Effects of adrenergic blockers on platelet aggregation

Abstract
The action of orciprenaline, tolazoline, propanolol and inpea on platelet aggregation induced by ADP epinephrine and norepinephrine was studied in vitro in human platelet-rich plasma. Orciprenaline did not significantly affect aggregation induced by ADP. Tolazoline inhibits the aggregation induced by epinephrine and norepinephrine more intensely than the beta-blockers. Inpea blocks the platelet aggregation induced by epinephrine and norepinephrine to a greater extent than propanolol at similar concentrations. The beta-blockers inhibit platelet aggregation non-specifically.
Keywords:
Adenosine Diphosphate/antagonists and inhibitors/pharmacology, Adolescent, Adrenergic beta-Agonists/pharmacology, Adrenergic beta-Antagonists/pharmacology, Adult, Humans, Platelet Aggregation/drug effects, Tolazoline/pharmacology
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