Drug interactions
Betamethasone + Succinylcholine
Severity: Minor
Betamethasone 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
Systemic corticosteroids given with neuromuscular blockers, mostly nondepolarizing agents in prolonged ICU use, are associated with acute myopathy. With a single dose of succinylcholine for intubation the risk is low, but it may be relevant in critically ill patients on high-dose steroids.
What this interaction means in plain words
Betamethasone 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.
Betamethasone belongs to Endocrine; Succinylcholine belongs to Musculoskeletal.
Why it happens
Corticosteroids and neuromuscular blockade both injure muscle, and the exact mechanism of combined myopathy is not fully established.
What to do
Use the shortest effective duration of neuromuscular blockade and steroid exposure in critically ill patients, and monitor for weakness and creatine kinase elevation.
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 Succinylcholine
Other interactions of Betamethasone
Frequently asked questions
Can I take Betamethasone with Succinylcholine?
MediHelp rates the interaction as minor. Betamethasone 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. Systemic corticosteroids given with neuromuscular blockers, mostly nondepolarizing agents in prolonged ICU use, are associated with acute myopathy. With a single dose of succinylcholine for intubation the risk is low, but it may be relevant in critically ill patients on high-dose steroids.
How serious is the interaction between Betamethasone 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: Use the shortest effective duration of neuromuscular blockade and steroid exposure in critically ill patients, and monitor for weakness and creatine kinase elevation.
What other medicines interact with Succinylcholine?
MediHelp also lists interactions of Succinylcholine with, for example, Amikacin, Bacitracin-neomycin-polymyxin, Capreomycin. The full list is on the Succinylcholine page.
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