, Feb. 28, 1989]

### Authority

Authority: 21 U.S.C. 321, 351, 352, 353, 355, 360, 371.

### Amendments

[54 FR 8509, Feb. 28, 1989]