Pack of 4 for the UPC: 363824008400 Mucinex in. Mucus out.ExpectorantReckittActive Ingredients:1 Tablet: Guaifenesin 600 mgDo not crush, chew, or break tablet. Take with a full glass of water. This product can be administered without regard for the timing of meals. Adults and children 12 years of age and over: 1 or 2 tablets every 12 hours. Do not exceed 4 tablets in 24 hours. Children under 12 years of age: Do not use. Other Information: Store between 20-25°C (68-77°F).Inactive Ingredients:Carbomer 934P, NF; FD&C Blue #1 Aluminum Lake; Hypromellose, USP; Magnesium Stearate, NF; Microcrystalline Cellulose, NF; Sodium Starch Glycolate, NFUses:Helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs more productive. Relieves chest congestion. Thins and loosens mucus for 12 hours.Do not use: For children under 12 years of age. Ask a doctor before use if you have: Persistent or chronic cough such as occurs with smoking, asthma, chronic bronchitis, or emphysema. Cough accompanied by too much phlegm (mucus). Stop use and ask a doctor if: Cough lasts more than 7 days, comes back, or occurs with fever, rash, or persistent headache. These could be signs of a serious illness. If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.