PlainPill

Diphenhydramine vs Melatonin for sleep

Short answer: For sleep, more users report improvement with Diphenhydramine — 85% of 59 reports, versus 78% of 915 for Melatonin.

Diphenhydramine has 57 meta-analyses and 298 randomized trials on PubMed; Melatonin has 688 and 1,128.

Based on 116 reports about Diphenhydramine and 1,370 about Melatonin. Not medical advice.

Diphenhydramine
Medication
Melatonin
Supplement
Users say it helped37%helped79 reports · medium confidence42%helped726 reports · high confidence
Verdict
Mixed
Mixed
ResearchAResearch: StrongAResearch: Strong
Meta-analyses / RCTs57 / 298688 / 1,128
Mainly used for
Sleep
% reporting improvement
85% (59)78% (915)
Mood
% reporting improvement
—32% (37)
Energy
% reporting improvement
—32% (25)
Anxiety
% reporting improvement
71% (7)44% (16)
Focus
% reporting improvement
0% (6)38% (8)
Common side effectsdrowsiness, brain fog, anticholinergic, confusiondrowsiness, vivid dreams, fatigue, depression
Typical dose reportedNot listed0.5 mg / bedtime
Diphenhydramine
Latest review conclusion

Considering primary nodes' co-primary efficacy outcomes and head-to-head comparisons, efficacy for sialorrhea is most consistent for the following agents, decreasing from metoclopramide through cyproheptadine, sulpiride, propantheline, diphenhydramine, benzhexol, doxepin, amisulpride, chlorpheniramine, to amitriptyline, and atropine (the latter not for nocturnal sialorrhea). Shared decision-making with the patient should guide treatment decisions regarding clozapine-related sialorrhea.

Mol Psychiatry, 2023 ↗
What a user said
“Benadryl works the best when there is nothing else I can do and I take it a lot but probably not the best way to get sleep.”
Full Diphenhydramine profile →
Melatonin
Latest review conclusion

Overall, eszopiclone and lemborexant had a favorable profile, but eszopiclone might cause substantial adverse events and safety data on lemborexant were inconclusive. Doxepin, seltorexant, and zaleplon were well tolerated, but data on efficacy and other important outcomes were scarce and do not allow firm conclusions. Many licensed drugs (including benzodiazepines, daridorexant, suvorexant, and trazodone) can be effective in the acute treatment of insomnia but are associated with poor tolerability, or information about long-term effects is not available. Melatonin, ramelteon, and non-licensed

Lancet, 2022 ↗
What a user said
“I have taken it nightly for 19 years. Doses ranging from .1 to 10mg. Right now I take 3mg per night. It helps me sleep.”
Full Melatonin profile →

Related comparisons

Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate