Enzymatic Therapy Bronchial Soothe 120 Milliliter (4.05 FL Ounces) Syrup. Pack of 1. Why is ivy leaf so beneficial for your system: Ivy leaf is a traditional ingredient used for centuries to support bronchial health. Why use Bronchial Soothe: It supports lung and bronchial passageway health. It's for your entire family. Unlike alcohol-based syrups, the ingredients in Bronchial Soothe provide support for the whole family. This non-drowsy formula is well-tolerated in children, too.