Main Entry: epi·neph·rine
Variant(s): also epi·neph·rin /"ep-&-'nef-r&n/
Function: noun
: a colorless crystalline feebly basic sympathomimetic hormone C9H13NO3 that is the principal blood-pressure-raising hormone secreted by the adrenal medulla, is prepared from adrenal extracts or made synthetically, and is used medicinally especially as a heart stimulant, as a vasoconstrictor in controlling hemorrhages of the skin and in prolonging the effects of local anesthetics, and as a muscle relaxant in bronchial asthma -- called also adrenaline.
Main Entry: ephed·rine
Pronunciation: i-'fed-r&n, Brit also 'ef-&-dr&n
Function: noun
: a crystalline alkaloid C10H15NO extracted from a Chinese ephedra (Ephedra sinica) or synthesized that has the physiological action of
epinephrine and is used in the form of a salt for relief of hay fever, asthma, and nasal congestion.
Ephedrine's {alpha-[1-(methylamino)ethyl]benzene-methanol} role as one of the key components of lipolytic agents sold OTC stems from it's mechanism of action and physiological effects. Ephedrine falls into a class of drugs called "sympathomimetic amines" which exhibit some of the stimulant properties of epinephrine and norepinephrine (Adrenalin and Noradrenaline). Ephedrine imparts a number of physiological effects after oral administration. It stimulates heart rate, contractility and cardiac output; increases blood pressure; increases the resistance to outflow of urine from the bladder; promotes dilation of the bronchioles; and is a potent central nervous system (CNS) stimulant.
Here's a thread regarding ephedrine and epinephrine.......
http://boards.elitefitness.com/forum/showthread.php?s=&threadid=59398&highlight=epinephrine
B32