Robitussin Maximum Strength Elderberry Cough Plus Chest Congestion DM Liquid is a chest congestion relief and cough medicine made with real elderberries for flavor. This non drowsy cough medicine utilizes the expectorant guaifenesin, as well as the cough suppressant dextromethorphan, to administer maximum-strength cough and chest congestion relief. This cough medicine and expectorant goes down quickly with the great taste of real elderberry, and helps you get on with your day. As soon as you start to feel that tickle of a cough and build-up of mucus, pour yourself 20 mL and let the formula do the rest. Continue taking this non drowsy cough suppressant for adults every four hours while symptoms persist. Do not take more than 6 doses in any 24-hour period. A versatile and effective non drowsy cough medicine, this Robitussin expectorant helps relieve chest congestion. Delivering cough relief for more than 70 years, Robitussin has the product you need to treat your specific cough symptoms for day and night relief. Satisfaction Guarantee If for any reason you are not satisfied with any GSK Consumer Healthcare product, GSK Consumer Healthcare will provide you with a reimbursement within 45 days of the date of purchase. Please note that because GSK is unable to control the quality of our products sold by unauthorized sellers, the Guarantee is not available for products purchased from unauthorized sellers due to potential quality issues outside GSK's control. Please contact GSK Consumer Healthcare directly for more information.