Is Chan Su Safe with digoxin?
Free · No account · based on published sources including NIH ODS, FDA drug labels, and peer-reviewed literature
Inform your healthcare provider if you are taking Chan Su or any traditional Chinese medicine. Digoxin blood level tests may give falsely elevated or inaccurate results, complicating dose management.
Why this interaction occurs
Chan Su, a traditional Chinese medicine substance, can cause interference with standard radioimmunoassays for digoxin, potentially resulting in falsely positive or falsely elevated digoxin level readings, which may lead to inappropriate dose adjustments.
Evidence
Evidence level: strong.
Data source
FDA Drug Label
Reported safety data
The FDA’s adverse event reporting system (FAERS) has received 64,171 reports mentioning digoxin. This reflects reported cases involving the medication in general — not confirmed causation, and not specific to the digoxin + supplement combination on this page.
FAERS reports are voluntary and cannot prove that a drug caused an event. Do not use report counts to assess the safety of this specific drug-supplement pair.
Frequently asked questions
Related interactions
All Chan Su interactions → · All digoxin interactions →
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Educational only — not medical advice.
Always confirm with your doctor or pharmacist.