Albuterol sulfate is a bronchodilator, used off label, to treat asthma and cough related to bronchoconstriction. It is administered as an inhalant in cats and by mouth, as a tablet, in dogs. The most common side effects include nervousness, shaking, fast heartbeat, and dizziness. Use with caution in pets with diabetes, hyperthyroidism, high blood pressure, seizures, heart disease, abnormal heart rhythms, or pregnancy. If a negative reaction occurs, call your veterinary office.