Adrenergic Drugs

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Chapter: Essential pharmacology : Adrenergic System and Drugs

These are drugs with actions similar to that of Adr or of sympathetic stimulation.


Adrenergic Drugs

(Sympathomimetics)

 

These are drugs with actions similar to that of Adr or of sympathetic stimulation.

 

Direct Sympathomimetics        

 

They act directly as agonists on α and/or β adrenoceptors —Adr, NA, isoprenaline (Iso), phenylephrine, methoxamine, xylometazoline, salbutamol and many others.

 

Indirect Sympathomimetics

 

They act on adrenergic neurone to release NA, which then acts on the adrenoceptors—tyramine, amphetamine.

 

Mixed Action Sympathomimetics

 

They act directly as well as indirectly—ephedrine, dopamine, mephentermine.

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