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Adding Chinese patent medicines to SSRIs improves HAMD scores and response rates in depressive disorderChinese Herbal Add-Ons May Boost Antidepressant Effects

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Key Takeaway
Consider adding Chinese patent medicines to SSRI regimens to potentially improve HAMD scores and clinical response rates.

This systematic review and network meta-analysis evaluated the efficacy of seven Chinese patent medicines (CPMs) when combined with Selective Serotonin Reuptake Inhibitors (SSRIs) for adults with depressive disorder. The analysis included a sample size of 5,975 patients to compare CPM plus SSRI combinations against SSRIs alone.

The study found that all CPM plus SSRI combinations significantly improved HAMD scores compared to SSRIs alone, with mean differences ranging from -2.60 to -6.20. Additionally, clinical response rates were significantly higher in the combination groups, with odds ratios ranging from 1.8 to 5.0. Regarding safety, no significant difference in adverse drug reactions was found between treatment arms.

Several limitations were noted by the authors, including probabilistic rankings for HAMD scores and statistically unconfirmed rankings for response rates. Evidence supporting the specific efficacy and safety of certain CPMs remains limited, and a potential publication bias was noted for clinical response rates (p = 0.0002). Clinical application should be approached with caution due to these limitations and the probabilistic nature of some findings.

How this fits prior evidence

This finding addresses a gap in identifying adjunctive therapies for depressive disorder. While previous evidence showed that adjunctive JNJ-42165279 failed to improve depression in SSRI/SNRI inadequate responders, this study suggests that specific Chinese patent medicines (CPMs) combined with SSRIs may enhance efficacy and response rates compared to SSRIs alone.

A new analysis suggests that adding certain Chinese patent medicines (CPMs) to standard antidepressant treatment may help adults with depression feel better. The study, a network meta-analysis, combined results from multiple trials involving 5,975 adults with depressive disorder. It compared seven different CPMs combined with SSRIs (a common type of antidepressant) against SSRIs alone.

Overall, all CPM plus SSRI combinations significantly improved depression scores (as measured by the HAMD scale) and increased the number of people who responded to treatment, compared with SSRIs alone. The improvement in HAMD scores ranged from 2.60 to 6.20 points, and the odds of responding were 1.8 to 5.0 times higher with the combinations.

However, the study has important limitations. The rankings of specific CPMs are probabilistic, meaning they are not definitive. Also, the evidence for some CPMs is limited, and there was a potential publication bias for the response rate results. No significant differences in side effects were found between the combination and SSRI-alone groups, but safety data were incomplete.

This analysis provides early evidence that adding CPMs to SSRIs might be helpful, but it is not proof. The findings should be interpreted with caution. If you are considering adding any herbal product to your antidepressant, talk to your doctor first to ensure it is safe and appropriate for you.

What this means for you:
Adding certain Chinese patent medicines to SSRIs may improve depression outcomes, but evidence is limited and not definitive.

Common questions

What did the study find about combining Chinese patent medicines with SSRIs?

The study found that adding any of seven Chinese patent medicines to SSRIs significantly improved depression scores and increased the likelihood of responding to treatment, compared with SSRIs alone. However, these findings are based on a network meta-analysis and should be interpreted with caution.

Are there any side effects when combining Chinese patent medicines with SSRIs?

The study did not find any significant differences in adverse drug reaction rates between the combination and SSRI-alone groups. However, safety data were incomplete, and the evidence for some CPMs is limited. Always discuss potential side effects with your doctor.

How strong is the evidence for these findings?

The evidence is moderate at best. The rankings of specific CPMs are probabilistic, and the ranking for response rate is statistically unconfirmed. There was also potential publication bias for the response rate outcome. More research is needed to confirm these results.

Study Details

Study typeMeta analysis
EvidenceLevel 1
PublishedAug 2026
View Original Abstract ↓
BackgroundDepressive disorder is a leading cause of disability worldwide, and selective serotonin reuptake inhibitors (SSRIs) remain first-line pharmacotherapy. However, the efficacy and safety of adding Chinese patent medicines (CPMs) as adjunctive therapy to SSRIs have not been systematically evaluated in a network meta-analysis.ObjectiveTo compare and rank seven CPMs combined with SSRIs for depressive disorder in terms of HAMD improvement, clinical response rate, and adverse drug reactions (ADRs) rate.MethodsWe searched MEDLINE, EMBASE, PsycINFO, CENTRAL, CNKI, WanFang, and VIP from inception to April 1, 2026. Trials comparing any CPM + SSRI versus the same SSRI alone in adults with depressive disorder were included. Two authors independently extracted data and assessed risk of bias (RoB 2.0). Pairwise meta-analysis and network meta-analysis (using both netmeta and getmc packages) were performed; cumulative probability (SUCRA) rankings were derived from Bayesian analysis with getmc. Confidence in evidence was evaluated with CINeMA.ResultsSixty-five trials involving 5,975 patients were included. Compared with SSRIs alone, all CPM + SSRI combinations significantly improved HAMD score (MD range –2.60 to –6.20) and clinical response rate (OR range 1.8–5.0). For HAMD, JYW+SSRIs showed the highest SUCRA ranking, followed by BJTGT+SSRIs and SGJY+SSRIs, though these rankings are probabilistic. For response rate, BJTGT+SSRIs showed the highest SUCRA ranking, but statistically unconfirmed. For safety, TM+SSRIs showed the highest SUCRA ranking, though no ADR comparison reached significance; YXQN+SSRIs ranked second in SUCRA analysis, based on one small trial. Egger’s test indicated no publication bias for HAMD (p = 0.5753) but potential bias for clinical response rate (p = 0.0002). Sensitivity analysis excluding small studies confirmed the robustness of HAMD findings.ConclusionAdding CPMs to SSRIs may enhance efficacy and reduce ADRs. Although the rankings suggest promising efficacy, they are probabilistic in nature, and the effect estimates and their confidence intervals should be given greater weight in interpretation. No ADR comparisons reached statistical significance, and evidence supporting the safety and efficacy of some CPMs remains limited. Findings should be interpreted with caution, and future studies should further evaluate the safety and efficacy of combined therapy.Systematic review registrationhttps://www.crd.york.ac.uk/prospero/, identifier CRD420261299414.
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