Drug interactions
Doxylamine + Remimazolam
Severity: Major
Doxylamine and Remimazolam: major interaction.
Last updated Sources: US FDA label
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
Remimazolam is a benzodiazepine sedative that can cause profound sedation and respiratory depression, and doxylamine adds further sedative effects. The combination may increase the depth and duration of sedation.
What this interaction means in plain words
Doxylamine and Remimazolam can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Doxylamine belongs to Respiratory; Remimazolam belongs to Central Nervous System.
Why it happens
Additive CNS and respiratory depression via GABA-A potentiation plus H1 antagonism.
What to do
Titrate remimazolam carefully and monitor vital signs continuously during sedation and recovery. Dose reductions may be needed in patients who have recently taken doxylamine.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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References
Other interactions of Doxylamine
Other interactions of Remimazolam
Frequently asked questions
Can I take Doxylamine with Remimazolam?
MediHelp rates the interaction as major. Doxylamine and Remimazolam can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Remimazolam is a benzodiazepine sedative that can cause profound sedation and respiratory depression, and doxylamine adds further sedative effects. The combination may increase the depth and duration of sedation.
How serious is the interaction between Doxylamine and Remimazolam?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Titrate remimazolam carefully and monitor vital signs continuously during sedation and recovery. Dose reductions may be needed in patients who have recently taken doxylamine.
What other medicines interact with Doxylamine?
MediHelp also lists interactions of Doxylamine with, for example, Belladonna and opium, Benzhydrocodone / acetaminophen, Brexanolone. The full list is on the Doxylamine page.
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