Drug interactions
Darifenacin + Succinylcholine
Severity: Minor
Darifenacin and Succinylcholine: 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
Succinylcholine acts at nicotinic receptors at the neuromuscular junction, while darifenacin blocks muscarinic receptors, so a clinically important interaction is not established. Theoretical effects on autonomic responses such as bradycardia exist but are not well documented.
What this interaction means in plain words
Darifenacin and Succinylcholine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Darifenacin belongs to Genitourinary; Succinylcholine belongs to Musculoskeletal.
Why it happens
No established mechanism; actions occur at different cholinergic receptor subtypes.
What to do
No specific action is needed; monitor heart rate and neuromuscular function as usual 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 Darifenacin
Other interactions of Succinylcholine
Frequently asked questions
Can I take Darifenacin with Succinylcholine?
MediHelp rates the interaction as minor. Darifenacin and Succinylcholine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Succinylcholine acts at nicotinic receptors at the neuromuscular junction, while darifenacin blocks muscarinic receptors, so a clinically important interaction is not established. Theoretical effects on autonomic responses such as bradycardia exist but are not well documented.
How serious is the interaction between Darifenacin and Succinylcholine?
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; monitor heart rate and neuromuscular function as usual during anesthesia.
What other medicines interact with Darifenacin?
MediHelp also lists interactions of Darifenacin with, for example, Atazanavir, Bethanechol, Clarithromycin. The full list is on the Darifenacin page.
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