Each medication class has its unique role in managing lower respiratory conditions, and a combination of these medications may be used for optimal control of symptoms, prevention of exacerbations, and improved quality… Health care professionals should carefully consider the client’s individual needs, characteristics, and treatment goals when selecting and prescribing these medications

beta adrenergic — activation or stimulation of beta-adrenergic receptors, which are found in various tissues throughout the body. norepinephrine — neurotransmitter and hormone as well as a medication that is used to increase and maintain blood pressure. leukotrienes — a group of inflammatory mediators that are primarily responsible for bronchoconstriction. acetylcholine — a neurotransmitter that contracts smooth muscles, dilates blood vessels, increases bodily secretions, and reduces heart rate.