Clonazepam and Melatonin, a caution.
Both promote sleep through different mechanisms. Combined sedation may cause excessive drowsiness. However, melatonin may help facilitate benzodiazepine tapering.
One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
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From the interaction database
What the row says.
Every entry follows the same shape: what is happening, the mechanism, the recommendation, and the primary literature.
At a glance
- Substances
- Clonazepam and Melatonin
- Pair type
- Caution
- Evidence (highest tier)
- Moderate
- Source citations
- 4 sources
- Stack Score effect
- −5 to your Stack Score (per scored caution row).
- Scope
- Supplement × Prescription
- Last verified
- May 30, 2026
Caution · Moderate evidence
Caution
What is happening. Both promote sleep through different mechanisms. Combined sedation may cause excessive drowsiness. However, melatonin may help facilitate benzodiazepine tapering.
Mechanism. Clonazepam enhances GABAergic inhibition. Melatonin acts on MT1/MT2 receptors. Different sedative mechanisms are additive.
Recommendation. Low-dose melatonin (0.5-1mg) may be cautiously used. Some clinicians use melatonin to facilitate benzo tapering under supervision.
Sources (4)
- Baandrup L et al. Prolonged-release melatonin versus placebo for benzodiazepine discontinuation. Psychopharmacology. 2016;233(17):3251-3259. PMID 27435171
- Fatemeh G, Sajjad M, Niloufar R et al.. Effect of melatonin supplementation on sleep quality: a systematic review and meta-analysis of randomized controlled trials.. Journal of Neurology. 2022. PMID 33417003
- Tang BHY, Manalo J, Chowdhury SR et al.. Melatonin Use in the ICU: A Systematic Review and Meta-Analysis.. Critical Care Medicine. 2025. PMID 40662882
- Chan V, Lo K. Efficacy of dietary supplements on improving sleep quality: a systematic review and meta-analysis.. Postgraduate Medical Journal. 2022. PMID 33441476
Stack Score
How this pair moves the number.
Effect on the composite score
If both Clonazepam and Melatonin are in the same stack, this pair applies −5 to your Stack Score (per scored caution row).
The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.
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