If your symptoms do not improve within 2 to 4 weeks, check with your doctor. Also, check with your doctor if your asthma becomes worse.
You may also be taking a steroid or a bronchodilator for asthma along with this medicine. Do not stop taking the steroid or bronchodilator, even if your asthma seems better, unless you are told to do so by your doctor.
Throat irritation or an unpleasant taste may occur after you use this medicine. Gargling and rinsing the mouth after each dose may help prevent these effects.