Benylin Mucus Cough & Cold All-in-One Relief Tablets provide comprehensive comfort from heavy head cold and influenza-related mucus symptoms. Guaifenesin reduces and dislodges phlegm in your respiratory system, making it easier to expel. Paracetamol soothes discomfort and decreases a high temperature, while phenylephrine, a decongestant, tightens blood vessels in your nasal passageways, easing congestion and making it easier to breathe. It's suitable for adults and children aged 12 and over and contains phenylephrine hydrochloride, paracetamol, and guaifenesin.