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Dietary supplement

Thyroid Calming Ingredients & Drug Interactions

by Herb Pharm

Thyroid Calming label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 30, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Thyroid Calming 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

Thyroid Calming is a dietary supplement by Herb Pharm with 4 active ingredients. Its ingredients are commonly taken for mild overactive thyroid symptoms, heart palpitations and rapid heartbeat, anxiety and restlessness.Based on those ingredients, 273 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Lemon Balm Aerial Parts Extract, Fresh, Undried, Motherwort Flowering Aerial Parts Extract, Bugleweed flowering aerial parts extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Thyroid Calming by Herb Pharm

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HelloPharmacist Scorecard of Thyroid Calming by Herb Pharm

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 4 active ingredients.
  • “Proprietary Extract Blend” is a proprietary blend — the label gives one combined amount (654 mg) without saying how much of each component you get.

Thyroid Calming contains four active ingredients. Bugleweed (flowering aerial parts extract) is traditionally used for thyroid concerns.

Cactus grandiflorus, or cereus (fresh stem extract), is included for its effects on the heart and nervous system. Lemon balm (fresh aerial parts extract) is added for stress and mood support.

Motherwort (flowering aerial parts extract) completes the blend for additional cardiovascular and calming effects. The product comes in liquid form and contains cane alcohol, water, and glycerin as inactive ingredients.

Does it work?

Moderate 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
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: support healthy thyroid function.
  • We looked for evidence on: Hyperthyroidism, Anxiety, Stress, Insomnia, Arrhythmia, Menopausal symptoms — and 2 related terms.
  • The strongest evidence on file: Lemon Balm is rated "Possibly Effective" for Stress (Natural Medicines).
  • Also on file: Motherwort is rated "Insufficient Reliable Evidence To Rate" for Anxiety, Arrhythmia, Hyperthyroidism, Insomnia, and more.
  • Also on file: Bugleweed is rated "Insufficient Reliable Evidence To Rate" for Hyperthyroidism.

The evidence for this product's ingredients is mixed. Bugleweed, cactus grandiflorus, and motherwort all lack reliable evidence to support their use for hyperthyroidism, the main condition someone might reach for this product for — the data rates them as insufficient evidence.

Lemon balm is possibly effective for stress and cold sores, which may play a supporting role. Overall, the scientific backing for using this product specifically for thyroid support is not established in our data.

The evidence, ingredient by ingredient Bugleweed Cereus Lemon Balm Motherwort

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 3 of the 4 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 4 of 4.
  • General safety write-ups exist for 4 of 4.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Lemon balm is generally well tolerated for short-term use in healthy adults, though long-term safety isn't well studied. A small number of people report dizziness or sedation, though it doesn't happen more often than with placebo.

Motherwort and bugleweed are tolerated short-term, but human safety data are limited. Motherwort in amounts over 3 grams can cause uterine bleeding, and it and motherwort leaves may cause contact dermatitis or photosensitivity.

Fresh cereus juice may cause mouth burning, nausea, vomiting, or diarrhea in some people. Bugleweed is rated likely unsafe in pregnancy because it may affect hormone levels.

Lemon balm is best avoided in pregnancy unless your doctor advises otherwise — the data isn't enough to know either way. Motherwort is rated likely unsafe in pregnancy because it's traditionally thought to stimulate the uterus.

Bugleweed should not be used while breastfeeding because it may reduce milk production. Lemon balm and motherwort should be avoided while breastfeeding due to insufficient safety data.

Cereus has no reliable safety data for pregnancy or breastfeeding.

Side effects, ingredient by ingredient Bugleweed Cereus Lemon Balm Motherwort

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?
  • 4 of the 4 matched ingredients can interact with medications — Motherwort, Bugleweed, Lemon Balm, Cereus.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: heart-rhythm medications.
  • For scale: 273 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 this, double-check with your pharmacist or doctor if you're on thyroid hormone replacement (like levothyroxine), any CNS depressants (sedatives, sleep aids, anxiety meds, or pain relievers that cause drowsiness), digoxin (a heart medication), or MAOIs (older antidepressants). All of these have documented interactions with ingredients in this product.

Check your own medication Run your meds through the checker above

The bottom line

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

This product is aimed at people interested in natural thyroid support, but the evidence for its main ingredients in that role is not established. If you take thyroid hormones, CNS depressants, digoxin, or MAOIs, you need to check your exact medications before starting.

Talk to your pharmacist or doctor first — especially if you're pregnant, breastfeeding, or taking any prescription drugs.

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

Assessment coverage: 4 of 4 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Aug 22, 2025.

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 Thyroid Calming, straight from the product label.

Brand Herb Pharm
Barcode (UPC) 090800000768
Net contents 1 Fluid Ounce(s); 30 mL
Market status On market
Date entered into DSLD Aug 22, 2025
DSLD ID 336578
Product type Botanical
Supplement form Liquid
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 Thyroid Calming by Herb Pharm, 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:
0.7 mL
Maximum serving Sizes:
0.7 mL
Servings per container
42
UPC/BARCODE
090800000768
IngredientAmount% DV
Proprietary Extract Blend654 mg--
Bugleweed flowering aerial parts extract0 NP--
Cactus grandiflorus Stem Extract, Fresh, Undried0 NP--
Lemon Balm Aerial Parts Extract, Fresh, Undried0 NP--
Motherwort Flowering Aerial Parts Extract0 NP--

Other ingredients: Cane Alcohol, Water, Distilled, Glycerin

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 before using Adults: Add 1 squeeze of the dropper bulb to 2 oz. of water or juice, 2 to 4 times per day. Best taken between meals.

Precautions

Caution: Seek expert medical advice before taking during pregnancy or nursing.

Not for use in hypothyroidism or thyroid enlargement.

Use with caution in persons taking thyroid & heart medications.

Keep out of the reach of children

Storage

Store away from heat & light

Formulation

System restoration Endocrine

Gluten-free

FDA Statement of Identity

Herbal Supplement

FDA Disclaimer Statement

This statement has not been evaluated by the FDA. This product is 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

Thyroid Calming by Herb Pharm label

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

Thyroid Calming 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 Thyroid Calming by Herb Pharm

These are the 4 active ingredients this product is made of. Select any to open its full monograph.

Serving size0.7 mL Dosage formLiquid Servings per container42 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

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

Interaction report

Thyroid Calming by Herb Pharm Drug Interactions

Want to check YOUR meds against Thyroid Calming?

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.

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273Drugs
273 Moderate

Ingredients driving the most interactions

Lemon Balm Aerial Parts Extract, Fresh, Undried 264
Motherwort Flowering Aerial Parts Extract 248
Bugleweed flowering aerial parts extract 16
Cactus grandiflorus Stem Extract, Fresh, Undried 10

Individual Drug Interactions

The ingredients in Thyroid Calming interact with 273 drugs. Click any drug to see the details.

4 of the 4 ingredients in Thyroid Calming interact with drugs. Each result below shows which ingredient is responsible. Lemon Balm Aerial Parts Extract, Fresh, Undried Motherwort Flowering Aerial Parts Extract Bugleweed flowering aerial parts extract Cactus grandiflorus Stem Extract, Fresh, Undried

Each ingredient & the kinds of drugs it affects

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

Lemon Balm Aerial Parts Extract, Fresh, Undried2 drug types · 264 drugs

Cns Depressants

Theoretically, concomitant use of lemon balm might have additive effects with CNS depressant drugs.
Lemon balm seems to have CNS depressant activity in animals and in humans.

Likelihood Possible Evidence B
Thyroid Hormone

Theoretically, lemon balm might interfere with thyroid hormone replacement therapy.
In vitro, constituents of lemon balm extract bind to thyroid stimulating hormone (TSH), preventing TSH receptor-binding and leading to the inhibition of TSH-stimulated adenylate cyclase activity. In animals, lemon balm extract has been shown to decrease levels of circulating TSH and inhibit thyroid secretion.

Likelihood Possible Evidence D
Lemon Balm Aerial Parts Extract, Fresh, Undried full monograph & interactions

Motherwort Flowering Aerial Parts Extract1 drug type · 248 drugs

Cns Depressants

Theoretically, taking motherwort concomitantly with other CNS depressants may increase the risk of sedation.
Motherwort has been reported to cause CNS depression and sedation.

Likelihood Possible Evidence D
Motherwort Flowering Aerial Parts Extract full monograph & interactions

Bugleweed flowering aerial parts extract1 drug type · 16 drugs

Thyroid Hormone

Theoretically, bugleweed may alter thyroid function.
Concomitant use of bugleweed may reduce the effects of thyroid hormones by blocking peripheral conversion of thyroxine (T4) to triiodothyronine (T3).

Likelihood Probable Evidence D
Bugleweed flowering aerial parts extract full monograph & interactions

Cactus grandiflorus Stem Extract, Fresh, Undried2 drug types · 10 drugs

Digoxin (Lanoxin)

Cereus may potentiate the actions of cardiac glycosides and may enhance the effect of other cardiac drugs.

Likelihood Possible Evidence D
Monoamine Oxidase Inhibitors (Maois)

Theoretically, excessive doses of cereus may interact with MAOIs, because of the tyramine content.

Likelihood Possible Evidence D
Cactus grandiflorus Stem Extract, Fresh, Undried full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Thyroid Calming, from the product label.

Herb Pharm

See all Herb Pharm products
Name
Herb Pharm
City
Williams
State
OR
ZipCode
97544
Phone Number
800-348-4372
Web Address
www.herb-pharm.com
Pharmacist Counseling Corner

Thyroid Calming by Herb Pharm: Common Questions

Does Thyroid Calming by Herb Pharm interact with any medications?
Yes. Based on its ingredients, Thyroid Calming has a known interaction with 273 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Thyroid Calming contains 4 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is 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 this if I'm on thyroid medication?
Not without checking with your pharmacist or doctor first. Two ingredients here — bugleweed and lemon balm — may interfere with how thyroid hormones work in your body. Bugleweed may reduce the effect of your medication, and lemon balm may interfere with your body's response to TSH. You need professional guidance before mixing them.
Is this safe to use while pregnant?
No. Bugleweed is rated likely unsafe because of its effects on hormones, and motherwort is rated likely unsafe because it's traditionally thought to stimulate the uterus. Lemon balm and cereus don't have enough safety data. Avoid this product during pregnancy unless your doctor has specifically advised you to use it.
Can I breastfeed while taking Thyroid Calming?
No. Bugleweed may reduce milk production and should not be used while breastfeeding. Lemon balm and motherwort don't have enough safety data, so they're best avoided too. If you're nursing and interested in this type of support, talk to your doctor or pharmacist first.
What does lemon balm in this product do?
Lemon balm is possibly effective for stress and cold sores. In this formula, it's likely included for its calming properties to complement the other herbs. However, it may also cause sedation in some people and can theoretically add to the drowsiness of sedative medications.
Can this liquid cause side effects?
Most people tolerate the ingredients short-term without trouble. Lemon balm may cause dizziness or sedation in some, though not more often than placebo. Motherwort may cause diarrhea or stomach upset; use over 3 grams can cause uterine bleeding. Fresh cereus juice may cause nausea, vomiting, or diarrhea. If you experience any of these, stop and talk to your pharmacist.
Does this product have fillers or just the active herbs?
It contains inactive ingredients — cane alcohol, distilled water, and glycerin — which are used to extract and preserve the herbal ingredients in liquid form. These are standard in herbal extracts like this one.

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.

Thyroid Calming label
Go deeper

The Full Monographs Behind Thyroid Calming’s Ingredients

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

Herb & supplement monograph

Bugleweed

Interacts with 16 drugs

Bugleweed is a traditional herb most often used for mild overactive thyroid symptoms and the rapid heartbeat that can come with it, but high-quality human evidence is very limited. Because i...

Read the full Bugleweed monograph → Herb & supplement monograph

Cereus

Interacts with 10 drugs

Cereus (often called night-blooming cereus) is a cactus traditionally used in folk and homeopathic medicine for heart-related complaints like palpitations. High-quality human evidence suppor...

Read the full Cereus monograph → Herb & supplement monograph

Lemon Balm

Interacts with 264 drugs

Lemon balm is a gentle, lemon-scented mint-family herb traditionally used to ease stress, support sleep, and calm digestion, and topically for cold sores. Early studies are promising but gen...

Read the full Lemon Balm monograph → Herb & supplement monograph

Motherwort

Interacts with 248 drugs

Motherwort is a traditional herb in the mint family long used for anxiety, heart palpitations, and women's reproductive complaints, but solid human evidence is very limited. It should be avo...

Read the full Motherwort monograph →
Sources

Sources & How We Checked

Thyroid Calming'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 25 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.

Bugleweed 4 references
  1. Blumenthal M, ed. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. Trans. S. Klein. Boston, MA: American Botanical Council, 1998.
  2. Schulz V, Hansel R, Tyler VE. Rational Phytotherapy: A Physician's Guide to Herbal Medicine. Terry C. Telger, transl. 3rd ed. Berlin, GER: Springer, 1998.
  3. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  4. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.

See these in context on the Bugleweed monograph →

Cereus 3 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  3. Fetrow CW, Avila JR. Professional's Handbook of Complementary & Alternative Medicines. 1st ed. Springhouse, PA: Springhouse Corp., 1999.

See these in context on the Cereus monograph →

Lemon Balm 12 references
  1. Wolbling RH, Leonhardt K. Local therapy of herpes simplex with dried extract from Melissa officinalis. Phytomedicine 1994;1:25-31.
  2. Akhondzadeh S, Noroozian M, Mohammadi M, et al. Melissa officinalis extract in the treatment of patients with mild to moderate Alzheimer's disease: a double blind, randomised, placebo controlled trial. J Neurol Neurosurg Psychiatry 2003;74:863-6. PubMed
  3. Kennedy DO, Scholey AB, Tildesley NT, et al. Modulation of mood and cognitive performance following acute administration of Melissa officinalis (lemon balm). Pharmacol Biochem Behav 2002;72:953-64. PubMed
  4. Albrecht M, Berger W, Laux P, Schmidt U, et al. Psychopharmaka und Verkehrssicherheit. Der Einfluß von Euvegal® - Dragees forte auf die Fahrtüchtigkeit und Kombinationswirkungen mit Alkohol Z Allg Med 1995;71:1215-25.
  5. Herberg, KW. Nebenwirkungen pflanzlicher Beruhigungsmittel/ Leistung und Befinden nach Einnahme einer Baldrian-Hopfen-Kombination. Z.Allg Med 1996;72:234-240.
  6. Soulimani R, Fleurentin J, Mortier F, et al. Neurotropic action of the hydroalcoholic extract of Melissa officinalis in the mouse. Planta Med. 1991 Apr;57:105-9.
  7. Sourgens H, Winterhoff H, Gumbinger HG, et al. Antihormonal effects of plant extracts. TSH- and prolactin-suppressing properties of Lithospermum officinale and other plants. Planta Med. 1982 Jun;45:78-86. DOI
  8. Auf'mkolk M, Ingbar JC, Amir SM, et al. Inhibition by certain plant extracts of the binding and adenylate cyclase stimulatory effect of bovine thyrotropin in human thyroid membranes. Endocrinology. 1984 Aug;115:527-34. PubMed
  9. Santini F, Vitti P, Ceccarini G, et al. In vitro assay of thyroid disruptors affecting TSH-stimulated adenylate cyclase activity. J Endocrinol Invest. 2003 Oct;26:950-5. PubMed
  10. Alijaniha F, et al. Heart palpitation relief with Melissa officinalis leaf extract: double blind, randomized, placebo controlled trial of efficacy and safety. J Ethnopharmacol. 2015;164:378-384. doi: 10.1016/j.jep.2015.02.007. Epub 2015 Feb 11. PubMed
  11. Araj-Khodaei M, Noorbala AA, Yarani R, et al. A double-blind, randomized pilot study for comparison of Melissa officinalis L. and Lavandula angustifolia Mill. with Fluoxetine for the treatment of depression. BMC Complement Med Ther. 2020;20(1):207. PubMed
  12. Kucuk U, Pham M, Raza Raja MH, Saad Shaukat MH, Clark R. Transient complete atrioventricular block associated with herbal supplement use. S D Med 2023;76(7):311-313.

See these in context on the Lemon Balm monograph →

Motherwort 6 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  3. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  4. Wojtyniak K, Szymanski M, Matlawska I. Leonurus cardiaca L. (motherwort): a review of its phytochemistry and pharmacology. Phytother Res 2013;27(8):1115-20.
  5. Xia WT, Zhou H, Wang Y, et al. Motherwort injection in preventing post-abortion hemorrhage after induced abortion: A multi-center, prospective, randomized controlled trial. Explore (NY). 2019. pii: S1550-8307(19)30447-1. PubMed
  6. Cao Shan DOSOGC, Zhang W, Zhao Z, et al. Post-marketing safety surveillance and reevaluation of Motherwort injection: A clinical study of 10 094 cases. J Tradit Chin Med. 2018 Aug;38(4):625-635. DOI

See these in context on the Motherwort 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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