Pseudoephedrine: study card

Generic name

Pseudoephedrine

Class

Nasal decongestant

Mechanism

Promotes norepinephrine release from adrenergic nerve endings; norepinephrine acts at alpha receptors in nasal blood vessels, producing vasoconstriction and decongestion.

Used for

Temporary nasal-congestion relief due to cold, hay fever or other upper-respiratory allergy in patients aged 12 years and older; Temporary sinus-congestion and pressure relief in patients aged 12 years and older

Common side effects

Nervousness; Dizziness; Sleeplessness

Warnings

Caution in heart disease, hypertension, thyroid disease; Caution in diabetes and enlarged prostate

Interactions

MAOIs (and 2 weeks after stopping)

Brand questions use only name pairings verified against the linked product source. Unverified pairings are withheld from these questions; the other study content remains available.

Label date: 20261009 · For learning, not clinical decisions. US label and brand information; always consult the current source.

Source snapshot checked: 2026-10-21. The source document and selected fields were compared. The complete card has not had an independent clinical review.