Oral decongestants are alpha-adrenergic antagonists that cause a vasoconstriction of the nasal mucosa.Intranasal decongestants are an alternative to oral decongestants that are less likely to cause systemic adverse effects.

Question

Quizplus · Accepted Answer

Pseudoephedrine and phenylephrine are thought to stimulate alpha₁ adrenergic receptors on the venous sinusoids.Intranasal decongestants are alternatives to oral decongestants as they are less likely to cause systemic adverse effects.They can,however,cause stinging,burning,sneezing,and dry throat or nose.Oral decongestants are alpha-adrenergic agonists.Alpha effects cause peripheral vasoconstriction.

Oral Decongestants Are Alpha-Adrenergic Antagonists That Cause a Vasoconstriction of the Nasal