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Dietary supplement

Scullcap Powder Ingredients & Drug Interactions

by TerraVita Premium Collection

Scullcap Powder label
See full label image
Powder 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 Scullcap Powder 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

Scullcap Powder is a dietary supplement by TerraVita Premium Collection 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 powder. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Scullcap Powder by TerraVita Premium Collection

Ask about any prescription or over-the-counter medication and we check it for interactions with Scullcap Powder by TerraVita Premium Collection — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Scullcap Powder by TerraVita Premium Collection

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 10, 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: skullcap powder. Skullcap is a plant traditionally used to support relaxation and calm, though the scientific evidence for its effectiveness is limited.

There are no inactive ingredients listed for this powder.

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 Skullcap product and its label doesn't state a use — see Skullcap'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 rates skullcap's effectiveness as insufficient for all the conditions listed on this product—epilepsy, stress, stroke, spasticity, contact dermatitis, and premenstrual dysphoric disorder (PMDD). That means the data aren't strong enough yet to say whether it works for any of these uses.

If you're thinking about this product for a specific reason, talk it over with your doctor or pharmacist to weigh what we know so far.

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 generally well tolerated when used short-term, but product quality varies and long-term safety data are limited, so use it with care. The most common side effects reported are sedation, cognitive impairment (trouble thinking clearly), and mild digestive disturbances—mild digestive issues showed up in around 9% of people taking higher doses over two weeks.

One person also reported vivid dreams, though it's unclear if skullcap caused it. At lower single doses (100 mg), CNS side effects weren't seen in the data we hold; at 200 mg and higher, sedation and cognitive problems became more likely.

During pregnancy, there isn't enough safety data, so the evidence advises against it. While breastfeeding, safety is unknown, so it's best avoided.

There's no data on file for how skullcap affects nursing, so talk with your doctor or pharmacist before taking it if you're pregnant or breastfeeding.

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.

Before taking this product, check with your pharmacist or doctor if you're on any CNS depressants—sedatives, sleep aids, tranquilizers, or certain pain and anxiety medications. Skullcap can add to their effects and increase drowsiness and confusion.

That's a Moderate interaction, and your healthcare provider can help you decide if it's safe to use together or if the timing needs adjusting.

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.

Skullcap Powder is an herbal option if you're interested in relaxation support, but the evidence for its effectiveness is too thin to confirm it works for the conditions listed. It does carry a Moderate interaction risk with CNS depressants, so if you take any sedatives, sleep aids, or certain pain relievers, check your exact medications with your pharmacist before starting.

It's not recommended in pregnancy or while breastfeeding. Talk it over with your doctor or pharmacist to see if it fits your needs.

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 Dec 13, 2022.

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 Scullcap Powder, straight from the product label.

Brand TerraVita Premium Collection
Barcode (UPC) 064435108274
Net contents 1 Ounce(s)
Market status On market
Date entered into DSLD Dec 13, 2022
DSLD ID 282038
Product type Botanical
Supplement form Powder
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 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 Scullcap Powder by TerraVita Premium Collection, 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:
0.25 Teaspoon(s)
Maximum serving Sizes:
0.25 Teaspoon(s)
Servings per container
28
UPC/BARCODE
064435108274
IngredientAmount% DV
Skullcap powder1000 mg--

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.
FDA Statement of Identity

A Dietary Supplement

Brand IP Statement(s)

Copyright 2004 TerraVita - Distributed by ZooScape LLC, All Rights Reserved.

Suggested/Recommended/Usage/Directions

Directions Stir 1/4 of a teaspoon into a glass of water and consume 3 times daily, with meals.

General Statements

TerraVita is an exclusive line of premium natural products that use the finest, purest and most potent ingredients in the world. TerraVita's hallmarks are the highest possible standards of purity, potency, stability and freshness. All products are prepared with the greatest quality control, from raw materials through the entire manufacturing process, right up to the moment your product is sealed for freshness and shipped to you.

Please recycle!

FDA Disclaimer Statement

Statements not evaluated by FDA. Product not intended to diagnose, treat, cure, or prevent any disease.

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

See for yourself

Scullcap Powder by TerraVita Premium Collection label

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

Scullcap Powder 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 Scullcap Powder by TerraVita Premium Collection

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

Serving size0.25 Teaspoon(s) Dosage formPowder Servings per container28 Amounts shown are per serving.

Skullcap powder

Interacts with
248 drugs
1000 mg 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 powder monograph & interactions
Interaction report

Scullcap Powder by TerraVita Premium Collection Drug Interactions

Want to check YOUR meds against Scullcap Powder?

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 powder 248

Individual Drug Interactions

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

1 of the 1 ingredient in Scullcap Powder interact with drugs. Each result below shows which ingredient is responsible. Skullcap powder

Each ingredient & the kinds of drugs it affects

For each ingredient in Scullcap Powder 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 powder1 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 powder full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Scullcap Powder, from the product label.

TerraVita Premium Collection

See all TerraVita Premium Collection products
Name
TerraVita Fine Whole Herbs
City
Brampton
State
Ontario
Pharmacist Counseling Corner

Scullcap Powder by TerraVita Premium Collection: Common Questions

Does Scullcap Powder by TerraVita Premium Collection interact with any medications?
Yes. Based on its ingredients, Scullcap Powder 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?
Scullcap Powder 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 skullcap and what's it used for?
Skullcap is a plant that's traditionally been used to promote relaxation and calm. The product facts list it for epilepsy, stress, stroke, spasticity, contact dermatitis, and premenstrual dysphoric disorder, though the scientific evidence is insufficient for any of these uses so far.
Can I take this if I'm pregnant or breastfeeding?
No, it's best avoided during pregnancy because there isn't enough safety data. Similarly, safety is unknown while breastfeeding, so you should avoid it then too. Talk with your doctor or pharmacist before taking it if either applies to you.
What side effects might I notice?
The most common ones are sedation, cognitive impairment, and digestive disturbances. Mild digestive issues were reported in about 9% of people taking higher doses. Vivid dreams were reported once but may not be linked to skullcap. At low single doses (100 mg), side effects on thinking and alertness weren't observed; higher doses (200 mg and up) were more likely to cause them.
Why can't you rate how well it works?
The clinical evidence for skullcap isn't strong or plentiful enough yet to say whether it actually works for the conditions listed. That's why every use on this product is rated as insufficient evidence.
Is there anything in this powder besides skullcap?
No, this is skullcap powder only—there are no inactive ingredients like fillers or binders listed.
Should I be concerned about product quality?
Yes. The safety notes emphasize that skullcap products vary in quality and the evidence is limited, so you're advised to use it with care. Check the brand's reputation and third-party testing if possible.

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.

Scullcap Powder label
Go deeper

The Full Monographs Behind Scullcap Powder’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

Scullcap Powder'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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