Last updated: 30th December, 2019 Mucinex is an over the counter (OTC) medication prescribed to relieve chest congestion in adults and children Twelve years of age and older. Mucinex belongs to a group of medicines called expectorants. Get to know how Mucinex works, its side effects, precautions, and contraindications where Mucinex is not suggested. Read about similar medication About Mucinex It relieves chest congestion, thins and loosens […]