Epinephrine. Effects, Indications, Dosing.
Epinephrine (Adrenaline) is naturally occurring catecholamine. It is is the prototype sympathomimetic . Epinephrine is synthesized, stored, and released from the adrenal medulla. Through activation of a-adrenergic receptors , b1 and b2 receptors regulates: myocardial contractility heart rate vascular and bronchial smooth muscle tone glandular secretions metabolic processes such as glycogenolysis and lipolysis Not administered orally as it is rapidly metabolized in the gastrointestinal mucosa and liver. Therefore, epinephrine is administered subcutaneously, intramuscularly (Epipen), or intravenously . Indications allergic reactions/ anaphylaxis treatment of severe asthma and bronchospasm during cardiopulmonary resuscitation during periods of hemodynamic instability to enhance myocardial contractility and increase vascular resistance during weaning from cardiopulmonary bypass increasing cardiac output in sepsis as part of local anesthetic solutions ...