What is Epinephrine?

A catecholamine that is the chief neurohormone of the adrenal medulla of most species; also secreted by certain neurons. The l-isomer is the most potent stimulant (sympathomimetic) of adrenergic α- and β-receptors, resulting in increased heart rate and force of contraction, vasoconstriction or vasodilation, relaxation of bronchiolar and intestinal smooth muscle, glycogenolysis, lipolysis, and other metabolic effects; used in the treatment of bronchial asthma, acute allergic disorders, open-angle glaucoma, cardiac arrest, and heart block, and as a topical and local vasoconstrictor. Generally used salts are epinephrine hydrochloride and epinephrine bitartrate, the latter most frequently used in topical preparations.

Questions and answers on "Epinephrine"

I had an allergic reaction to being in contact with poison sumac from carrying firewood in the house over a month ago. The emergency room at urgent...

doctor1 MD

Anaphylactic / Allergic shock is caused whenever the heart is unable to pump enough blood throughout the body due to an allergic reaction,...

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I have a reoccurring priapism which occurs for 10-12 hrs. 5 days a week which I have been living with regularly for 2 1/2 yrs. I have been to the...

doctor1 MD


Thanks for your query.

Though the Most of the times Priapism is Idiopathic(cause not known),yet the cause has to be found so that...

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Hello, Is it possible for a female (age 14) to have Hereditary Angioedema, if she has facial, lip, tongue, hands, vaginal, behind knees, and feet...

doctor1 MD


Thank you for your query on Healthcare Magic.

Yes it is possible to have Hereditary Angioedema.

On and off swellings of these body parts are...

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