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Guaifenesin may be used to treat symptoms caused by acute or chronic sinusitis. It is usually used along with antibiotics and home treatment.
Guaifenesin has not been proved to be effective in reducing symptoms of sinusitis, but it is widely used.
In general, guaifenesin is safe for all people when used as directed.
See Drug Reference for a full list of side effects. (Drug Reference is not available in all systems.)
Guaifenesin is inexpensive and available without a prescription. There is no evidence showing that it is effective in treating sinusitis.
It is often combined with another medicine such as a cough suppressant or decongestant.
Mucolytics may not be safe for young children or for people who have certain health problems. Before you use them, check the label. If you do use these medicines, always follow the directions about how much to use based on age and in some cases weight.
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