About naphazolineimidazoline derivative,alpha-adrenergic agonist, a decongestant,vasoconstrictor.mechanism of action of naphazolinenaphazoline exerts its vasoconstrictor action by acting as a selective alpha-1 adrenergic agonist. thus it reduces blood flow, and causes shrinkage of mucosa which provides relief of nasal congestion.indications for naphazolinenasal congestion
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