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Dietary supplement

Bitter Melon Ingredients & Drug Interactions

by Herbalist & Alchemist

Liquid Category: Botanical
Most serious interaction: Moderate
The interaction bottom line Most serious interaction: Moderate

Bitter Melon is a dietary supplement by Herbalist & Alchemist with 1 active ingredient. Its ingredients are commonly taken for blood sugar support, diabetes, digestive complaints.Based on those ingredients, 282 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are dried Bitter Melon fruit extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

HelloPharmacist Scorecard of Bitter Melon 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.

From our pharmacy team — supplement deep dive

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: dried bitter melon fruit extract. Bitter melon is a tropical vine fruit with a long history in traditional medicine, and this liquid form delivers the extract suspended in distilled water and ethyl alcohol (the alcohol helps preserve and extract the plant compounds).

Does it work?

Not established
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 established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use — see Bitter Melon's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: supports healthy blood sugar levels.
  • We looked for evidence on: Diabetes, Impaired glucose tolerance (prediabetes), Metabolic syndrome, Hyperglycemia, Glycemic control.
  • The closest evidence on file: Bitter Melon is rated "Insufficient Reliable Evidence To Rate" for Diabetes (Natural Medicines).
  • Also on file: Bitter Melon is rated "Insufficient Reliable Evidence To Rate" for Impaired glucose tolerance (prediabetes), Metabolic syndrome.

The evidence we hold doesn't establish that bitter melon works for any condition. Studies rate it "insufficient reliable evidence" for amenorrhea, athletic performance, liver disease, constipation, diabetes, and indigestion — meaning the research isn't there yet to say whether it actually does what people hope it will.

The evidence, ingredient by ingredient Bitter Melon

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.

Bitter melon is generally well tolerated when eaten as food, but supplement doses may lower your blood sugar and cause stomach upset. The most common side effects in studies are gastrointestinal — heartburn, nausea, vomiting, diarrhea, constipation, flatulence, and belly discomfort occurred in roughly 3–16% of people who took it.

Rare serious side effects include very low blood sugar (hypoglycemic coma) and seizures in children. The safety data advises against bitter melon in pregnancy because seeds and high doses may cause harm to the uterus or the pregnancy itself.

There isn't enough reliable safety information to know whether it's safe while breastfeeding, so it's best avoided then. One case report also documented kidney function decline linked to high-dose bitter melon extract, which reversed when the supplement was stopped.

Side effects, ingredient by ingredient Bitter Melon

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 — Bitter Melon.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: diabetes medications.
  • For scale: 282 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 bitter melon extract, double-check with your pharmacist if you're on pazopanib (Votrient) for cancer, any antidiabetes drugs, or medications that are P-glycoprotein substrates — a large group that includes many anticancer, antibiotic, and heart medications. Altogether, these interactions span 275 individual medications, so use the checker below with your complete medication list.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.

Bitter melon may appeal to you if you're interested in traditional herbal remedies, but the evidence for what it actually does isn't solid. If you take diabetes drugs, pazopanib, or any medication processed through your intestines' P-glycoprotein pump, you should check with your pharmacist before starting — the interactions could be meaningful.

Pregnant or breastfeeding? Skip it and talk to your doctor.

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

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Oct 23, 2019.

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 Bitter Melon, straight from the product label.

Brand Herbalist & Alchemist
Barcode (UPC) 667056138592
Net contents 2 fl. Oz.; 60 mL
Market status On market
Date entered into DSLD Oct 23, 2019
DSLD ID 208095
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Kosher, Organic
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 Bitter Melon by Herbalist & Alchemist, 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:
1.5 mL
Maximum serving Sizes:
2 mL
Servings per container
30
UPC/BARCODE
667056138592
IngredientAmount% DV
dried Bitter Melon fruit extract2 mL--

Other ingredients: distilled Water, Ethyl Alcohol

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formula

Mormordica charantia

OK

General Statements

Supports healthy blood sugar levels already in the normal range

Botanical preparation ratio 1:4

FDA Statement of Identity

Herbal Supplement

Suggested/Recommended/Usage/Directions

Suggested use: 30-40 drops (1.5 - 2 mL) in juice or water. Take 3 times per day. Shake well before using.

Precautions

Contraindications: Monitor blood sugar levels carefully when using in combination with blood sugar lowering medications.

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.

Seals/Symbols

OK

See for yourself

Bitter Melon by Herbalist & Alchemist label

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

What’s inside

The Ingredients in Bitter Melon by Herbalist & Alchemist

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

Serving size1.5 mL Dosage formLiquid Servings per container30 Amounts shown are per serving.

Dried Bitter Melon fruit extract

Interacts with
282 drugs
2 mL per serving

Bitter melon is a tropical fruit eaten as food and used in traditional medicine, most often for blood sugar control. While some small studies hint it...

Dried Bitter Melon fruit extract monograph & interactions

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

Interaction report

Bitter Melon by Herbalist & Alchemist Drug Interactions

Want to check YOUR meds against Bitter Melon?

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
282Drugs
282 Moderate

Ingredients driving the most interactions

Each ingredient & the kinds of drugs it affects

For each ingredient in Bitter Melon 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 Bitter Melon fruit extract3 drug types · 282 drugs

Antidiabetes Drugs

Taking bitter melon with antidiabetes drugs might increase the risk of hypoglycemia.
Bitter melon can lower blood glucose levels and might have additive effects when used with antidiabetes drugs. This might increase the risk of hypoglycemia in some patients. Monitor blood glucose levels closely.

Likelihood Probable Evidence B
P-Glycoprotein Substrates

Theoretically, bitter melon might increase levels of P-glycoprotein substrates.
Bitter melon might inhibit the p-glycoprotein (P-gp) intestinal pump and increase intracellular levels of P-gp substrates. In vitro research in intestinal cells shows that 1-monopalmitin, a constituent of bitter melon, increases levels of daunomycin, a P-gp substrate. Additionally, drinking bitter melon juice has been associated with a case of acute pancreatitis in a patient who had been taking pazopanib, a P-gp substrate, for 8 years. Researchers theorize that inhibition of P-gp led to increased levels of pazopanib, resulting in pazopanib-induced pancreatitis.

Likelihood Possible Evidence D
Pazopanib (Votrient)

Theoretically, bitter melon might increase levels of pazopanib, potentially increasing the risk of adverse effects.
In one case, a 65-year-old patient taking pazopanib for 8 years for renal cell carcinoma experienced signs and symptoms consistent with acute pancreatitis 4 days after drinking bitter melon juice at a dose of 100-150 mL daily. The patient's symptoms, amylase levels, and lipase levels improved upon discontinuation of bitter melon and pazopanib. Pazopanib treatment was re-initiated with no further evidence of pancreatitis. Researchers theorize that inhibition of P-glycoprotein by bitter melon led to increased levels of pazopanib, a P-glycoprotein substrate, resulting in pazopanib-induced pancreatitis.

Likelihood Possible Evidence D
The maker

Brand information

Manufacturer and brand details for Bitter Melon, 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
Pharmacist Counseling Corner

Bitter Melon by Herbalist & Alchemist: Common Questions

Does Bitter Melon by Herbalist & Alchemist interact with any medications?
Yes. Based on its ingredients, Bitter Melon has a known interaction with 282 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Bitter Melon contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Can I take bitter melon if I'm pregnant or breastfeeding?
No. The safety data advises against it in pregnancy because seeds and high doses may cause harmful effects to the uterus. While breastfeeding, there isn't enough safety information to know either way — it's best avoided. Talk with your doctor or pharmacist for personalized advice.
What are the most common side effects?
Stomach and digestive issues are most common — heartburn, nausea, vomiting, diarrhea, constipation, gas, and belly discomfort. These happened in about 3–16% of people in studies. You might also feel dizzy, tired, or get a headache. Serious effects like very low blood sugar are rare.
Does bitter melon actually work for diabetes?
The evidence isn't established in the data we hold. Studies rate it "insufficient reliable evidence," which means there's not enough research to say whether it works for diabetes or not.
What's in this liquid besides the bitter melon extract?
The extract is suspended in distilled water and ethyl alcohol, which help preserve the plant compounds and extract them into liquid form. Those two are inactive ingredients — the active part is the bitter melon fruit extract itself.
Should I monitor anything if I'm on diabetes medication and take this?
Yes. Bitter melon can lower your blood sugar, and combining it with diabetes drugs might lower it too much. Monitor your blood glucose closely and talk with your doctor or pharmacist first.

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.

Bitter Melon label
Sources

Sources & How We Checked

Bitter Melon'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 18 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.

Bitter Melon 18 references
  1. Leatherdale B, Panesar RK, Singh G, et al. Improvement in glucose tolerance due to Momordica charantia. Br Med J (Clin Res Ed) 1981;282:1823-4.
  2. Welihinda J, et al. Effect of Momordica charantia on the glucose tolerance in maturity onset diabetes. J Ethnopharmacol 1986;17:277-82. PubMed
  3. Srivastava Y, Venkatakrishna-Bhatt H, Verma Y, et al. Antidiabetic and adaptogenic properties of Momordica charantia extract: An experimental and clinical evaluation. Phytother Res 1993;7:285-9.
  4. Baldwa VS, Bhandari CM, Pangaria A, Goyal RK. Clinical trial in patients with diabetes mellitus of an insulin-like compound obtained from plant sources. Ups J Med Sci 1977;82:39-41. PubMed
  5. Aslam M, Stockley IH. Interaction between curry ingredient (karela) and drug (chlorpropamide). Lancet 1979:1:607. PubMed
  6. Ahmad N, Hassan MR, Halder H, Bennoor KS. Effect of Momordica charantia (Karolla) extracts on fasting and postprandial serum glucose levels in NIDDM patients (abstract). Bangladesh Med Res Counc Bull 1999;25:11-3.
  7. Basch E, Gabardi S, Ulbricht C. Bitter melon (Momordica charantia): a review of efficacy and safety. Am J Health Syst Pharm 2003;60:356-9. PubMed
  8. Yin RV, Lee NC, Hirpara H, Phung OJ. T. The effect of bitter melon (Mormordica charantia) in patients with diabetes mellitus: s systematic review and meta-analysis. Nutr Diabetes. 2014;4:e145.
  9. Rahman IU, Khan RU, Rahman KU, Bashir M. Lower hypoglycemic but higher antiatherogenic effects of bitter melon than glibenclamide in type 2 diabetic patients. Nutr J. 2015;14:13. PubMed
  10. Alam MA, Uddin R, Subhan N, Rahman MM, Jain P, Reza HM. Beneficial role of bitter melon supplementation in obesity and related complications in metabolic syndrome. J Lipids. 2015;2015:496169. PubMed
  11. Konishi T, Satsu H, Hatsugai Y, et al. Inhibitory effect of a bitter melon extract on the P-glycoprotein activity in intestinal Caco-2 cells. Br J Pharmacol. 2004;143(3):379-87. PubMed
  12. Peter EL, Kasali FM, Deyno S, et al. Momordica charantia L. lowers elevated glycaemia in type 2 diabetes mellitus patients: Systematic review and meta-analysis. J Ethnopharmacol. 2019;231:311-24. doi: 10.1016/j.jep.2018.10.033. PubMed
  13. Cortez-Navarrete M, Martínez-Abundis E, Pérez-Rubio KG, González-Ortiz M, Méndez-Del Villar M. Momordica charantia administration improves insulin secretion in type 2 diabetes mellitus. J Med Food. 2018;21(7):672-7. doi: 10.108
  14. Kim SK, Jung J, Jung JH, et al. Hypoglycemic efficacy and safety of Momordica charantia (bitter melon) in patients with type 2 diabetes mellitus. Complement Ther Med. 2020 Aug;52:102524. doi: 10.1016/j.ctim.2020.102524. PubMed
  15. Unsal O, Sütcüoglu O, Yazici O. Dangerous interaction of bitter melon (Momordica charantia) with pazopanib: a case of acute pancreatitis. J Oncol Pharm Pract 2022;28(2):486-8.
  16. Bae W, Kim S, Choi J, et al. Acute interstitial nephritis associated with ingesting a Momordica charantia extract: a case report. Medicine (Baltimore) 2021;100(27):e26606. PubMed
  17. Chattopadhyay K, Wang H, Kaur J, et al. Effectiveness and Safety of Ayurvedic Medicines in Type 2 Diabetes Mellitus Management: A Systematic Review and Meta-Analysis. Front Pharmacol. 2022;13:821810. Published 2022 Jun 8. PubMed
  18. Kim B, Lee HS, Kim HJ, et al. Momordica charantia (bitter melon) efficacy and safety on glucose metabolism in Korean prediabetes participants: a 12-week, randomized clinical study. Food Sci Biotechnol 2022;32(5):697-704. PubMed

See these in context on the Bitter Melon 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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