Extended release tablets provide 12 HOURS OF RELIEF from both cough and congestion with just one dose, so you can enjoy the day or night however you choose Powerful COUGH SUPPRESSANT (dextromethorphan HBr) to help reduce the urge to cough, and COUGH EXPECTORANT (guaifenesin) to thin and loosen your phlegm and mucus congestion Its never just a cough, so get FAST AND EFFECTIVE relief from your cough symptoms for 12 hours This first 12-hour MAXIMUM-STRENGTH Mucus and Cough relief tablet from Robitussin not only works to control your cough, but it also thins and loosens mucus to send cough and cold symptoms packing Available in 4ct, 8ct, and 16ct tablets so youre free from cough and chest congestion 0 Capsule Every 12 Hours