A deep penetrating cough medicine that provides fast soothing relief from chesty coughs, allowing you to get on with your day'. '.strtoupper('b')enylin chesty cough original contains diphenhydramine hydrochloride an expectorant to help to loosen and expel mucus'. '.strtoupper('l')evomenthol helps to ease congestion and relieve stuffy noses.even after your cold or flu has gone, sometimes a cough can persist for quite some time afterwards'. '.strtoupper('t')his can be truly debilitating, uncomfortable and can affect your daily life'. '.strtoupper('b')y using a benylin cough syrup, the symptoms of a mucus, chesty or dry cough can be instantly soothed and relieved.who can take benylin adults should take two 5ml doses four times a day'. '.strtoupper('c')hildren aged 6 12 years and over should take one 5ml spoonful four times a day'. '.strtoupper('n')ot recommended for children under 6 years old.