Andrographis + Echinacea combo

Tier 2 — promising · Cold/Flu · Immunity

Used in several European cold and flu products and tested in a handful of RCTs. Studies suggest it reduces duration and severity of upper respiratory symptoms when started within 48 hours. The combination shows slightly better outcomes than either herb alone. Generally well tolerated for short-term use up to 10 days.

Dose: Andrographis 400 mg + Echinacea 400 mg/day at first sign of cold; use for up to 10 days