NSG 124 Respiratory Med Class Mechanism of Action with answers

NSG 124 Respiratory Med Class Mechanism of ActionAntihistamines (Sedating) These medications generally compete with histamine for the H-1 receptor sites on effector cells. They can produce an anticholinergic effect, antipruritic, antitussive, antiemetic and a sedating effect. Antihistamines (Sedating) exemplar(s) Diphenhydramine (Benadryl) Antihistamines (non-sedating) These medications generally compete for the histamine H-1 receptor sites on effector cells thus preventing an allergic response mediated by histamine. Antihistamines (non-sedating) exemplar(s) Loratadine (Claritin) Levocetirizine (Xyzal) Azelastine (Astellin) Mast Cell Stabilizers These medications work by preventing the release of certain natural substances (histamine) made by the body that trigger the allergic reaction.