Drug interactions
Norepinephrine + Quetiapine
Severity: Moderate
Norepinephrine and Quetiapine: moderate 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
Quetiapine blocks alpha-1 adrenoceptors and can cause hypotension, which may reduce the pressor response to norepinephrine. In patients on infusions, higher doses of the vasopressor may be needed. The combination is mainly relevant in critical care.
What this interaction means in plain words
Norepinephrine and Quetiapine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Pharmacodynamic antagonism: alpha-1 blockade by quetiapine opposes norepinephrine vasoconstriction.
What to do
Monitor blood pressure closely and titrate norepinephrine to effect. Consider holding quetiapine in patients with refractory hypotension.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Quetiapine
- Adagrasib + Quetiapine Major
- Amiodarone + Quetiapine Major
- Amisulpride + Quetiapine Major
- Amoxapine + Quetiapine Major
- Anagrelide + Quetiapine Major
- Apalutamide + Quetiapine Major
Frequently asked questions
Can I take Norepinephrine with Quetiapine?
MediHelp rates the interaction as moderate. Norepinephrine and Quetiapine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Quetiapine blocks alpha-1 adrenoceptors and can cause hypotension, which may reduce the pressor response to norepinephrine. In patients on infusions, higher doses of the vasopressor may be needed. The combination is mainly relevant in critical care.
How serious is the interaction between Norepinephrine and Quetiapine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure closely and titrate norepinephrine to effect. Consider holding quetiapine in patients with refractory hypotension.
What other medicines interact with Quetiapine?
MediHelp also lists interactions of Quetiapine with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Quetiapine page.
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