Proventil HFA is a bronchodilator that loosens the muscles of breathing passages and increases the flow of air to the lungs, reports Drugs.com. A Proventil HFA inhaler is used to treat reversible obstructive airway disease and exercise-induced bronchospasm. Proventil HFA can also treat shortness of breath and wheezing that are caused by breathing problems, states WebMD.
The common dose of Proventil HFA is two inhalations every four to six hours. Exercise-induced bronchospasm can be prevented by taking two inhalations 30 minutes before beginning exercise. Proventil HFA starts working within 15 minutes and can last as long as six hours, according to MedicineNet. Side effects of Proventil include elevated blood pressure, fast heart rate, nausea, palpitations and headache. The generic name of Proventil HFA is albuterol, and additional brand names include ProAir HFA and Ventolin HFA.
Children younger than 4 years old cannot take Proventil HFA, notes Drugs.com. As of 2015, there is not adequate research about whether Proventil HFA is dangerous to an unborn baby or passes into breast milk. Some research indicates that Proventil HFA may cause congenital defects if used during pregnancy, says MedicineNet. Proventil HFA users should notify their doctors if they are planning to become pregnant or are already pregnant.