| They can include hoarseness, sore throat, headache, fever, and a dry cough, which can be persistent. |
| Occasionally, patients may present with rapid onset of hoarseness of voice similar to that encountered in acute viral laryngitis. |
| Two patients had more serious permanent hoarseness and were waiting for otolaryngological review. |
| The primary adverse events believed to be related to the study drug were transient laryngitis and hoarseness. |
| Some more affected children will have hoarseness, aphonia, and inspiratory retractions that are severe enough to cause chest wall deformity. |
| Side effects include difficulty swallowing, shortness of breath, sore throat and hoarseness. |
