Drug interactions
Doxylamine + Papaveretum
Severity: Major
Doxylamine and Papaveretum: major interaction.
Last updated Sources: Base de donnees publique des medicaments (France)
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
Papaveretum is an opium alkaloid mixture containing morphine. With doxylamine it increases the risk of excessive sedation and respiratory depression.
What this interaction means in plain words
Doxylamine and Papaveretum 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.
Why it happens
Additive CNS and respiratory depression from opioid agonism and H1 antagonism.
What to do
Avoid the combination if possible, or use reduced doses with monitoring of respiratory rate and sedation.
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
Frequently asked questions
Can I take Doxylamine with Papaveretum?
MediHelp rates the interaction as major. Doxylamine and Papaveretum 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. Papaveretum is an opium alkaloid mixture containing morphine. With doxylamine it increases the risk of excessive sedation and respiratory depression.
How serious is the interaction between Doxylamine and Papaveretum?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination if possible, or use reduced doses with monitoring of respiratory rate and sedation.
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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