It is used to treat wheezing and shortness of breath from lung problems (e.g., asthma, chronic obstructive pulmonary disease, bronchitis and emphysema).

Nervousness, shaking (tremor), dizziness, drowsiness or headache may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.

It is contraindicated in patients with known hypersensitivity to the drug