Drug reference
pseudoephedrine
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Drug class
Respiratory (Decongestant)
Mechanism of action
Alpha-adrenergic agonist of receptors present in respiratory mucosa, causing vasoconstriction; directly stimulates beta-adrenergic receptors and causes bronchial relaxation, as well as increased heart rate and contractility.
Common side effects
- Insomnia
- Restlessness
- Worsening of asthma or chronic lung diseases
Known interactions (4)
- isocarboxazid + pseudoephedrine Contraindicated
- ergotamine + pseudoephedrine Major
- bisoprolol + pseudoephedrine Moderate
- cabergoline + pseudoephedrine Moderate
Related conditions
Frequently asked questions
What drug class is pseudoephedrine?
pseudoephedrine belongs to: Respiratory.
How does pseudoephedrine work?
Alpha-adrenergic agonist of receptors present in respiratory mucosa, causing vasoconstriction; directly stimulates beta-adrenergic receptors and causes bronchial relaxation, as well as increased heart rate and contractility.
What are the common side effects of pseudoephedrine?
Insomnia, Restlessness, Worsening of asthma or chronic lung diseases
Which drugs interact with pseudoephedrine?
isocarboxazid, ergotamine, bisoprolol, cabergoline
Full monographs, dosing and an interaction checker in the MediHelp app
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