What is an ISA drug?: Understanding Intrinsic Sympathomimetic Activity
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4 min read
Approximately half of the beta-blockers currently available possess a special property known as intrinsic sympathomimetic activity (ISA). So, what is an ISA drug? It is a type of medication that acts as both a weak stimulant (agonist) and an antagonist at beta-adrenergic receptors, offering a unique pharmacological profile compared to conventional beta-blockers.
