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Dietary supplement

Pregnenolone 100 mg Ingredients & Drug Interactions

by Double Wood Supplements

Pregnenolone 100 mg label
See full label image
Capsule 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 100 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 100 mg is a dietary supplement by Double Wood Supplements 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 100 mg by Double Wood Supplements

Ask about any prescription or over-the-counter medication and we check it for interactions with Pregnenolone 100 mg by Double Wood Supplements — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Pregnenolone 100 mg by Double Wood Supplements

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 100 mg per capsule. Pregnenolone is a naturally occurring hormone precursor — a compound your body normally makes and uses as a starting point to produce other hormones like estrogen, progesterone, and testosterone.

The capsule also contains bovine gelatin and rice flour as inactive ingredients.

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 data we hold does not establish that pregnenolone is effective for any condition. It's been studied for alcohol use disorder, Alzheimer disease, autism spectrum disorder, back pain, and bipolar disorder, but the evidence in each case is rated insufficient to say whether it works or not.

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 commonly reported side effects in studies were acne, agitation, diarrhea, drowsiness, excitement, hair loss, sweating, and tremor.

A few cases of skin rash and photosensitivity (sun sensitivity) have also been reported, and some people noted changes in mood or appetite — though it's unclear if those were directly caused by the supplement. Because pregnenolone is a hormone with limited safety data in humans, use only under guidance from your doctor or pharmacist.

The safety data advises against pregnenolone during pregnancy and while breastfeeding due to unknown risks.

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 you take pregnenolone, double-check with your doctor or pharmacist if you use estrogens (including birth control), progestins, testosterone, or progesterone — pregnenolone may enhance their effects. Also clear it if you take benzodiazepines (sedatives like diazepam), as early research suggests pregnenolone may reduce how well they work.

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 is a hormone precursor with minimal evidence that it works for common conditions. If you take any hormone-based medications — birth control, HRT, testosterone replacement — or benzodiazepines (sedatives), you'll want to discuss this supplement with your doctor or pharmacist first because it may change how those drugs work.

Talk it over with your own healthcare provider before starting.

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 Feb 25, 2021.

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 100 mg, straight from the product label.

Brand Double Wood Supplements
Barcode (UPC) X001EFBEQF
Net contents 120 Capsule(s)
Market status On market
Date entered into DSLD Feb 25, 2021
DSLD ID 241935
Product type Non-nutrient/non-botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), 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 100 mg by Double Wood Supplements, 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 Capsule(s)
Maximum serving Sizes:
2 Capsule(s)
Servings per container
60
UPC/BARCODE
X001EFBEQF
IngredientAmount% DV
Pregnenolone100 mg--

Other ingredients: bovine gelatin, Rice Flour

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

Directions: Take 1 or 2 capsules early in the day on an empty stomach or as recommended by a healthcare practitioner.

Precautions

Warning: Not for use by individuals under the age of 18 or pregnant. Consult a physician or other licensed health care professional before using this product if you have history of breast cancer, prostate cancer, prostate enlargement, heart disease, low "good" cholesterol (HDL) or if you are using any other dietary supplements, prescription, drug, or over-the-counter drug.

Do not exceed recommended serving. Exceeding recommended serving may case serious side effects including: acne, hair loss, hair growth on face (in women), aggressiveness, irritability, and increased levels of estrogen. Discontinue use and call a physician or licensed healthcare professional immediately if you experience blurred vision, rapid heartbeat, dizziness, or similar symptoms. Do not take if you have a history of seizures.

Warning: Not for use by individuals under the age of 18 or pregnant. Keep out of reach of children.

Storage

Storage: Store product sealed in a cool, dry place.

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Seals/Symbols

Proudly made in USA

Formulation

Made with Non-GMO ingredients Gluten Free

Supports hormonal balance and cognitive function

Formula

100mg per serving

FDA Statement of Identity

Dietary Supplement

General Statements

Pregnenolone DoubleWood Supplements New

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

See for yourself

Pregnenolone 100 mg by Double Wood Supplements label

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

Pregnenolone 100 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 100 mg by Double Wood Supplements

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

Serving size1 Capsule(s) Dosage formCapsule Servings per container60 Amounts shown are per serving.

Pregnenolone

Interacts with
82 drugs
100 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: Bovine gelatin, Rice Flour. These complete the product’s ingredient list but are not active constituents.

Interaction report

Pregnenolone 100 mg by Double Wood Supplements Drug Interactions

Want to check YOUR meds against Pregnenolone 100 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 100 mg interact with 82 drugs. Click any drug to see the details.

1 of the 1 ingredient in Pregnenolone 100 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 100 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 100 mg, from the product label.

Double Wood Supplements

See all Double Wood Supplements products
Name
Double Wood LLC
Street Address
3510 Scotts Ln Ste 219
City
Philadelphia
State
PA
ZipCode
19129-1573
Web Address
www.doublewoodsupplements.com
Pharmacist Counseling Corner

Pregnenolone 100 mg by Double Wood Supplements: Common Questions

Does Pregnenolone 100 mg by Double Wood Supplements interact with any medications?
Yes. Based on its ingredients, Pregnenolone 100 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 100 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.
Can I take pregnenolone if I'm pregnant or breastfeeding?
No. The safety data advises against pregnenolone during pregnancy and while breastfeeding because the risks aren't known. Talk with your doctor or pharmacist about whether there are any safe alternatives.
What side effects might I notice?
The most common ones reported are acne, agitation, diarrhea, drowsiness, excitement, hair loss, and sweating. A few people have also experienced tremor, skin rash, or changes in mood and appetite. Most side effects appear to be mild, though the data is limited.
Does pregnenolone actually work for the conditions it's marketed for?
The evidence isn't strong enough to say. Studies have looked at it for Alzheimer disease, bipolar disorder, autism, back pain, and alcohol use disorder, but in each case the evidence is insufficient to confirm whether it helps.
Why does pregnenolone interact with so many hormone medications?
Pregnenolone is a hormone precursor — your body converts it into estrogen, progesterone, testosterone, and other hormones. If you're already taking hormone medications, adding pregnenolone may push your hormone levels higher than intended, which is why it's important to check with your doctor first.
Is pregnenolone natural?
Yes, pregnenolone is naturally produced by your body, but that doesn't mean the supplement form is risk-free. It's a hormone with limited human safety data, so the guidance is to use it only under professional oversight.

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 100 mg label
Go deeper

The Full Monographs Behind Pregnenolone 100 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 100 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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