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Head-to-head evidence comparison — which supplement is right for you?
Clomiphene (Clomid) vs Melatonin: Melatonin has the stronger overall evidence (8.5 vs 4.8/10); they're alternatives for fertility support — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Melatonin wins 3 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Mostly mechanism / observational
Top outcomes
Verdict
Likely helps
19 of 24 studies with measurable effects showed benefit.
Top outcomes
Off-label (male) / approved (female) — clinician-directed. For female ovulation induction the approved regimen is 50 mg once daily for 5 days starting early in the cycle, titrated up to 100-150 mg if needed. For off-label male hypogonadism, observational studies used roughly 25-50 mg daily or every other day (25 mg/day is the most common starting dose), titrated to testosterone and LH/FSH response. There is no FDA-approved male dose.
any
Clomiphene citrate tablets (racemic — approved for women; off-label in men)
0.5-1mg
30-60 minutes before bed
Immediate-release tablet or sublingual
Per cycle (5-10 day course)
Weeks to a few months
Within 3-6 months
N/A
Same night
1-3 days
Next morning
First week
Clomiphene citrate for men with hypogonadism: a systematic review and meta-analysis.
Andrology (2022) · Meta analysis · n=1642
Systematic review and meta-analysis of clomiphene citrate for male hypogonadism — 19 studies (4 RCTs, 15 observational), 1,642 patients; 17 studies (1,279 patients) in the meta-analysis
Letrozole versus clomiphene for infertility in the polycystic ovary syndrome.
N Engl J Med (2014) · Rct · n=750
Double-blind, multicenter RCT (NCT00719186) of 750 women with PCOS randomized 1:1 to letrozole vs clomiphene for up to five cycles; primary outcome live birth
Clomiphene and other antioestrogens for ovulation induction in polycystic ovarian syndrome.
Cochrane Database Syst Rev (2016) · Systematic review
Cochrane systematic review of clomiphene and other antioestrogens for ovulation induction in anovulatory PCOS subfertility
Melatonin in cancer treatment
The Cochrane database of systematic reviews (2025) · Meta analysis · n=126
We downgraded the certainty of the evidence because of high risk of bias, small sample size, the width of the 95% confidence interval, and indirectness due to inadequate reporting of cancer type.
Comparative Efficacy, Tolerability, and Acceptability of Donanemab, Lecanemab, Aducanumab, Melatonin, and Aerobic Exercise for a Short Time on Cognitive Function in Mild Cognitive Impairment and Mild Alzheimer's Disease: A Systematic Review and Network Meta-Analysis
Journal of Alzheimer's disease : JAD (2024) · Meta analysis · n=4599
Melatonin may be a better potential disease-modifying treatment for cognitive decline in mild AD and MCI.
Melatonin for sleep disorders in people with autism: Systematic review and meta-analysis
Progress in neuro-psychopharmacology & biological psychiatry (2023) · Meta analysis · n=595
According to the global analysis, the wake after sleep onset and night awakening parameters were not statistically significant.
Based on meta-analyses showing 7-12 minute reduction in sleep onset. Higher doses showed diminishing returns and increased morning grogginess. Sublingual forms may be more effective at lower doses.
AI-estimated from published studies. Interpret as directional guidance.
Melatonin has a higher evidence score (8.5/10 vs 4.8/10) and wins in 3 of 3 categories.
For fertility support, Melatonin has a higher relevance score (85 vs 64).
No known interactions between Clomiphene (Clomid) and Melatonin have been documented in our database. However, always consult a healthcare provider before combining supplements.
The honest tier list — proven staples vs situational vs mostly marketing. The hub the other guides feed into.
When to take what, with or without food, and which supplements compete vs pair well.
Melatonin, magnesium, glycine, L-theanine — tiered by evidence, plus a wind-down timeline.
Commonly recommended vs ask-your-clinician vs avoid — a general, safety-first overview.
The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.