Spironolactone for Pcos Symptoms
Verdict: Published with Warning
Across 5 PubMed studies, the evidence for Spironolactone in Pcos Symptoms grades Tier B — preliminary evidence. Effective, but with safety or population caveats.
B 🟡 B Preliminary Evidence Published with Warning
Why this grade7-layer evidence engine
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Scoring transparency
All scores computed by a 7-layer evidence engine — fully auditableRaw score 0.57
D
C
B
A
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← counter-evidence / ineffectiveeffective / strong evidence →
Final grade
B · Published with Warning
Confidence
88%
Highly consistent evidence
Evidence level
E1
Cochrane high-quality SR/MA
▸View the full decision path (audit trail)
- compute_raw_score — 加權公式: L2×0.30 + L3×0.25 + L5×0.25 + L11×0.10 + L1×0.10 = 0.575
- tier_from_score — 依分數區間映射至 tier letter
- apply_hec_rules — 高品質 SR/MA 顯示 positive (4 篇 > 1 negative)
- tier_strict_requirement_check — Tier 條件達標，未降階
- detect_disputes — 偵測到 0 個 hard + 0 個 soft dispute
- decide_status — 依 tier + dispute 結果決定 status
PubMed studies (5)L2 · primary research & systematic reviews
Spironolactone versus placebo or in combination with steroids for hirsutism and/or acne
Finding: Across 9 small trials, 100 mg/day spironolactone for 6 months significantly improved hirsutism vs placebo (subjective hair-growth improvement OR 7.18, 95% CI 1.96-26.28; Ferriman-Gallwey WMD -7.20, 95% CI -10.98 to -3.42) and appeared more effective than finasteride, metformin and low-dose cyproterone acetate, but evidence for acne was insufficient.
View on PubMed Do Pleiotropic Effects of Spironolactone in Women with PCOS Make it More than an Anti-androgen? Evidence from a Systematic Review and Meta-analysis
Finding: Pooling 24 RCTs, spironolactone (100 mg/day) significantly reduced hirsutism in idiopathic hirsutism vs finasteride (MD -2.43, 95% CI -3.29 to -1.57) and vs cyproterone acetate (MD -1.18, 95% CI -2.10 to -0.26), but in PCOS women (50 mg/day vs metformin) showed NO significant Ferriman-Gallwey benefit (MD -0.61, 95% CI -1.76 to 0.54) and no effect on FSH, LH, menstrual cyclicity, BMI or HOMA-IR.
View on PubMed Short-Term, Low-Dose Spironolactone for Treatment of Hyperandrogenic Symptoms of Polycystic Ovary Syndrome—A Systematic Review
Finding: Of 5 open-label RCTs (3 meta-analysed), short-term low-dose spironolactone (monotherapy or combined with metformin) showed NO statistically significant difference vs metformin alone in reducing Ferriman-Gallwey scores, total testosterone or BMI; authors concluded current evidence shows no significant advantage and that larger, higher-quality trials are needed.
View on PubMed Metformin combined with spironolactone vs. metformin alone in polycystic ovary syndrome: a meta-analysis
Finding: Adding spironolactone to metformin significantly reduced BMI and total testosterone vs metformin alone, and (treatment >6 months) improved fasting glucose and insulin resistance with no increase in adverse events, but produced NO significant improvement in hirsutism score and no change in FSH or LH.
View on PubMed Comparative efficacy of statins, metformin, spironolactone and combined oral contraceptives in reducing testosterone levels in women with PCOS: a network meta-analysis
Finding: In a network meta-analysis of 9 RCTs (613 patients), atorvastatin was the most effective at lowering testosterone and was significantly superior to spironolactone monotherapy (MD -2.90, 95% CI -3.77 to -2.02) and to spironolactone plus metformin (MD -2.83, 95% CrI -3.80 to -1.87); spironolactone ranked among the less effective agents.
View on PubMed Regulatory & authoritative positionsL4/L5 · FDA / EMA / NIH ODS / Cochrane / Mayo …
L4a US FDA
Supportive
Spironolactone has been shown to be a tumorigen in chronic toxicity studies in rats. Spironolactone should be used only in those conditions described under INDICATIONS AND USAGE. Unnecessary use of this drug should be avoided. ALDACTONE is indicated for: Treatment of NYHA Class III-IV heart failure and reduced ejection fraction to increase survival, manage edema, and to reduce the need for hosp… source↗
L4b EU EFSA
Supportive
Qaialdo received marketing authorization on 26 May 2023. It is authorized to manage refractory oedema associated with congestive heart failure; hepatic cirrhosis with ascites and oedema, malignant ascites, nephrotic syndrome, and for diagnosis and treatment of primary aldosteronism and essential hypertension. The medicine can only be obtained with a prescription, and children should only be tre… source↗
L4c UK NHS
Supportive
It's used to treat: swelling, in the ankles, feet and other parts of the body, caused by fluid build-up (oedema), heart failure, high blood pressure (hypertension) if other medicines have not worked. It's only available with a prescription. Spironolactone is not usually recommended during pregnancy. This is because it can potentially affect a baby's development. [Serious side effects include] h… source↗
L4d TW TFDA / 衛福部
Supportive
安達通錠25 毫克 Aldactone Tablets 25 mg 衛署藥輸字第022610號 本藥須由醫師處方使用。適應症：利尿、高血壓、原發性醛類脂醇過多症。孕婦用藥分級：D 級。高血鉀症徵象(有高達26%病人發生，即使與Thiazide 利尿劑合用亦如此)。 source↗
L4e WHO
Supportive
Spironolactone is an aldosterone receptor antagonist used to treat edema, hypertension, heart failure, and aldosteronism. More specifically, its antimineralocorticoid activity is responsible for its therapeutic efficacy in the treatment of edema, high blood pressure, heart failure, hyperaldosteronism, and ascites due to cirrhosis. Additionally, spironolactone reduces the rate of testosterone pr… source↗
L5a NIH Office of Dietary Supplements
Supportive
Spironolactone tablets are indicated for: (1) the treatment of NYHA Class III-IV heart failure and reduced ejection fraction to increase survival, manage edema, and to reduce the need for hospitalization for heart failure, and (2) use as an add-on therapy for the treatment of hypertension, to lower blood pressure. Additionally, spironolactone is indicated for the management of edema in adult pa… source↗
L5b Mayo Clinic
Supportive
The most commonly used anti-androgen for hirsutism treatment is spironolactone (Aldactone, CaroSpir). However, the results are modest and take at least six months to be seen. Side effects can include irregular periods, and these medicines also can cause birth defects, so it's important to use birth control while you take them. source↗
L5c Cleveland Clinic
Supportive
Hirsutism often responds well to birth control pills, spironolactone or both. ... Lowering your androgen levels with spironolactone or oral contraceptives can help you keep more hair on your head. ... This medication is safe for most adults recorded female at birth, but you shouldn't get pregnant while taking it because it can harm a developing fetus. source↗
L5d Harvard Health
Supportive
Dermatologists often recommend the use of oral contraceptive pills or a medication called spironolactone to treat this type of acne. ... Certain medications, including spironolactone and retinoids for acne, should be avoided if a woman is trying to become pregnant. source↗
L5e Specialty Society (condition-mapped)
Supportive
Spironolactone, an aldosterone antagonist, exhibits dose-dependent competitive inhibition of the androgen receptor as well as inhibition of 5α-reductase activity. Spironolactone 100-200 mg/d [given in divided doses (twice daily)]... As with all antiandrogens, if a patient inadvertently uses spironolactone during early pregnancy, there is a danger that a male fetus could be feminized. Spironolac… source↗