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EpiPen injection. Uses. This medication is used in emergencies to treat very serious allergic reactions to insect stings/bites, foods, drugs, or other substances. Epinephrine acts quickly to improve breathing, stimulate the heart, raise a dropping blood pressure, reverse hives, and reduce swelling of the face, lips, and throat.
What does epinephrine do in a lidocaine injection? constricts blood flow in capillaries via alpha 1 receptor (same as phenylephrine or over the counter cold remedies which are alpha 1 agonists) What does epinephrine do in an inhaler or endogenous epinephrine? dilate airway smooth muscle or large blood vessels via beta 2 receptors What are the 5 types of muscarinic receptors that mediate PNS control in different tissues?