Oncor Guaifenesin Liquid is a cherry-flavored expectorant cough syrup that provides effective relief from chest congestion. Each 5 mL dose contains 100 mg of guaifenesin, the trusted expectorant that helps loosen mucus and thin bronchial secretions so coughs become more productive and breathing feels easier. This sugar-free, alcohol-free formula is gentle enough for daily use and safe for adults and children (ages 2+). Made in the USA and packaged in tamper-evident bottles, Oncor Guaifenesin delivers dependable relief without unnecessary ingredients like menthol or dextromethorphan (DM). Why Choose Oncor Guaifenesin Cough Syrup? - CHEST CONGESTION RELIEF – Helps loosen mucus and phlegm to clear airways - TRUSTED EXPECTORANT – 100 mg guaifenesin per 5 mL dose - SUGAR-FREE & ALCOHOL-FREE – Gentle, family-friendly formula - CHERRY FLAVOR – Smooth taste for easier dosing - VALUE SIZE – Large 16 fl oz bottle for extended use Oncor makes it easier to manage cough and chest congestion with a reliable, affordable generic expectorant.