Chemically, epinephrine and norepinephrine are very similar. Both epinephrine and norepinephrine work on alpha and beta receptors. However, epinephrine has a greater effect on beta receptors ...

Both function by binding to protein receptors on cells. The four primary receptors — alpha-1, alpha-2, beta-1, and beta-2 — are located in different body areas. The impact of norepinephrine ...

1–6 This response is thought to be due to stimulation of beta-adrenergic neuroreceptors in the system of classification proposed by Ahlquist. 7 Several new blocking agents specifically for the ...

Major beta blocker mortality trials in chronic heart failure: a critical review. Heart. 1999;82(suppl 4):IV14 IV22. Altered adrenergic receptor sensitivity due to polymorphic variation.