Carpenter's Square Ingredients & Drug Interactions
by Pure Herbs
What is this page for?
First and foremost: checking Carpenter's Square 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
Carpenter's Square is a dietary supplement by Pure Herbs with 1 active ingredient. Its ingredients are commonly taken for skin conditions like eczema and psoriasis, minor wounds and rashes, swelling and inflammation.Based on those ingredients, 76 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Figwort Aerial Parts Extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Carpenter's Square by Pure Herbs
Ask about any prescription or over-the-counter medication and we check it for interactions with Carpenter's Square by Pure Herbs — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Carpenter's Square by Pure 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.
What’s inside
Full disclosure
Carpenter's Square contains one active ingredient: Figwort Aerial Parts Extract. This is a plant-based extract made from the above-ground parts of the figwort plant.
It has been used traditionally in herbal medicine, though the specific effects you might expect from this product aren't established in the data we hold.
Does it work?
Couldn't assess
We don't have effectiveness ratings on file for figwort in this product, so we can't tell you whether it works for any particular condition based on our data.
How safe is it?
Some data gaps
Figwort has limited safety information available, so the advice is to use it cautiously and only short-term. The safety data aren't complete enough to recommend it during pregnancy — the guidance is to avoid it.
While breastfeeding, there's no reliable safety data, so it's best to avoid this product as well. No adverse effects are documented in our data, though that absence doesn't guarantee none will occur.
Meds to double-check
Moderate interaction found
Check your medications against this product if you take diuretic drugs (water pills) — figwort could increase potassium loss and your diuretic's effect. If you take lithium, figwort may raise your lithium levels.
Talk it over with your doctor or pharmacist before combining either with Carpenter's Square.
The bottom line
Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and some safety-information gaps remain.
Carpenter's Square is a single-ingredient herbal liquid, but it carries Moderate interaction risks with diuretics and lithium — two drug classes where dosing balance matters a lot. If you take either of these, check with your doctor or pharmacist before starting.
Pregnancy and breastfeeding are times to skip this product based on the safety data available.
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
General information
Key facts about Carpenter's Square, straight from the product label.
| Brand | Pure Herbs |
|---|---|
| Net contents | 4 Fluid Ounce(s); 120 mL |
| Market status | On market |
| Date entered into DSLD | Dec 13, 2022 |
| DSLD ID | 279301 |
| Product type | Botanical |
| Supplement form | Liquid |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Women (not pregnant or lactating) |
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 Carpenter's Square by Pure Herbs, sourced from the NIH Dietary Supplement Label Database.
Tap any ingredient to jump to its full detail below.
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: For adults, mix 2 mL (abt. 1/2 tsp) of extract in 2 fl. oz (60 mL) water one time daily preferably with a meal.
Shake well before use
Formulation
Helps to support a healthy lymphatic system.
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.
Precautions
Warning: Not intended for use by pregnant or nursing women. If you have a medical condition or are taking medication, consult your doctor prior to use.
Discontinue use and consult with your doctor if any adverse reactions occur.
Keep out of reach of children
Brand IP Statement(s)
Pure Herbs, Ltd. Natural Herbal Extracts
FDA Statement of Identity
Dietary Supplement
General Statements
"No expense has been spared to provide the finest nature has to offer."
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Carpenter's Square by Pure Herbs label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
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)The Ingredients in Carpenter's Square by Pure Herbs
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size2 mL Dosage formLiquid Servings per container60 Amounts shown are per serving.
Figwort Aerial Parts Extract
Interacts with76 drugs
Figwort is a traditional herb used mainly for skin problems and minor swelling, but solid human studies are lacking, so its benefits remain unproven....
Figwort Aerial Parts Extract monograph & interactionsOther (inactive) ingredients: None. These complete the product’s ingredient list but are not active constituents.
Carpenter's Square by Pure Herbs Drug Interactions
HelloPharmacist Interaction Report
Figwort Aerial Parts Extract in Carpenter's Square by Pure Herbs does interact with certain medications, and the interactions we know about are Moderate in severity.
The main concern is with diuretic drugs (water pills) — figwort has diuretic properties of its own, which means it could potentially add to the potassium-depleting effect of these medications. If you take a diuretic and add figwort, your potassium level could drop further than expected, and you may need to adjust your potassium supplementation or your diuretic dose.
Read the full breakdown — every affected drug type, severity by severity
Figwort may also affect lithium levels. Because of its diuretic action, figwort could theoretically cause your body to retain lithium rather than excrete it normally, which could raise lithium levels in your blood — a medication where getting the dose right is critical.
Your lithium dose might need adjustment if you start this product.
Before you start Carpenter's Square, use the medication checker below to look up any diuretics, lithium, or other drugs you take — we hold interaction data on 76 individual medications related to this ingredient, and your exact medication list is the only way to be sure.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Carpenter's Square?
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 checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Carpenter's Square interact with 76 drugs. Click any drug to see the details.
1 of the 1 ingredient in Carpenter's Square interact with drugs. Each result below shows which ingredient is responsible. Figwort Aerial Parts Extract
Acetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, Pamabrom, PyrilamineMidol Max Strength PMS, Pamprin, Pamprin ES
How Acetaminophen, Pamabrom, Pyrilamine interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Acetaminophen, Pamabrom, Pyrilamine interactionAcetazolamideAk-Zol, Diamox
How Acetazolamide interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Acetazolamide interactionAmiloride, HydrochlorothiazideAmil-Co, Amilzide, Moduret 25, Moduretic
How Amiloride, Hydrochlorothiazide interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Amiloride, Hydrochlorothiazide interactionAmmonium ChlorideAmmonium Chloride
How Ammonium Chloride interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Ammonium Chloride interactionAtenolol, ChlortalidoneAtenixCo, Tenoret 50, Totaretic
How Atenolol, Chlortalidone interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Atenolol, Chlortalidone interactionAtenolol, ChlorthalidoneTenoretic
How Atenolol, Chlorthalidone interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Atenolol, Chlorthalidone interactionAzilsartan, ChlorthalidoneEdarbyclor
How Azilsartan, Chlorthalidone interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Azilsartan, Chlorthalidone interactionBenazepril, HydrochlorothiazideLotensin HCT
How Benazepril, Hydrochlorothiazide interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Benazepril, Hydrochlorothiazide interactionBendroflumethiazideAprinox, Naturetin, Neo-NaClex
How Bendroflumethiazide interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Bendroflumethiazide interactionBendroflumethiazide, NadololCorzide
How Bendroflumethiazide, Nadolol interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Bendroflumethiazide, Nadolol interactionBendroflumethiazide, PotassiumCentyl K, Neo-NaClex-K
How Bendroflumethiazide, Potassium interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Bendroflumethiazide, Potassium interactionBendroflumethiazide, Rauwolfia SerpentinaRauzide
How Bendroflumethiazide, Rauwolfia Serpentina interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Bendroflumethiazide, Rauwolfia Serpentina interactionBenzthiazideExna
How Benzthiazide interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Benzthiazide interactionBisoprolol, HydrochlorothiazideZiac
How Bisoprolol, Hydrochlorothiazide interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Bisoprolol, Hydrochlorothiazide interactionBumetanideBurinex
How Bumetanide interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Bumetanide interactionBumetanide, PotassiumBurinex K
How Bumetanide, Potassium interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Bumetanide, Potassium interactionCaffeine, Potassium Salicylate, SalicylamideTrim-Elim
How Caffeine, Potassium Salicylate, Salicylamide interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Caffeine, Potassium Salicylate, Salicylamide interactionCandesartan Cilexetil, HydrochlorothiazideAtacand HCT
How Candesartan Cilexetil, Hydrochlorothiazide interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Candesartan Cilexetil, Hydrochlorothiazide interactionCaptopril, HydrochlorothiazideAcezide, Capozide
How Captopril, Hydrochlorothiazide interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Captopril, Hydrochlorothiazide interactionChlorothiazideDiuril
How Chlorothiazide interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Chlorothiazide interactionChlorothiazide, MethyldopaAldochlor, Aldoclor 150, Aldoclor 250
How Chlorothiazide, Methyldopa interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Chlorothiazide, Methyldopa interactionChlorothiazide, ReserpineDiupres
How Chlorothiazide, Reserpine interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Chlorothiazide, Reserpine interactionChlorthalidoneHygroton, Thalitone
How Chlorthalidone interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Chlorthalidone interactionChlorthalidone, ClonidineClorpres, Combipres
How Chlorthalidone, Clonidine interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Chlorthalidone, Clonidine interactionCryptenamine, MethyclothiazideDiutensen
How Cryptenamine, Methyclothiazide interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Cryptenamine, Methyclothiazide interactionCyclothiazideAnhydron, Fluidil
How Cyclothiazide interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Cyclothiazide interactionDeserpidine, HydrochlorothiazideOreticyl, Oreticyl Forte
How Deserpidine, Hydrochlorothiazide interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Deserpidine, Hydrochlorothiazide interactionDeserpidine, MethyclothiazideEnduronyl, Enduronyl Forte
How Deserpidine, Methyclothiazide interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Deserpidine, Methyclothiazide interactionEnalapril Maleate, HydrochlorothiazideVaseretic
How Enalapril Maleate, Hydrochlorothiazide interacts with Carpenter's Square — through 1 ingredient. Tap an ingredient for the detail:
Figwort Aerial Parts ExtractDiuretic Drugs Moderate
Interaction Summary
Theoretically, overuse of figwort might compound diuretic-induced potassium loss.
Read the full Figwort Aerial Parts Extract + Enalapril Maleate, Hydrochlorothiazide interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Carpenter's Square 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.
Figwort Aerial Parts Extract
Diuretic Drugs
Theoretically, overuse of figwort might compound diuretic-induced potassium loss. There is some concern that people taking figwort along with potassium depleting diuretics might have an increased risk for hypokalemia. Initiation of potassium supplementation or an increase in potassium supplement dose may be necessary for some patients. Some diuretics that can deplete potassium include chlorothiazide (Diuril), chlorthalidone (Thalitone), furosemide (Lasix), hydrochlorothiazide (HCTZ, Hydrodiuril, Microzide), and others.
Lithium
Figwort is thought to have diuretic properties. Theoretically, due to these potential diuretic effects, figwort might reduce excretion and increase levels of lithium. The dose of lithium might need to be decreased.
Brand information
Manufacturer and brand details for Carpenter's Square, from the product label.
Pure Herbs
See all Pure Herbs products- Name
- Pure Herbs, Ltd.
- City
- Sterling Heights
- State
- MI
- Phone Number
- (800) 860-4372
- Web Address
- www.pureherbs.com
Carpenter's Square by Pure Herbs: Common Questions
Does Carpenter's Square by Pure Herbs interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Can I take Carpenter's Square if I'm pregnant?
Is it safe to use while breastfeeding?
How long can I use Carpenter's Square?
What does figwort do?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Carpenter's Square is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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.
The Full Monographs Behind Carpenter's Square’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Carpenter's Square'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.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
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 1 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.
Figwort 1 reference
- Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
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