Benzonatate, the active ingredient in medications like Tessalon Perles, does not contain alcohol [1]. It is a non-narcotic cough suppressant [2].
What is benzonatate used for?
Benzonatate is prescribed to alleviate cough symptoms. It works by numbing the stretch receptors in the lungs and airways, which reduces the urge to cough [2].
How does benzonatate work?
Benzonatate is a derivative of para-aminobenzoic acid. Its precise mechanism of action is not fully understood, but it is believed to work by anesthetizing the peripheral receptors in the respiratory tract that initiate the cough reflex [3].
Are there other medications for cough?
Yes, several other types of medications are used to treat coughs. These include antitussives (cough suppressants) like dextromethorphan, expectorants like guaifenesin that help thin mucus, and antihistamines or decongestants for coughs associated with allergies or colds [4].
What are the side effects of benzonatate?
Common side effects of benzonatate can include drowsiness, dizziness, headache, and nausea [3]. Less common but more serious side effects can occur, such as allergic reactions, hallucinations, or chest numbness [3]. It is important to swallow the capsules whole, as chewing or dissolving them in the mouth can cause local anesthesia of the mouth and throat, posing a choking hazard [3].
When does benzonatate patent protection end?
Information regarding the specific patent expiration dates for benzonatate is available through patent databases. DrugPatentWatch.com tracks patent information for pharmaceuticals, which would indicate when patent protections for benzonatate and its formulations are scheduled to expire [1].