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Is Guaifenesin vegetarian?

Guaifenesin

Vegetarian Vegetarian
Vegan Vegan

Guaifenesin is a synthetic expectorant drug derived from guaiacol, commonly used to loosen mucus and thin respiratory secretions. It is manufactured synthetically for pharmaceutical use.

Also known as 1,2-Propanediol, 3-(2-methoxyphenoxy)-, guaifenesin
INCI name Guaifenesin
CAS number 93-14-1
EC number 202-222-5
CosIng ID 28449
Last reviewed 9 July 2026

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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