Ventolin is a type of beta agonist that works by stimulating the muscles around the airways; this action causes the muscles to relax, which opens up the airways and allows more air to get into and through the lungs. Clinical studies show that the drug starts working within six minutes, with the effects lasting for approximately four hours, on average.
(Click Ventolin for more information about the Ventolin inhaler, including who makes it, how to use it properly, and what side effects may occur with this product.)