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Dietary supplement

Pregnenolone 5 mg Ingredients & Drug Interactions

by Douglas Laboratories

Pregnenolone 5 mg label
See full label image
Tablet Or Pill Category: Non-nutrient/non-botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Pregnenolone 5 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Pregnenolone 5 mg is a dietary supplement by Douglas Laboratories with 1 active ingredient. Its ingredients are commonly taken for memory and cognitive support, anxiety and stress, anti-aging.Based on those ingredients, 82 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Pregnenolone. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Pregnenolone 5 mg by Douglas Laboratories

Ask about any prescription or over-the-counter medication and we check it for interactions with Pregnenolone 5 mg by Douglas Laboratories — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Pregnenolone 5 mg by Douglas Laboratories

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Sep 3, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: pregnenolone 5 mg. Pregnenolone is a hormone precursor—your body naturally makes it, and it's the raw material your system uses to build several other steroid hormones including estrogen, progesterone, and testosterone.

The tablet also contains inactive ingredients (mannitol, cellulose, silica, and vegetable stearate) that help form and stabilize the pill.

Does it work?

Couldn't assess
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Not assessable

This is a single-ingredient Pregnenolone product and its label doesn't state a use — see Pregnenolone's own graded uses on its monograph.

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.

The evidence we hold on pregnenolone isn't yet established for the conditions listed—alcohol use disorder, Alzheimer disease, autism spectrum disorder, back pain, and bipolar disorder all carry a rating of insufficient reliable evidence. That means the research so far isn't solid enough to say whether it works for these uses.

If you're interested in pregnenolone for a specific condition, talk it over with your doctor or pharmacist about what the current science actually shows.

The evidence, ingredient by ingredient Pregnenolone

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Pregnenolone is generally well tolerated when taken by mouth. The most common side effects reported in studies were acne, agitation, diarrhea, drowsiness, excitement, hair loss, skin abscess, sweating, and tremor.

Less common reports include depressive feelings, increased appetite, skin rash with burning (possibly from sun sensitivity), and anorexia, though it's not always certain pregnenolone caused these. Because this is a hormone supplement with limited human safety data, the safety notes advise against use during pregnancy and breastfeeding.

You should only use it under guidance from a healthcare professional.

Side effects, ingredient by ingredient Pregnenolone

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Pregnenolone.
  • The most serious interaction on file is rated Moderate.
  • For scale: 82 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before taking this product, double-check with your doctor or pharmacist if you take estrogens, progestins, progesterone, testosterone, or benzodiazepines—all documented Moderate severity interactions. The search tool on this page can help you check your exact medications.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Pregnenolone might interest someone looking to support steroid hormone production under professional supervision, but it's not for everyone—especially anyone taking estrogens, benzodiazepines, progestins, progesterone, or testosterone. Because it's a hormone with sparse safety information, check with your own doctor or pharmacist before starting, and absolutely talk it over if you're pregnant, breastfeeding, or taking any other medications.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Aug 23, 2020.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Pregnenolone 5 mg, straight from the product label.

Brand Douglas Laboratories
Barcode (UPC) 310539018774
Net contents 100 Dissolvable Tablet(s)
Market status On market
Date entered into DSLD Aug 23, 2020
DSLD ID 232052
Product type Non-nutrient/non-botanical
Supplement form Tablet Or Pill
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Women (not pregnant or lactating), Gluten Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Pregnenolone 5 mg by Douglas Laboratories, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Tablet(s)
Maximum serving Sizes:
1 Tablet(s)
Servings per container
100
UPC/BARCODE
310539018774
IngredientAmount% DV
Pregnenolone5 mg--

Other ingredients: Mannitol, Cellulose, Silica, Vegetable Stearate

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Suggested/Recommended/Usage/Directions

Suggested Usage: As a dietary supplement, adults take 1 tablet daily or as directed by your health professional only! Allow tablet to dissolve in mouth and then swallow.

Precautions

Warning: Not for use by individuals under the age of 18 years.

Do not use if pregnant or nursing. Consult a physician or licensed qualified health care professional before using this product if you have or have a family history of breast cancer, uterine cancer, ovarian cancer, prostate cancer, prostate enlargement, heart disease, low HDL cholesterol (“good cholesterol”), or if you are using any other dietary supplement, prescription drug, or over-the-counter drug.

Do not exceed the recommended serving. Exceeding the recommended serving may cause serious adverse health effects. Possible side effects include changes in liver function, acne, hair loss, hair growth on the face (in women), aggressiveness, irritability, and increased levels of estrogen. Discontinue use and call a physician or licensed qualified healthcare professional immediately if you experience rapid heartbeat, dizziness, blurred vision, or other similar symptoms.

Keep out of reach of children.

To report any adverse events call 1-800-332-1088.

Use only if safety seal is intact.

Storage

Store in a cool, dry place.

Formulation

Gluten-free, Non-GMO

Hormone support

FDA Disclaimer Statement

This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

General Statements

Contents may not fill package in order to accommodate required labeling. Please rely on stated quantity. Scan to learn about our manufacturing excellence

FDA Statement of Identity

Dietary Supplement

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Pregnenolone 5 mg by Douglas Laboratories label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Pregnenolone 5 mg label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Pregnenolone 5 mg by Douglas Laboratories

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 Tablet(s) Dosage formTablet Or Pill Servings per container100 Amounts shown are per serving.

Pregnenolone

Interacts with
82 drugs
5 mg per serving

Pregnenolone is a hormone your body makes naturally and a building block for other hormones like cortisol, DHEA, estrogen, and testosterone. It is sol...

Pregnenolone monograph & interactions

Other (inactive) ingredients: Mannitol, Cellulose, Silica, Vegetable Stearate. These complete the product’s ingredient list but are not active constituents.

Interaction report

Pregnenolone 5 mg by Douglas Laboratories Drug Interactions

Want to check YOUR meds against Pregnenolone 5 mg?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
82Drugs
82 Moderate

Ingredients driving the most interactions

Pregnenolone 82

Individual Drug Interactions

The ingredients in Pregnenolone 5 mg interact with 82 drugs. Click any drug to see the details.

1 of the 1 ingredient in Pregnenolone 5 mg interact with drugs. Each result below shows which ingredient is responsible. Pregnenolone

Each ingredient & the kinds of drugs it affects

For each ingredient in Pregnenolone 5 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Pregnenolone5 drug types · 82 drugs

Benzodiazepines

Concomitant use of pregnenolone may reduce the effects of benzodiazepines.
Very preliminary clinical research shows that chronic use of pregnenolone reduces sedative effects of diazepam when compared with chronic use of placebo. This effect may be related to the activity of pregnenolone at GABAA receptors.

Likelihood Probable Evidence B
Estrogens

Theoretically, taking pregnenolone might enhance the effects of estrogens.
Pregnenolone is a precursor for several steroid hormones, including estrogens.

Likelihood Possible Evidence D
Progesterone

Theoretically, taking pregnenolone might enhance the effects of progesterone.
In humans, some research shows that oral administration of pregnenolone can increase levels of progesterone. However, other research shows no effect on progesterone levels. It is possible the impact of pregnenolone on progesterone levels may be dose dependent.

Likelihood Possible Evidence D
Progestin

Theoretically, taking pregnenolone might enhance the effects of progestin.
Pregnenolone is a precursor for several steroid hormones, including progestin.

Likelihood Possible Evidence D
Testosterone

Theoretically, taking pregnenolone might enhance the effects of testosterone.
Pregnenolone is a precursor for several steroid hormones, including testosterone. However, preliminary clinical research shows that taking pregnenolone 30-500 mg orally daily for up to 8 weeks does not affect testosterone levels.

Likelihood Possible Evidence D
Pregnenolone full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Pregnenolone 5 mg, from the product label.

Douglas Laboratories

See all Douglas Laboratories products
Name
Douglas Laboratories
Street Address
600 Boyce Road
City
Pittsburgh
State
PA
ZipCode
15205
Phone Number
1.800.245.4440
Web Address
www.douglaslabs.com
Pharmacist Counseling Corner

Pregnenolone 5 mg by Douglas Laboratories: Common Questions

Does Pregnenolone 5 mg by Douglas Laboratories interact with any medications?
Yes. Based on its ingredients, Pregnenolone 5 mg has a known interaction with 82 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Pregnenolone 5 mg contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
What is pregnenolone, and what does it do in my body?
Pregnenolone is a hormone your body naturally produces. It acts as a building block (we call it a precursor) that your system converts into other steroid hormones like estrogen, progesterone, and testosterone. This supplement provides extra pregnenolone to support that natural process.
Can I take this if I'm pregnant or breastfeeding?
No. The safety notes advise against pregnenolone during pregnancy due to unknown risks, and also advise against it while breastfeeding because there isn't enough safety information. Talk with your doctor or pharmacist about what's safe for you during these times.
What side effects might I experience?
The most commonly reported side effects are acne, agitation, diarrhea, drowsiness, excitement, hair loss, skin abscess, sweating, and tremor. Less common reports include depressive feelings, increased appetite, and a sun-sensitive skin rash, though the connection to pregnenolone isn't always certain.
Does pregnenolone actually work for Alzheimer disease, bipolar disorder, or back pain?
We don't have enough reliable evidence to say. The data we hold rates pregnenolone as having insufficient evidence for these uses—the research just isn't solid enough yet to confirm it works.
Why do I need to be careful if I take birth control or hormone therapy?
Pregnenolone is a precursor for estrogen and progestin. Taking it alongside estrogens or progestins may enhance their effects in your body, which could change how your medication works. That's why you need to check with your doctor before combining them.
I take a benzodiazepine like Valium. Is this product safe with it?
Early research shows that long-term pregnenolone use may actually reduce how well benzodiazepines work at calming you down. This is a Moderate severity interaction, so talk with your doctor or pharmacist before taking pregnenolone with any sedative.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Pregnenolone 5 mg label
Go deeper

The Full Monographs Behind Pregnenolone 5 mg’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Pregnenolone

Interacts with 82 drugs

Pregnenolone is a hormone your body makes naturally and a building block for other hormones like cortisol, DHEA, estrogen, and testosterone. It is sold as a supplement for memory, mood, and...

Read the full Pregnenolone monograph →
Sources

Sources & How We Checked

Pregnenolone 5 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 6 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Pregnenolone 6 references
  1. Devlin TM, ed. Textbook of Biochemistry With Clinical Correlations. third ed. New York: Wiley-Liss Inc., 1992.
  2. Fung LK, Libove RA, Phillips J, Haddad F, Hardan AY.Brief report: an open-label study of the neurosteroid pregnenolone in adults with autism spectrum disorder. J Autism Dev Disord 2014;44(11):2971-7. PubMed
  3. Brown ES, Park J, Marx CE, et al. A randomized, double-blind, placebo-controlled trial of pregnenolone for bipolar depression. Neuropsychopharmacology 2014;39(12):2867-73. PubMed
  4. Ritsner MS, Gibel A, Shleifer T, et al. Pregnenolone and dehydroepiandrosterone as an adjunctive treatment in schizophrenia and schizoaffective disorder: an 8-week, double-blind, randomized, controlled, 2-center, parallel-group trial. J Clin Psychiatry 20 PubMed
  5. Meieran SE, Reus VI, Webster R, Shafton R, Wolkowitz OM. Chronic pregnenolone effects in normal humans: attenuation of benzodiazepine-induced sedation. Psychoneuroendocrinology 2004;29(4):486-500. PubMed
  6. Marx CE, Keefe RS, Buchanan RW, et al. Proof-of-concept trial with the neurosteroid pregnenolone targeting cognitive and negative symptoms in schizophrenia. Neuropsychopharmacology 2009;34(8):1885-903. PubMed

See these in context on the Pregnenolone monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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