Robitussin is a brand of cold and cough medicines produced by Wyeth Consumer Healthcare. The cough suppressant used in Robitussin cough formulations is dextromethorphan. The expectorant used alongside dextromethorphan in some products is guaifenesin, though their products marked for "congestion" may contain only guaifenesin.
Robitussin has various formulations. Robitussin CF is the original cold formula.
There is also a Sugar-Free Robitussin, which went on the market for the first time in 2001. This product is made by Whitehall-Robins Healthcare, located in Madison, New Jersey. Other than the lack of sugar, the ingredients are the same as in regular Robitussin.