Contact by superadmin August 25, 2022 Office Address: 10 Post Office Sq. 8th Fl South Boston MA 02109 USA Email Address: info@guaifenesin.org Phone Number: 800-846-5525 Guaifenesin is an FDA approved over-the-counter expectorant, usually taken orally to assist the expectoration of phlegm and mucus. Especially effective to help clear excess mucus and phlegm from the airways in acute respiratory tract infections. Share FacebookTwitterPinterestEmail
