is a bronchodilator used for prevention and long term treatment of asthma attacks. Inhaled agents have minimal side effects. Oral agents can cause tachycardia and angina. Advise clients to observe for signs and symptoms (chest, jaw, or arm pain or palpitations). Instruct clients on how to check pulse and to report an increase greater than 20 to 30 beats/min. Use cautiously in patients with diabetes, hyperthyroidism, heart disease, hypertension, and angina.