Webjul 1, 2024 · when taking benzonatate, it's important to be aware of potential drug interactions. This medication may interact with certain antibiotics, antifungal. Webbenzonatate and promethazine dm drug interactions. The phase iv clinical study analyzes what interactions people have when they take benzonatate and promethazine. Webdrug interactions between promethazine and tessalon perles. This report displays the potential drug interactions for the following 2 drugs: Webwhat are the 3 types of drug interactions? This is when a medication reacts with one or more other drugs. For example, taking a cough. Webcompare benzonatate and promethazine side effects, costs and risks for treating cough and skin allergy.