How is the statistically significant improvement in symptoms observed from P. sidoides extract in acute bronchitis generally described in meta-analyses?

Modest to moderate

When clinical investigations, including randomized controlled trials and subsequent meta-analyses, assess the effectiveness of Pelargonium sidoides extract for respiratory infections like acute bronchitis, the positive results noted are generally characterized as modest to moderate in comparison to a placebo. While the improvement is often statistically significant, especially within the initial days of use, it does not represent a complete or immediate cure-all for the symptoms, such as cough severity reduction. Furthermore, the text implies that the extract appears most effective when administered early in the illness course, suggesting it functions best as a timely supportive intervention rather than a powerful late-stage treatment.