Quassia Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Quassia 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
Quassia is a dietary supplement by Herbalist & Alchemist with 1 active ingredient. Its ingredients are commonly taken for loss of appetite, digestive upset, head lice (topical).Based on those ingredients, 198 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are dried Quassia wood extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Quassia by Herbalist & Alchemist
Ask about any prescription or over-the-counter medication and we check it for interactions with Quassia by Herbalist & Alchemist — 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 Quassia by Herbalist & Alchemist
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
This product contains one active ingredient: dried quassia wood extract. Quassia comes from the heartwood of tropical trees and has been used traditionally in herbal medicine.
The extract is suspended in a liquid base made with distilled water and ethyl alcohol.
Does it work?
No specific claim
The evidence we hold doesn't establish whether quassia works for seborrheic dermatitis, lice, rosacea, or other conditions — the data shows insufficient reliable evidence for any of these uses. That doesn't mean it's ineffective; it means the research we have access to isn't strong enough yet to say one way or the other.
How safe is it?
Well-documented data
Taken by mouth in medicinal amounts, quassia can irritate your mouth and throat lining and cause nausea and vomiting. Long-term use raises a more serious concern: it's been linked to vision changes and even blindness.
The safety data advises against use during pregnancy and while breastfeeding because we don't have enough information to know it's safe in those situations. Applied to the skin, quassia appears generally well tolerated with no reported adverse effects.
Meds to double-check
Moderate interaction found
Before taking Herbalist & Alchemist's Quassia, double-check with your doctor or pharmacist if you take antidiabetes drugs, diuretics, digoxin (Lanoxin), H2-blockers, antacids, or proton pump inhibitors (PPIs). Quassia may lower blood sugar, compound potassium loss, affect heart medication levels, and reduce the effectiveness of acid-reducing drugs.
The bottom line
Scorecard at a glanceFully disclosed formula marketed for general wellness rather than one specific gradeable purpose. Moderate medication interactions have been identified, and safety information is well characterized.
Quassia is best used under the guidance of someone who knows your full medication list — especially if you take diabetes drugs, diuretics, heart medications, or acid-reducing drugs. The risk of digestive upset and the theoretical link to vision problems with long-term use mean it's not a casual-use herb.
Talk with your doctor or pharmacist before starting, particularly if you're pregnant, breastfeeding, or managing a chronic condition.
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 Mar 23, 2018.
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 Quassia, straight from the product label.
| Brand | Herbalist & Alchemist |
|---|---|
| Barcode (UPC) | 667056123543 |
| Net contents | 2 fl. Oz.; 60 mL |
| Market status | On market |
| Date entered into DSLD | Mar 23, 2018 |
| DSLD ID | 174566 |
| Product type | Botanical |
| Supplement form | Liquid |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Kosher |
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 Quassia by Herbalist & Alchemist, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| dried Quassia wood extract | 1 mL | -- |
Other ingredients: distilled Water, Ethyl Alcohol
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.
Formula
Quassia amara
OK
General Statements
Promotes healthy digestion
Botanical preparation ratio 1:4
FDA Statement of Identity
Herbal Supplement
Suggested/Recommended/Usage/Directions
Suggested Use: 15-20 drops (0.75-1 mL) in juice or water. Take 3 times per day. Shake well before using.
Precautions
Contraindications: Do not use during pregnancy or give to young children unless otherwise directed by a qualified expert.
Contraindications: Do not use during pregnancy or give to young children unless otherwise directed by a qualified expert. Keep out of children's reach
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.
General
NO. QSA-2 1732MO
Seals/Symbols
OK
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Quassia by Herbalist & Alchemist 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 Quassia by Herbalist & Alchemist
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size0.75 mL Dosage formLiquid Servings per container60 Amounts shown are per serving.
Dried Quassia wood extract
Interacts with198 drugs
Quassia is a tropical wood known for its very bitter taste, traditionally used as a digestive bitter and as a folk remedy for parasites and head lice....
Dried Quassia wood extract monograph & interactionsOther (inactive) ingredients: Distilled Water, Ethyl Alcohol. These complete the product’s ingredient list but are not active constituents.
Quassia by Herbalist & Alchemist Drug Interactions
HelloPharmacist Interaction Report
Herbalist & Alchemist's Quassia does interact with several medication types.
The most serious concern is with antidiabetes drugs — quassia extract may lower blood sugar in a way that adds to what your diabetes medication already does, raising the risk of low blood sugar (hypoglycemia). You'll want to watch your glucose levels closely if you're on insulin or drugs like glimepiride (Amaryl) or glyburide (DiaBeta).
Read the full breakdown — every affected drug type, severity by severity
Quassia also carries Moderate interactions with diuretics (water pills) and digoxin (Lanoxin, a heart medication). Diuretics can already lower potassium, and quassia may make that worse — you might need extra potassium supplementation.
With digoxin, there's a theoretical risk that quassia could boost both the drug's desired and unwanted effects.
Minor interactions exist with acid-reducing medications: H2-blockers like famotidine (Pepcid) and ranitidine (Zantac), antacids, and proton pump inhibitors (PPIs) like omeprazole (Prilosec). Because quassia may increase stomach acid, it could reduce how well these medications work.
Altogether, these interactions span 198 individual medications. Before you start quassia, check your exact prescriptions with the search tool on this page or confirm with your doctor or pharmacist.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Quassia?
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 Quassia interact with 198 drugs. Click any drug to see the details.
1 of the 1 ingredient in Quassia interact with drugs. Each result below shows which ingredient is responsible. dried Quassia wood extract
GliclazideDiamicron
How Gliclazide interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractAntidiabetes Drugs Moderate
Interaction Summary
In animals, quassia extract reduced levels of fasting glucose.
Read the full Dried Quassia Wood Extract + Gliclazide interactionGlimepirideAmaryl
How Glimepiride interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractAntidiabetes Drugs Moderate
Interaction Summary
In animals, quassia extract reduced levels of fasting glucose.
Read the full Dried Quassia Wood Extract + Glimepiride interactionGlipizideGlucotrol, Glucotrol XL
How Glipizide interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractAntidiabetes Drugs Moderate
Interaction Summary
In animals, quassia extract reduced levels of fasting glucose.
Read the full Dried Quassia Wood Extract + Glipizide interactionGlipizide, MetforminMetaglip
How Glipizide, Metformin interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractAntidiabetes Drugs Moderate
Interaction Summary
In animals, quassia extract reduced levels of fasting glucose.
Read the full Dried Quassia Wood Extract + Glipizide, Metformin interactionGlucagonBaqsimi, Glucagon
How Glucagon interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractAntidiabetes Drugs Moderate
Interaction Summary
In animals, quassia extract reduced levels of fasting glucose.
Read the full Dried Quassia Wood Extract + Glucagon interactionGlucoseIV Glucose
How Glucose interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractAntidiabetes Drugs Moderate
Interaction Summary
In animals, quassia extract reduced levels of fasting glucose.
Read the full Dried Quassia Wood Extract + Glucose interactionGlyburideAlbert Glyburide, Diabeta, Glycron, Glynase, Glynase PresTab, Micronase +1 more
How Glyburide interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractAntidiabetes Drugs Moderate
Interaction Summary
In animals, quassia extract reduced levels of fasting glucose.
Read the full Dried Quassia Wood Extract + Glyburide interactionGlyburide, MetforminGlucovance
How Glyburide, Metformin interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractAntidiabetes Drugs Moderate
Interaction Summary
In animals, quassia extract reduced levels of fasting glucose.
Read the full Dried Quassia Wood Extract + Glyburide, Metformin interactionGuanethidine, HydrochlorothiazideEsimil
How Guanethidine, Hydrochlorothiazide interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Guanethidine, Hydrochlorothiazide interactionHydralazine, HydrochlorothiazideApresazide, Apresoline-Esidrix
How Hydralazine, Hydrochlorothiazide interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydralazine, Hydrochlorothiazide interactionHydralazine, Hydrochlorothiazide, ReserpineSer-Ap-Es, Unipres, Uniserp
How Hydralazine, Hydrochlorothiazide, Reserpine interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydralazine, Hydrochlorothiazide, Reserpine interactionHydrochlorothiazideAquazide, Aquazide H, Esidrix, HCTZ, Hydro, Hydro-D +3 more
How Hydrochlorothiazide interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydrochlorothiazide interactionHydrochlorothiazide, IrbesartanAvalide
How Hydrochlorothiazide, Irbesartan interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydrochlorothiazide, Irbesartan interactionHydrochlorothiazide, LabetalolTrandate HCT
How Hydrochlorothiazide, Labetalol interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydrochlorothiazide, Labetalol interactionHydrochlorothiazide, LisinoprilPrinzide, Zestoretic
How Hydrochlorothiazide, Lisinopril interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydrochlorothiazide, Lisinopril interactionHydrochlorothiazide, Losartan PotassiumHyzaar
How Hydrochlorothiazide, Losartan Potassium interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydrochlorothiazide, Losartan Potassium interactionHydrochlorothiazide, MethyldopaAldoril 15, Aldoril 25, Aldoril D30, Methazide
How Hydrochlorothiazide, Methyldopa interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydrochlorothiazide, Methyldopa interactionHydrochlorothiazide, MetoprololLopressor HCT
How Hydrochlorothiazide, Metoprolol interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydrochlorothiazide, Metoprolol interactionHydrochlorothiazide, MoexiprilUniretic
How Hydrochlorothiazide, Moexipril interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydrochlorothiazide, Moexipril interactionHydrochlorothiazide, PindololViskazide
How Hydrochlorothiazide, Pindolol interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydrochlorothiazide, Pindolol interactionHydrochlorothiazide, PropranololInderide
How Hydrochlorothiazide, Propranolol interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydrochlorothiazide, Propranolol interactionHydrochlorothiazide, QuinaprilAccuretic
How Hydrochlorothiazide, Quinapril interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydrochlorothiazide, Quinapril interactionHydrochlorothiazide, ReserpineHydropres, Serpasil-Esidrix, Serpasil-Esidrix #1, Serpasil-Esidrix #2
How Hydrochlorothiazide, Reserpine interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydrochlorothiazide, Reserpine interactionHydrochlorothiazide, SpironolactoneAldactazide, Aldactide 25, Aldactide 50, Spirozine
How Hydrochlorothiazide, Spironolactone interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydrochlorothiazide, Spironolactone interactionHydrochlorothiazide, TimololTimolide
How Hydrochlorothiazide, Timolol interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydrochlorothiazide, Timolol interactionHydrochlorothiazide, TriamtereneDyazide, Maxzide, Maxzide-25, Triamzide, Triazide
How Hydrochlorothiazide, Triamterene interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydrochlorothiazide, Triamterene interactionHydrochlorothiazide, ValsartanDiovan HCT
How Hydrochlorothiazide, Valsartan interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydrochlorothiazide, Valsartan interactionHydroflumethiazideSaluron
How Hydroflumethiazide interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydroflumethiazide interactionHydroflumethiazide, ReserpineSalutensin, Salutensin-Demi
How Hydroflumethiazide, Reserpine interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Hydroflumethiazide, Reserpine interactionIndapamideLozide, Lozol
How Indapamide interacts with Quassia — through 1 ingredient. Tap an ingredient for the detail:
Dried Quassia Wood ExtractDiuretic Drugs Moderate
Interaction Summary
Overuse of quassia might compound diuretic-induced potassium loss.
Read the full Dried Quassia Wood Extract + Indapamide interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Quassia 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.
dried Quassia wood extract
Antidiabetes Drugs
In animals, quassia extract reduced levels of fasting glucose. Theoretically, quassia might have additive effects when used with antidiabetes drugs. This might increase the risk of hypoglycemia in some patients. Monitor blood glucose levels closely.
Some antidiabetes drugs include glimepiride (Amaryl), glyburide (DiaBeta, Glynase PresTab, Micronase), insulin, metformin (Glucophage), pioglitazone (Actos), rosiglitazone (Avandia), and others.
Digoxin (Lanoxin)
Theoretically, concomitant use with cardiac medications might increase the risk of therapeutic and adverse effects.
Diuretic Drugs
Overuse of quassia might compound diuretic-induced potassium loss. There is some concern that people taking quassia 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), and hydrochlorothiazide (HCTZ, Hydrodiuril, Microzide), and others.
Antacids
Theoretically, due to reports that quassia increases stomach acid, quassia might decrease the effectiveness of antacids.
H2-Blockers
Theoretically, due to reports that quassia increases stomach acid, quassia might decrease the effectiveness of H2-blockers. The H2 blockers include cimetidine (Tagamet), ranitidine (Zantac), nizatidine (Axid), and famotidine (Pepcid).
Proton Pump Inhibitors (Ppis)
Theoretically, due to reports that quassia increases stomach acid, quassia might decrease the effectiveness of PPIs. PPIs include omeprazole (Prilosec), lansoprazole (Prevacid), rabeprazole (Aciphex), pantoprazole (Protonix), and esomeprazole (Nexium).
Brand information
Manufacturer and brand details for Quassia, from the product label.
Herbalist & Alchemist
See all Herbalist & Alchemist products- Name
- Herbalist & Alchemist, Inc.
- City
- Washington
- State
- NJ
- ZipCode
- 07882
- Phone Number
- 800-611-8235
- Web Address
- www.herbalist-alchemist.com
Quassia by Herbalist & Alchemist: Common Questions
Does Quassia by Herbalist & Alchemist interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Can I take quassia if I'm pregnant or breastfeeding?
What are the side effects of quassia?
Does quassia actually work for skin conditions like seborrheic dermatitis or rosacea?
What is quassia used for?
Can I use quassia if I take a water pill or heart medication?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Quassia 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 Quassia’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Quassia'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 8 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.
Quassia 8 references
- Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
- Robbers JE, Speedie MK, Tyler VE. Pharmacognosy and Pharmacobiotechnology. Baltimore, MD: Williams & Wilkins, 1996.
- Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
- Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
- Jensen O, Nielsen AO, Bjerregaard P. Pediculosis capitis treated with quassia tincture. Acta Derm Venereol 1978;58:557-9. DOI
- Diehl C, Ferrari A. Efficacy of topical 4% Quassia amara gel in facial seborrheic dermatitis:a randomized, double-blind, comparative study. J Drugs Dermatol. 2013;12(3):312-5.
- Ferrari A, Diehl C. Evaluation of the efficacy and tolerance of a topical gel with 4% quassia extract in the treatment of rosacea. J Clin Pharmacol. 2012;52(1):84-8. PubMed
- Husain GM, Singh PN, Singh RK, Kumar V. Antidiabetic activity of standardized extract of Quassia amara in nicotinamide-streptozotocin-induced diabetic rats. Phytother Res. 2011;25(12):1806-12.
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