Perrigo Co. PLCtakes one step forward in the OTC expectorant market with the first private label extended-release guaifenesin and pseudoephedrine tablets, but also a step backward in making a single-ingredient guaifenesin product.
Perrigo Ships Guaifenesin/PSE Tablets, But Single-Ingredient Snags Linger
Perrigo launches store brand Mucinex D, containing guaifenesin and PSE, manufactured by Allergan, but also suspends marketing its own guaifenesin product due to problems with an excipient used in the formula.