Supplement researchSourced from PubMed and NIH
NutriStack
Free iPhone appUpdated September 28, 2026

Supplement × Prescription·Evidence index

Clonidine and Melatonin: what the research found

PubMed indexes 8 records that name Clonidine and Melatonin together, either in the title or in an interaction, co-administration, or pharmacokinetic context. The key findings come first, in the authors’ own words, followed by every study with its design and PubMed link.

A summary of published research, not medical advice. A pharmacist can check any combination against your full list of medicines and supplements.

Key findings

What the studies concluded.

Reviews and human studies first. Each quote is the authors’ own conclusion about their study, not a NutriStack assessment, and a single study is not a consensus.

“Notably, the incidence of adverse effects did not differ significantly among the three groups. CONCLUSION: The findings of the present study indicate that both clonidine and melatonin are effective treatments for sleep disturbances in children with anxiety disorders.”

Jalali Firouzkohi et al. · 2026 · Human study · details

“Melatonin was effective for steal induction in 75% of children compared to 88% of children who had clonidine. Melatonin resulted less effective when administered early in the morning.”

Almenrader et al. · 2013 · Human study · details

“The preoperative anxiolysis with melatonin or clonidine reduced postoperative pain and morphine consumption in patients undergoing abdominal hysterectomy. The effects these 2 drugs were equivalent and greater than with placebo.”

The research

8 studies naming Clonidine and Melatonin.

Strongest relevance first: papers naming both substances in the title, then human trials and systematic reviews.

Efficacy of clonidine and melatonin for treating insomnia in anxious children: a randomized comparison.

BMC pediatrics · 2026 · PMID 41781909

Randomized Controlled TrialComparative Study

“Notably, the incidence of adverse effects did not differ significantly among the three groups. CONCLUSION: The findings of the present study indicate that both clonidine and melatonin are effective treatments for sleep disturbances in children with anxiety disorders.”

Jalali Firouzkohi et al. · From the abstract

Names both Clonidine and Melatonin in its title.

Preoperative anxiolytic effect of melatonin and clonidine on postoperative pain and morphine consumption in patients undergoing abdominal hysterectomy: a double-blind, randomized, placebo-controlled study.

The journal of pain · 2009 · PMID 19010741

Randomized Controlled Trial

“The preoperative anxiolysis with melatonin or clonidine reduced postoperative pain and morphine consumption in patients undergoing abdominal hysterectomy. The effects these 2 drugs were equivalent and greater than with placebo.”

Caumo et al. · From the abstract

Names both Clonidine and Melatonin in its title.

Melatonin responses to clonidine and yohimbine challenges.

Journal of psychiatry & neuroscience : JPN · 1995 · PMID 7647083

Clinical TrialControlled Clinical Trial

“Only clonidine 300 micrograms produced a significant elevation in GH release. This study highlights the limitations of oral neuroendocrine challenge studies.”

Kennedy et al. · From the abstract

Names both Clonidine and Melatonin in its title.

Comparative evaluation of oral melatonin and oral clonidine for the attenuation of haemodynamic response to laryngoscopy and tracheal intubation-A prospective randomised double blind study.

Indian journal of anaesthesia · 2020 · PMID 32934404

“Although both the drugs are effective, oral melatonin proved superior to oral clonidine in attenuating the haemodynamic response to laryngoscopy and tracheal intubation without any side effects.”

Choudhary et al. · Authors' conclusion

Names both Clonidine and Melatonin in its title.

Limitations

What this evidence cannot tell you.

Search-based evidence indexes have real limits, and it is worth being explicit about them:

How to read this page

A literature summary, not guidance.

NutriStack

Track what you actually take.

NutriStack is a free iPhone app for organising a supplement routine: what you take, when, and what the published record says about it. Its exploratory interaction checker covers Clonidine, Melatonin, and several hundred other substances.

Log your routine, get reminders at the times you choose, and scan a label to add a product. The checker is a research and organisation tool, not a clinical decision aid.

NutriStack is an informational and organizational tool, not a medical service, and not a substitute for professional advice. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or medication.