Interactions between your drugs. No interactions were found between mucinex dm and tessalon perles. However, this does not necessarily mean no. Weboct 2, 2023 · detailed dosage guidelines and administration information for tessalon (benzonatate). Includes dose adjustments, warnings and precautions. Webbenzonatate is a cough suppressant that relieves cough. It works by calming your cough reflex. Common brand names for this medication include tessalon®, perles® and. Webfeb 9, 2018 · benzonatate (tessalon) is an oral drug used to relieve coughing. Learn about side effects, warnings, dosage, and more.