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Sambucol (elderberry extract, maintenance)
Immunity · Prevention · Daily use
Tier 3 — Trending
What it is
Evidence supports elderberry for treating active colds and flu when started within 48 hours of symptoms. However, no trial evidence supports daily maintenance use for immune "boosting" in healthy adults. Save it for when you actually get sick rather than taking it every day. Using it preventively is an unnecessary expense with no proven benefit.
Efficacy
2/5
Safety
4/5
Research
2/5
Onset
3/5
Cost
3/5
Drug-int.
4/5
Dose
Acute use only (15 mL × 4 daily for 3–5 days at symptom onset); daily maintenance use unsupported
Time of day & tips
Only use when sick — take at the very first signs of a cold or flu. Take with water, with or without food. Do not use daily for prevention.
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