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Dietary supplement

Skullcap Ingredients & Drug Interactions

by Red Moon Herbs

Skullcap label
See full label image
Liquid Category: 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 Skullcap 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

Skullcap is a dietary supplement by Red Moon Herbs with 1 active ingredient. Its ingredients are commonly taken for anxiety and stress, trouble sleeping, nervous tension.Based on those ingredients, 248 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Skullcap Flowering Top Extract, Fresh. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Skullcap by Red Moon Herbs

Ask about any prescription or over-the-counter medication and we check it for interactions with Skullcap by Red Moon Herbs — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Skullcap by Red Moon Herbs

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 Jul 11, 2026

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 1 active ingredient.

This product contains one active ingredient: Skullcap Flowering Top Extract made from fresh plant material. The liquid also contains water and alcohol as inactive ingredients.

Does it work?

Insufficient evidence
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
Insufficient

There isn't enough reliable clinical evidence to rate this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: anxiety, stress, and sleep support.
  • We looked for evidence on: Anxiety, Insomnia, Stress, Nervous tension, General relaxation.
  • The closest evidence on file: Skullcap is rated "Insufficient Reliable Evidence To Rate" for Anxiety (Natural Medicines).
  • Also on file: Skullcap is rated "Insufficient Reliable Evidence To Rate" for Insomnia, Stress.

The evidence we hold on skullcap doesn't support its use for any of the conditions it's commonly marketed for—epilepsy, stress relief, stroke recovery, spasticity, contact dermatitis, or premenstrual dysphoric disorder (PMDD). For all of these, the data shows insufficient reliable evidence to rate whether it works.

That doesn't mean it definitely doesn't work; it means we don't have strong enough research to say either way.

The evidence, ingredient by ingredient Skullcap

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.

Skullcap is often used only for short stretches, but evidence on its safety is limited and product quality varies—so use it carefully. The most common side effects reported with oral use are sedation, cognitive impairment (trouble thinking clearly), and digestive upset.

A small number of people taking higher doses (350 mg three times daily) reported mild digestive disturbances. One person on that same dose reported vivid dreams, though it's unclear whether skullcap caused it.

During pregnancy, there isn't enough safety data, so it's best avoided. While breastfeeding, safety is unknown, so avoid it as well.

Side effects, ingredient by ingredient Skullcap

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 — Skullcap.
  • The most serious interaction on file is rated Moderate.
  • For scale: 248 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.

Check with your pharmacist if you take CNS depressants: sedating antidepressants, benzodiazepines, sleep aids, opioid pain relievers, or anticonvulsants. Combining any of these with skullcap could increase sedation and cognitive impairment.

Also disclose any alcohol use, since skullcap may add to alcohol's depressant effects.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with insufficient evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

If you take any CNS depressants—sleeping pills, anti-anxiety medications, opioids, or drink alcohol—talk to your pharmacist before adding this product. The evidence for what skullcap actually does isn't established in our data.

Pregnancy and breastfeeding are reasons to skip it.

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 Oct 24, 2024.

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 Skullcap, straight from the product label.

Brand Red Moon Herbs
Barcode (UPC) 857999002399
Net contents 1 Fluid Ounce(s); 30 mL
Market status On market
Date entered into DSLD Oct 24, 2024
DSLD ID 319318
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years), Children (All), Infants/Baby (0 - 1 Year), Seniors/Mature (>50 Years)
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 Skullcap by Red Moon Herbs, 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:
25 Drop(s)
Maximum serving Sizes:
50 Drop(s)
UPC/BARCODE
857999002399
IngredientAmount% DV
Skullcap Flowering Top Extract, Fresh0 NP--

Other ingredients: Water, Alcohol

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 use: Shake well. Take 25-50 drops 1-3 times daily in a little water.

General Statements

Red Moon Herbs Est. 1994 Still made the wise woman way

FDA Statement of Identity

Dietary Supplement

Formula

Fresh Appalachian extracts for the whole family

Formulation

Fresh Appalachian extracts for the whole family

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

See for yourself

Skullcap by Red Moon Herbs label

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

Skullcap 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 Skullcap by Red Moon Herbs

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

Serving size25 Drop(s) Dosage formLiquid Amounts shown are per serving.

Skullcap Flowering Top Extract, Fresh

Interacts with
248 drugs
0 NP per serving

American skullcap is an herb traditionally used to calm anxiety and promote relaxation, but solid human evidence is very limited. It is generally cons...

Skullcap Flowering Top Extract, Fresh monograph & interactions

Other (inactive) ingredients: Water, Alcohol. These complete the product’s ingredient list but are not active constituents.

Interaction report

Skullcap by Red Moon Herbs Drug Interactions

Want to check YOUR meds against Skullcap?

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
248Drugs
248 Moderate

Ingredients driving the most interactions

Skullcap Flowering Top Extract, Fresh 248

Individual Drug Interactions

The ingredients in Skullcap interact with 248 drugs. Click any drug to see the details.

1 of the 1 ingredient in Skullcap interact with drugs. Each result below shows which ingredient is responsible. Skullcap Flowering Top Extract, Fresh

Each ingredient & the kinds of drugs it affects

For each ingredient in Skullcap 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.

Skullcap Flowering Top Extract, Fresh1 drug type · 248 drugs

Cns Depressants

Theoretically, skullcap can have additive effects when used with other CNS depressants.
Animal and clinical research suggests that skullcap can cause sedation and cognitive impairment.

Likelihood Possible Evidence D
Skullcap Flowering Top Extract, Fresh full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Skullcap, from the product label.

Red Moon Herbs

See all Red Moon Herbs products
Name
Red Moon Herbs
City
Asheville
State
NC
Phone Number
888-929-0777
Web Address
redmoonherbs.com
Pharmacist Counseling Corner

Skullcap by Red Moon Herbs: Common Questions

Does Skullcap by Red Moon Herbs interact with any medications?
Yes. Based on its ingredients, Skullcap has a known interaction with 248 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Skullcap 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 Skullcap while pregnant?
No. There isn't enough safety data on skullcap during pregnancy, so the advice is to avoid it. Talk with your doctor or pharmacist about alternatives.
Can I take Skullcap while breastfeeding?
No. Safety isn't known while breastfeeding, so it's best to avoid it. Ask your doctor or pharmacist what options might work better for you.
What are the side effects of Skullcap?
The most common ones are sedation, trouble thinking clearly (cognitive impairment), and digestive problems. At higher doses, sedation and cognitive impairment become more likely. One person reported vivid dreams, though it's unclear if skullcap caused it.
Does Skullcap actually work for stress or anxiety?
We don't have reliable evidence to say. The data shows insufficient reliable evidence to rate skullcap for stress, so we can't confirm whether it helps.
Is this product safe to use long-term?
Skullcap is typically used short-term, and the evidence on long-term safety is limited. Product quality also varies. Use it carefully and talk to your pharmacist about how long you plan to take it.

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.

Skullcap label
Go deeper

The Full Monographs Behind Skullcap’s Ingredients

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

Herb & supplement monograph

Skullcap

Interacts with 248 drugs

American skullcap is an herb traditionally used to calm anxiety and promote relaxation, but solid human evidence is very limited. It is generally considered relatively safe for short-term us...

Read the full Skullcap monograph →
Sources

Sources & How We Checked

Skullcap'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 3 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.

Skullcap 3 references
  1. Wolfson P, Hoffmann DL. An investigation into the efficacy of Scutellaria lateriflora in healthy volunteers. Altern Ther Health Med 2003;9:74-8.
  2. Awad, R., Arnason, J. T., Trudeau, V., Bergeron, C., Budzinski, J. W., Foster, B. C., and Merali, Z. Phytochemical and biological analysis of skullcap (Scutellaria lateriflora L.): a medicinal plant with anxiolytic properties. Phytomedicine. 2003;10(8):6 PubMed
  3. Brock C, Whitehouse J, Tewfik I, Towell T. American skullcap (Scutellaria lateriflora): a randomised, double-blind placebo-controlled crossover study of its effects on mood in healthy volunteers. Phytother Res 2014;28(5):692-8.

See these in context on the Skullcap 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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