Drug interactions
Cyproheptadine + Norepinephrine
Severity: Minor
Cyproheptadine and Norepinephrine: 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
Norepinephrine is an intravenous vasopressor used in critical care, and cyproheptadine is a sedating antihistamine. No clinically meaningful interaction is established, and the sedation effects are not relevant to vasopressor use.
What this interaction means in plain words
Cyproheptadine and Norepinephrine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
No established mechanism of significance.
What to do
No specific action is needed. Titrate norepinephrine to blood pressure as usual.
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 Cyproheptadine
- Cyproheptadine + Isocarboxazid Contraindicated
- Cyproheptadine + Phenelzine Contraindicated
- Cyproheptadine + Tranylcypromine Contraindicated
- Alfentanil + Cyproheptadine Major
- Belladonna and opium + Cyproheptadine Major
- Benzhydrocodone / acetaminophen + Cyproheptadine Major
Frequently asked questions
Can I take Cyproheptadine with Norepinephrine?
MediHelp rates the interaction as minor. Cyproheptadine and Norepinephrine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Norepinephrine is an intravenous vasopressor used in critical care, and cyproheptadine is a sedating antihistamine. No clinically meaningful interaction is established, and the sedation effects are not relevant to vasopressor use.
How serious is the interaction between Cyproheptadine and Norepinephrine?
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 specific action is needed. Titrate norepinephrine to blood pressure as usual.
What other medicines interact with Cyproheptadine?
MediHelp also lists interactions of Cyproheptadine with, for example, Isocarboxazid, Phenelzine, Tranylcypromine. The full list is on the Cyproheptadine page.
Full monographs, dosing and an interaction checker in the MediHelp app
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