Cough Suppressant Relieves Coughs due to Colds, Bronchial Irritations Original Flavor Since 1920 How Creomulsion Cough Medicine Works: Creomulsion Cough Medicine contains a safe and effective cough suppressant which acts by temporarily calming the cough control center to relive coughs. Its rich, traditional base coats and soothes raw, irritated membranes. It contains no dyes, no alcohol, and no artificial sweeteners.