The back-and-forth began Friday when, in a fund-raising email to supporters, Obama campaign manager Jim Messina accused the billionaire brothers of jacking up prices at the pump and bankrolling Tea Party extremism..
Major difference is this. 1  Norepinephrine acts on alpha-1, alpha-2, and beta-1 recpetors...works to raise the heart rate and modulate blood pressure. 2  Epinephrine acts on alpha-1, alpha-2, beta-1, AND beta-2..effective anti-histamine and treatment for shock.
Norepinephrine is similar to adrenaline. It works by constricting (narrowing) the blood vessels and increasing blood pressure and blood glucose (sugar) levels. Norepinephrine is used to treat life-threatening low blood pressure (hypotension) that can occur with certain medical conditions or surgical procedures.