View Benzonatate Side Effects Mayo Clinic Pictures. Robert jacobson, chair of pediatrics at mayo clinic tells parents what side effects to watch for and how to prevent common side effects such as fever. Benzonatate relieves cough by acting directly on the lungs and the.

Benzonatate is used to relieve coughs due to colds or influenza (flu).

Although not all of these side effects may occur, if they do occur they may need medical attention. Benzonatate is used to relieve coughs due to colds or influenza (flu). It is not to be used for chronic cough that occurs with smoking, asthma, or emphysema or when there is an unusually large amount of mucus or phlegm with the cough. 19, mayo clinic began offering an experimental therapy to patients who test positive for #covid19 and are at high risk for serious illness.