Dizziness, anxiousness, body aches, nausea and diarrhea are common side effects of albuterol, the active ingredient in a ProAir HFA inhaler, reports Drugs.com. Other side effects include a stuffy or runny nose, sore throat and sinus pain. More serious side effects that require immediate medical attention include shaking and trembling in the limbs, hands, or feet and an irregular pulse or racing heartbeat.
Albuterol overdose symptoms may include dry mouth, chest pain, seizure, convulsions or fainting, according to Drugs.com. Individuals should contact their doctor immediately if use of albuterol causes choking or other breathing difficulties, leg cramps, muscle weakness, pain when urinating or blurred vision. A rise in blood sugar in response to the drug might result in increased thirst and hunger, frequent urination and a fruity odor to the breath.
The bronchodilator albuterol is usually well-tolerated, and the most severe side effects most commonly occur with high doses, explains Drugs.com. Higher doses of albuterol can aggravate angina and cause arrhythmias, necessitating caution when used by individuals with high blood pressure or cardiovascular disease. Taking the drug through a metered-dose inhaler causes fewer systemic side effects than receiving it in oral or nebulizer form. Individuals with reversible obstructive airway disease who use albuterol to relax muscles and increase airflow to the lungs typically take inhalations every four to six hours and experience relief for up to six hours.