Alcohol and Pregnenolone: what the published research says
PubMed indexes 8 records that name Alcohol and Pregnenolone together, either in the title or in an interaction, co-administration, or pharmacokinetic context. Each one is listed below with its study design and, where the abstract states one, the authors’ own conclusion, quoted and linked. This page reports that literature. It does not tell you whether to combine them.
Every statement below is attributed to a named, dated, linked source.
This page lists published research relevant to Alcohol and Pregnenolone. It deliberately does not state whether the combination is safe, whether it interacts, in which direction, at what dose, or how far apart to take them.
A study appearing here is not proof that an interaction exists. Two substances can be named together in a paper that never tested them in combination, and a source listed as background may cover only one of them.
Findings are quoted from each abstract as the authors wrote them. NutriStack has not re-analysed, pooled, or reconciled them, and they may disagree with each other.
NutriStack’s own interaction assessment for this pair is not published here. It has not completed qualified-human clinical review, so it is withheld from search. See the publication gate.
Nothing here is medical advice. Decisions about prescription medication and supplements belong with your prescriber or pharmacist, who can see your full regimen.
The research
8 studies naming Alcohol and Pregnenolone.
Strongest relevance first: papers naming both substances in the title, then human trials and systematic reviews.
Alcohol, clinical & experimental research · 2025 · PMID 39779217
Randomized Controlled Trial
“We found a normalization of autonomic response in PREG groups. These findings suggest that PREG holds therapeutic potential for enhancing autonomic function in AUD.”
“Findings indicate that pregnenolone decreases stress- and alcohol cue-provoked craving and normalizes HPA axis and autonomic arousal in individuals with AUD, thereby supporting the need for further assessment of pregnenolone in the treatment of AUD.”
Comparative StudyResearch Support, N.I.H., ExtramuralResearch Support, U.S. Gov't, Non-P.H.S.Human subjects
“These results indicate that plasma PREG-S and deoxycorticosterone levels are differentially regulated by HPA axis modulation in human plasma. Further, alcohol-dependent patients show a blunted PREG-S response to adrenal stimulation and a delayed deoxycorticosterone response to oCRH challenge.”
Pharmacology, biochemistry, and behavior · 1994 · PMID 7972293
Comparative StudyResearch Support, U.S. Gov't, Non-P.H.S.Animal study
“However, all doses of pregnenolone tested blocked the anxiolytic effect of ethanol on the plus-maze while one dose of pregnenolone sulfate, 1.0 microgram/kg, attenuated the response to ethanol. These results support the suggestion that these neurosteroids could play a role in the initial response to stress and indicate that further work needs to be done to determine the mechanism for the interaction with ethanol.”
Experimental and clinical psychopharmacology · 2026 · PMID 42258258
“PREG dose specifically reduced stress-provoked pain responses and affected concurrent pain and craving and anxiety associations, warranting further examination of PREG effects on pain and alcohol use outcomes in AUD. (PsycInfo Database Record (c) 2026 APA, all rights reserved).”
Advances in drug and alcohol research · 2023 · PMID 37846408
“Moreover, cell-free recordings of BK channel activity in cerebral artery myocyte membranes showed that 10 μM pregnenolone and pregnenolone +50 mM ethanol reduced channel activity to an identical extent, suggesting that these drugs inhibit cerebrovascular BK channels via a common mechanism or mechanisms. Indeed, pregnenolone was found to disrupt allosteric coupling to Ca2+-driven gating, as previously reported for ethanol.”
European journal of pharmacology · 2014 · PMID 25016089
Research Support, N.I.H., ExtramuralAnimal study
“acutely and significantly reduced alcohol intake and preference, the fact that chronic treatment did not show an effect diminishes its promise to be considered for the treatment of alcoholism. However, its profile of effects might be different in human alcoholics.”
Alcoholism, clinical and experimental research · 2010 · PMID 20946297
Research Support, N.I.H., ExtramuralAnimal study
“These results indicate that pregnenolone dose-dependently reduces operant ethanol self-administration in P rats without locomotor impairment, suggesting that it may have potential as a novel therapeutic for reducing chronic alcohol drinking in individuals that abuse alcohol.”
Names both Alcohol and Pregnenolone 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:
Selection. These records were found by searching PubMed titles and abstracts for both substance names alongside interaction and pharmacokinetic terms. Relevant work that phrases things differently, or is not indexed in PubMed, will be missing.
No effect size. The quoted conclusions are the authors’ words about their own study. We have not extracted effect direction or magnitude, and a single study’s conclusion is not a consensus.
Population mismatch. Findings in healthy volunteers, animals, or a specific patient group may not transfer to you, your dose, or your formulation.
Absence is not safety. Few published studies means the combination is under-studied, which is not the same as established as safe.
Nearby evidence
Other pairs with published research.
Pages covering Alcohol or Pregnenolone alongside a different substance.
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 Alcohol, Pregnenolone, and several hundred other substances.
The checker is a research and organisation tool, not a clinical decision aid, and its per-pair assessments are excluded from search until they pass claim-level review.
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.