Drug interactions
Atracurium + Diphenhydramine
Severity: Minor
Atracurium and Diphenhydramine: 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
Diphenhydramine has anticholinergic and sedative effects but no clinically meaningful action on nicotinic neuromuscular blockade. A significant interaction with atracurium is not established.
What this interaction means in plain words
Atracurium and Diphenhydramine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Atracurium belongs to Musculoskeletal; Diphenhydramine belongs to Respiratory.
Why it happens
No established mechanism; the proposed anticholinergic link is theoretical.
What to do
No dose adjustment is needed; use routine neuromuscular monitoring during anesthesia.
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 Atracurium
Other interactions of Diphenhydramine
Frequently asked questions
Can I take Atracurium with Diphenhydramine?
MediHelp rates the interaction as minor. Atracurium and Diphenhydramine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Diphenhydramine has anticholinergic and sedative effects but no clinically meaningful action on nicotinic neuromuscular blockade. A significant interaction with atracurium is not established.
How serious is the interaction between Atracurium and Diphenhydramine?
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 dose adjustment is needed; use routine neuromuscular monitoring during anesthesia.
What other medicines interact with Atracurium?
MediHelp also lists interactions of Atracurium with, for example, Amikacin, Bacitracin-neomycin-polymyxin, Benzhydrocodone / acetaminophen. The full list is on the Atracurium page.
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