|MadSci Network: Medicine|
Epinephrine is unique in that it stimulates both Alpha and Beta receptors dependent on dosage. From a purely clinical practical point of view it will increase heart rate and blood pressure. The other drugs mentioned will block both types of receptor and again depending on dosage tend to nullify the effects of epinephrine. In clinical practice these 3 drugs would almost never be used at the same time. R.K. McGregor M.D.
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