Drug interactions
Pseudoephedrine + Trazodone
Severity: Minor
Pseudoephedrine and Trazodone: minor interaction.
Last updated
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.
Summary
Trazodone has alpha-adrenergic blocking activity and weak serotonin reuptake effects, so its interaction with pseudoephedrine is unpredictable. Blood pressure responses may be blunted or variable, and the clinical importance is generally limited.
What this interaction means in plain words
Pseudoephedrine and Trazodone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Pseudoephedrine belongs to Respiratory; Trazodone belongs to Central Nervous System.
Why it happens
Alpha-adrenergic antagonism by trazodone may oppose the pressor effects of sympathomimetics; the interaction is poorly characterized.
What to do
No routine change is needed. Monitor blood pressure and heart rate if the combination is used.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Pseudoephedrine
- Isocarboxazid + Pseudoephedrine Contraindicated
- Phenelzine + Pseudoephedrine Contraindicated
- Pseudoephedrine + Rasagiline Contraindicated
- Pseudoephedrine + Selegiline Contraindicated
- Pseudoephedrine + Selegiline transdermal Contraindicated
- Pseudoephedrine + Tranylcypromine Contraindicated
Other interactions of Trazodone
- Arsenic trioxide + Trazodone Contraindicated
- Ibutilide + Trazodone Contraindicated
- Isocarboxazid + Trazodone Contraindicated
- Levoketoconazole + Trazodone Contraindicated
- Methylene blue + Trazodone Contraindicated
- Phenelzine + Trazodone Contraindicated
Frequently asked questions
Can I take Pseudoephedrine with Trazodone?
MediHelp rates the interaction as minor. Pseudoephedrine and Trazodone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Trazodone has alpha-adrenergic blocking activity and weak serotonin reuptake effects, so its interaction with pseudoephedrine is unpredictable. Blood pressure responses may be blunted or variable, and the clinical importance is generally limited.
How serious is the interaction between Pseudoephedrine and Trazodone?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine change is needed. Monitor blood pressure and heart rate if the combination is used.
What other medicines interact with Pseudoephedrine?
MediHelp also lists interactions of Pseudoephedrine with, for example, Isocarboxazid, Phenelzine, Rasagiline. The full list is on the Pseudoephedrine page.
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