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聖約翰草 St. John's Wort × 更年期

結論：證據分歧

更年期症狀（潮紅、相關情緒症狀）並非聖約翰草的核心適應症。

B 🟡 B 初步證據 證據分歧 ✨ low — community discussion mostly non-commercial
⚠️ 標記 ⚠️ COI（產業聯盟資助） 🇹🇼 台灣在地警示 💊 檢驗 / 藥物交互作用

更年期症狀（潮紅、相關情緒症狀）並非聖約翰草的核心適應症。

L2 收錄 1 篇 2014 統合分析顯示對更年期症狀有正面效果（SMD -1.08，95% CI -1.38 至 -0.77），方向與多數小型 RCT 一致，但證據基礎全為小型單中心試驗（n=80-301），其中 SJW+Vitex 組合 RCT 為陰性、SJW+黑升麻 RCT 屬廠商資助，且組合製劑無法分離聖約翰草單一貢獻。

我獨立評定為 B 級（初步證據）：研究方向偏正面但規模小、異質、含 COI 與組合干擾，未達 A 級之「至少一個高品質 MA + 多個一致 RCT」門檻；亦明顯高於 U（確有多個人體 RCT）。

此非反證據情境——L5e 學會「不建議」是基於證據強度不足與品質疑慮，並非顯示無效。

⚖️

評分透明度

所有分數由 7 層證據引擎計算，過程公開可查
原始分數 0.56
D
C
B
A
S
← 反證據 / 無效有效 / 強證據 →
最終評級
B · 證據分歧
信心度
64%
證據方向大致一致
證據層級
E2
多篇高品質統合分析（≥2 篇一致）

各層「支持此療效」的程度

分數越低＝該層越不支持
L5 臨床機構權威立場
0.35
L1 Examine國際基準
0.50
L3 機轉生理合理性
0.65
L11 AI 複核獨立判讀
0.65
L2 PubMed原始文獻
0.75
不支持 中性 / 混合 支持
▸查看完整決策路徑（audit trail）
  1. compute_raw_score — 加權公式: L2×0.30 + L3×0.25 + L5×0.25 + L11×0.10 + L1×0.10 = 0.56
  2. tier_from_score — 依分數區間映射至 tier letter
  3. apply_hec_rules — 無高階證據可裁決
  4. tier_strict_requirement_check — Tier 條件達標，未降階
  5. detect_disputes — 偵測到 1 個 hard + 1 個 soft dispute
  6. decide_status — 依 tier + dispute 結果決定 status

Hypericum perforatum L. preparations for menopause: a meta-analysis of efficacy and safety
PMID: 24188229 2014 統合分析
結論：Pooled analysis found Hypericum perforatum preparations significantly superior to placebo for menopausal symptoms (SMD -1.08, 95% CI -1.38 to -0.77); adverse events were not significantly different from placebo (17.4% vs 15.4%, RR 1.16, 95% CI 0.81-1.66), and the authors concluded SJW preparations are effective with a favourable safety profile.
效應量：[object Object]
前往 PubMed
Effects of flaxseed and Hypericum perforatum on hot flash, vaginal atrophy and estrogen-dependent cancers in menopausal women: a systematic review and meta-analysis
PMID: 27462550 2016 系統性回顧
結論：This systematic review of nine RCTs reported that Hypericum perforatum reduces hot flash frequency and intensity in menopausal women, with one trial showing Vitex agnus-castus and H. perforatum producing a comparable decrease in hot flash frequency; no pooled SMD or CI specific to H. perforatum was reported in the abstract.
前往 PubMed
Black cohosh and St. John's wort for climacteric complaints: a randomized trial
PMID: 16449108 2006 RCT (double-blind) n = 301
結論：In 301 women with climacteric complaints plus psychological symptoms, the SJW+black cohosh combination cut the Menopause Rating Scale score by 50% vs 19.6% for placebo and the Hamilton Depression score by 41.8% vs 12.7% (P < .001), being significantly superior to placebo with adverse events comparable to placebo.
⚠️ 廠商資助 效應量：[object Object]
前往 PubMed
The effect of Hypericum perforatum on postmenopausal symptoms and depression: A randomized controlled trial
PMID: 31331546 2019 RCT (double-blind) n = 80
結論：In 80 postmenopausal women aged 45-60 (Iran), SJW significantly reduced hot flash frequency/intensity and Kupperman index versus placebo (p < 0.001), and reduced depression severity such that 80% of the SJW group had no depression at week 8 vs 5.7% of controls (p < 0.001).
前往 PubMed
Effect of St John's wort on severity, frequency, and duration of hot flashes in pre-/peri-/postmenopausal women: an RCT
PMID: 20216274 2010 RCT (double-blind) n = 100
結論：In 100 pre-, peri- and postmenopausal women, both groups improved within-group, but SJW was significantly superior to placebo between groups for hot flash frequency (P = 0.005 at wk 4, P < 0.001 at wk 8), severity (P = 0.004 and P < 0.001) and duration (P < 0.001 by wk 8); authors concluded SJW is an effective treatment for vasomotor symptoms.
前往 PubMed
Hypericum perforatum with Vitex agnus-castus in menopausal symptoms: a randomized, controlled trial
PMID: 18791483 2009 RCT (double-blind) n = 100
結論：In 100 randomized women (93 completers) the SJW+Vitex combination showed no significant difference versus placebo on any endpoint including hot flushes; significant within-group improvement occurred in both arms, indicating no benefit over placebo for this herbal combination.
學術資助
前往 PubMed

L4a US FDA
謹慎
St. John's Wort appears to be an inducer of an important metabolic pathway, cytochrome P450. As many prescription drugs used to treat conditions such as heart disease, depression, seizures, certain cancers or to prevent conditions such as transplant rejection or pregnancy (oral contraceptives) are metabolized via this pathway, health care providers should alert patients about these potential dr… 來源↗
L4b EU EFSA
謹慎
L4c UK NHS
反對
St John's wort is a herbal treatment that some people take for depression. ... There's some evidence that it may help less severe depression, but it's not recommended by doctors. This is because the amount of active ingredients varies among individual brands and batches, so you can never be sure what sort of effect it'll have on you. Taking St John's wort with other medicines, such as anticonvu… 來源↗
L4d TW TFDA / 衛福部
謹慎
根據台灣衛生福利部的規定，聖約翰草不能當作一般食品原料使用，因此在台灣無法購買到合法含有聖約翰草的食品。 來源↗
L4e WHO
支持
Herba Hyperici. WHO Monographs on Selected Medicinal Plants, Volume 2 (Geneva: World Health Organization, 2002), pp. 149-171. The crude drug herba hyperici consists of the dried flowering aerial parts of Hypericum perforatum L. Uses supported by clinical data include the symptomatic treatment of mild to moderate depressive disorders. Verbatim section text of the WHO monograph could not be extra… 來源↗

L5a NIH Office of Dietary Supplements
謹慎
L5b Mayo Clinic
謹慎
Some research suggests that taking St. John's wort alone or with black cohosh or other herbs might lessen menopause symptoms such as hot flashes. 來源↗
L5c Cleveland Clinic
謹慎
L5d Harvard Health
中性
L5e Specialty Society (condition-mapped)
反對

PTT · Dcard · Mobile01 彙整自公開論壇討論，非統計抽樣，僅反映社群風向。
廣告 / 業配密度 低度
低中高
📍立場總覽

針對「更年期」面向，台灣社群幾乎沒有聖約翰草的真實使用討論。專門討論更年期保養的 PTT WomenTalk 熱門文（如 M.1629970455）整串無人提及聖約翰草，鄉民推薦多落在大豆異黃酮、鈣＋D、胎盤素與荷爾蒙處方藥（如利飛亞），並傾向先就醫。PTT 聖約翰草討論幾乎集中在 Aromatherapy 版的浸泡油／精油（外用美白、神經肌肉痠痛、助眠夢境）與少量憂鬱情緒口服話題，而非更年期。Dcard／Mobile01 亦無更年期專屬心得。聖約翰草在台灣不得作為食品合法販售，須 iHerb 等海外代購，進一步壓低社群討論量。整體屬無相關討論（not_addressed），social signal 對更年期面向極弱。

💬社群實感

無共識（更年期面向幾無社群實測心得；專討更年期的版友改推大豆異黃酮、鈣、胎盤素與荷爾蒙處方藥，未把聖約翰草當更年期選項）

破解迷思 社群最常見的 3 個誤解
✓
事實把 Aromatherapy 版的聖約翰草浸泡油／精油（外用、助眠按摩）誤當成可口服改善更年期熱潮紅、情緒的補充品（兩者用途與型態不同，精油不可口服）
✓
事實誤以為聖約翰草在台灣是合法可販售的更年期保健食品（實際不得作為食品販售，須海外代購）
✓
事實更年期女性誤以為可自行同時併用聖約翰草與賀爾蒙療法／抗憂鬱藥／口服避孕藥（聖約翰草為強效肝臟酵素 CYP3A4 誘導劑，會降低多種藥物血中濃度並提高血清素症候群風險）
🩹 社群通報的副作用
  • 光敏感（社群多次提醒口服與外用聖約翰草浸泡油皆增加日曬光敏性）
  • 與多種藥物交互作用（更年期常用之賀爾蒙療法、抗憂鬱藥、口服避孕藥、抗凝血劑藥效受影響）
🏷️ 社群熱議品牌

依論壇被提及頻率，非銷售或品質排序。

  • NOW Foods（iHerb 代購，St. John's Wort 300mg，更年期面向無專屬討論，僅見於一般聖約翰草話題）

⚠️ 列出僅代表「TW 社群討論度高」，不代表本站推薦或背書。本站不販售任何產品、無導購連結。

L10a · 廠商行銷話術 行銷語言
💬 通路如何宣傳

NOW Foods, St. John's Wort, 300 mg, 250 Veg Capsules

代表來源 ↗
L10b · TFDA 法定身份 官方認定

聖約翰草不能當作一般食品原料使用，台灣無法購買到合法含聖約翰草的食品

來源 ↗

  • 停經期荷爾蒙治療（MHT）
  • 陰道局部雌激素（治療泌尿生殖症候群）
  • 生活型態調整（規律運動、體重管理、戒菸）
✓ PMID 100% 反查全部經 NCBI Entrez 驗證
🔬 6 篇 L2 文獻 經多層 sub-agent 獨立評估
🇹🇼 含台灣社群分析L10c PTT / Dcard / Mobile01
aggregated_at: 2026-06-01 claim_version: v11 engine_version: v1.0 claim_id: CLM-COND-menopause-INT-st-johns-wort-001
查看 ClaimReview 結構化資料 (JSON-LD) 
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