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Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice.
Non-Standardized Plant Allergenic Extract [EPC]
Gamboge is a pigmented resin derived from Garcinia species, historically used as a drastic purgative and currently classified as a non-standardized plant allergenic extract. It is primarily utilized in clinical immunology for diagnostic testing and research applications.
Name
Gamboge
Raw Name
GAMBOGE
Category
Non-Standardized Plant Allergenic Extract [EPC]
Drug Count
27
Variant Count
35
Last Verified
February 17, 2026
About Gamboge
Gamboge is a pigmented resin derived from Garcinia species, historically used as a drastic purgative and currently classified as a non-standardized plant allergenic extract. It is primarily utilized in clinical immunology for diagnostic testing and research applications.
Detailed information about Gamboge
References used for this content
This page is for informational purposes only and does not replace medical advice. Consult a qualified healthcare professional before using any medication containing Gamboge.
Gamboge (also known as Cambodia or Gummi Gutta) is a gum resin obtained from various species of the genus Garcinia, most notably Garcinia hanburyi and Garcinia morella. Historically, it was recognized in traditional medicine and early Western pharmacopeias as a 'drastic hydragogue cathartic' (a powerful laxative that causes the discharge of large amounts of fluid). In modern clinical practice, Gamboge is primarily categorized under the class of Non-Standardized Plant Allergenic Extracts [EPC]. This classification indicates its use in specialized diagnostic procedures, such as skin prick testing or in vitro allergenic assays, to identify hypersensitivity reactions in patients exposed to the resin or its derivatives in industrial or environmental settings.
According to the FDA's Established Pharmacologic Class (EPC) system, Gamboge is also associated with several other complex classifications, including Oxytocic [EPC], Antihypoglycemic Agent [EPC], and Gastrointestinal Motility Inhibitor [EPC]. While these classifications exist in regulatory databases, it is crucial to understand that Gamboge is not a first-line treatment for any of these conditions. Instead, these labels reflect the diverse biological activities of its primary chemical constituents, such as gambogic acid and various xanthones, which have shown experimental effects on uterine contraction, glucose metabolism, and intestinal transit.
Gamboge has a long history of use that predates the modern FDA approval process. It was once a staple in the United States Pharmacopeia (USP) but was removed due to its high toxicity and the availability of safer alternatives. Today, its presence in the pharmaceutical market is limited to specialized extracts and homeopathic preparations, though its active compounds remain a subject of intense oncological research due to their ability to induce apoptosis (programmed cell death) in cancer cells. Your healthcare provider may utilize Gamboge-derived products only in highly specific, controlled clinical or diagnostic environments.
The mechanism of action for Gamboge is multifaceted and depends heavily on the intended clinical application. At the molecular level, the primary active component is gambogic acid, a polyprenylated xanthone.
Because Gamboge is rarely administered as a systemic oral medication in modern medicine, detailed human pharmacokinetic data are limited. Most information is derived from animal models and historical clinical observations.
Currently, Gamboge is not FDA-approved for the treatment of any specific disease. Its uses are primarily diagnostic or experimental:
Gamboge is not available in standard over-the-counter or prescription pill forms in the United States. It may be found in:
> Important: Only your healthcare provider can determine if Gamboge is right for your specific condition. Given its high toxicity, self-administration of any non-homeopathic form of Gamboge is extremely dangerous.
There is no established 'standard' dose for Gamboge because it is not recommended for internal therapeutic use in modern medicine. However, historical and specialized diagnostic ranges include:
Gamboge is NOT approved for use in children. The risk of severe dehydration, electrolyte imbalance, and gastrointestinal hemorrhage is significantly higher in pediatric populations. Even small amounts of the raw resin can be fatal to a child. If a child accidentally ingests Gamboge, seek emergency medical attention immediately.
Gamboge and its metabolites are potentially nephrotoxic (toxic to the kidneys). In patients with pre-existing kidney disease, the use of Gamboge extracts for any purpose is generally contraindicated. If diagnostic testing is absolutely necessary, extreme caution and reduced concentrations must be used.
Since the liver is responsible for the metabolism of xanthones found in Gamboge, patients with hepatic insufficiency (liver failure or cirrhosis) are at a much higher risk for systemic toxicity. Dosage adjustments for diagnostic tests are not standardized, but the risk-benefit ratio must be carefully weighed by an allergist or immunologist.
Elderly patients are more susceptible to the dehydrating effects of Gamboge. Historically, its use in the elderly was avoided due to the risk of cardiovascular collapse following violent purging. For diagnostic testing, clinicians should monitor for exaggerated skin reactions or systemic sensitivities.
Because Gamboge is primarily used as an allergenic extract or in specialized settings, the 'administration' is usually performed by a healthcare professional:
In the context of diagnostic testing, a missed appointment should be rescheduled as soon as possible. Because Gamboge is not taken on a daily schedule for chronic conditions, there is no 'missed dose' protocol in the traditional sense. Do not attempt to 'double up' on any homeopathic or experimental preparation if a dose is missed.
An overdose of Gamboge is a medical emergency. Symptoms of acute poisoning include:
Emergency Measures: If ingestion occurs, do not induce vomiting unless instructed by a poison control center, as the substance is highly irritant. Immediate gastric lavage (stomach pumping) and the administration of activated charcoal may be required. Intravenous fluids and electrolytes are essential to prevent renal failure and circulatory collapse.
> Important: Follow your healthcare provider's dosing instructions. Do not adjust your dose or attempt to use raw Gamboge without medical guidance.
When Gamboge is used in its potent resin form (historically or accidentally), gastrointestinal distress is nearly universal. Common side effects include:
> Warning: Stop using any product containing Gamboge and call your doctor immediately if you experience any of these serious symptoms.
Gamboge is not intended for long-term use. Chronic exposure or repeated use can lead to:
No FDA black box warnings for Gamboge. However, this is largely because Gamboge is not an FDA-approved drug for systemic use. If it were to be evaluated today, it would likely carry severe warnings regarding its potential for fatal gastrointestinal toxicity and dehydration.
Report any unusual symptoms to your healthcare provider. If you suspect you have been poisoned by Gamboge, contact the Poison Control Center at 1-800-222-1222 immediately.
Gamboge is a highly toxic substance that should never be used for self-medication. Its classification as a 'Non-Standardized Plant Allergenic Extract' means it is used by specialists to identify allergies, not to treat them. The resin contains gambogic acid, which is a potent cellular toxin. Any use of this substance must be under the direct supervision of a qualified medical professional, such as an allergist or a clinical toxicologist.
No FDA black box warnings for Gamboge. As it is not a standard prescription medication, it does not have the same regulatory labeling as drugs like warfarin or antidepressants. However, clinical literature consistently warns that doses as small as 4 grams of the raw resin can be fatal to an adult.
If a patient is exposed to Gamboge systemically (e.g., accidental ingestion or experimental use), the following monitoring is required:
Exposure to Gamboge can cause severe dizziness, abdominal cramping, and sudden bowel urgency. It is advised not to drive or operate heavy machinery if you are experiencing any side effects from Gamboge exposure or diagnostic testing.
Alcohol should be strictly avoided. Alcohol can exacerbate the gastrointestinal irritation caused by Gamboge and increase the risk of dehydration and liver stress.
There are no tapering requirements for Gamboge because it is not used for chronic therapy. However, if you are using a homeopathic preparation, you should stop use immediately if you develop any signs of gastrointestinal distress or allergic reaction.
> Important: Discuss all your medical conditions with your healthcare provider before starting any diagnostic process involving Gamboge.
> Important: Tell your doctor about ALL medications, supplements, and herbal products you are taking. The interactions with Gamboge can be life-threatening due to its potent effect on fluid balance.
Gamboge must NEVER be used in the following circumstances:
Conditions requiring careful risk-benefit analysis by a physician:
> Important: Your healthcare provider will evaluate your complete medical history before prescribing or using any Gamboge-derived product.
FDA Pregnancy Category: X (Contraindicated). Gamboge is strictly forbidden during pregnancy. Historical data and animal studies confirm that its active xanthones stimulate uterine smooth muscle. This can lead to premature labor, pelvic inflammatory response, and spontaneous abortion. There is no safe dose of Gamboge for a pregnant woman. If you are pregnant or planning to become pregnant, ensure your healthcare provider is aware before any allergenic testing is performed.
It is unknown if the components of Gamboge pass into breast milk. However, due to the high toxicity of gambogic acid and its potential to cause severe diarrhea and dehydration in a nursing infant, Gamboge should not be used by breastfeeding mothers. If diagnostic testing is required, breastfeeding should be discontinued for at least 72 hours following exposure, or as directed by a physician.
Gamboge is not approved for any use in children. The physiological makeup of children makes them highly susceptible to the 'drastic' effects of the resin. Small doses that might only cause severe illness in an adult can be fatal in a child due to the rapid onset of hypovolemic shock (shock caused by severe fluid loss).
In older adults, the use of Gamboge (even in diagnostic settings) carries an increased risk. The elderly often have reduced renal clearance and are more likely to be taking medications like diuretics or digoxin, which interact dangerously with Gamboge. There is also a higher risk of falls and fractures if the patient experiences the sudden, violent bowel movements associated with the resin.
In patients with a Glomerular Filtration Rate (GFR) below 60 mL/min/1.73m², Gamboge should be avoided. The kidneys are a secondary route of elimination for gambogic acid metabolites, and the substance itself can cause further damage to the renal parenchyma (the functional part of the kidney).
Patients with Child-Pugh Class B or C hepatic impairment should not be exposed to Gamboge. The liver's inability to conjugate and detoxify the xanthones can lead to prolonged systemic exposure and increased toxicity.
> Important: Special populations require individualized medical assessment. Always consult a specialist before proceeding with treatments involving non-standardized extracts.
Gamboge's primary active constituent is gambogic acid (GA). GA is a unique 'caged' xanthone. Its molecular mechanism involves the induction of the intrinsic apoptotic pathway. It inhibits the Bcl-2 protein, which normally prevents cell death. By blocking Bcl-2 and activating Bax proteins, it causes the mitochondria to release cytochrome c, triggering a cascade of caspases that dismantle the cell. Additionally, in the gut, Gamboge acts as a local irritant that triggers the release of prostaglandins and stimulates the myenteric plexus, leading to hyperperistalsis.
| Parameter | Value |
|---|---|
| Bioavailability | Low (Oral), High (Systemic Research) |
| Protein Binding | >90% (Primarily Albumin) |
| Half-life | 2-5 Hours (Estimated) |
| Tmax | 1-2 Hours |
| Metabolism | Hepatic (Oxidation/Glucuronidation) |
| Excretion | Fecal (>80%), Renal (<20%) |
Gamboge is classified as a Non-Standardized Plant Allergenic Extract [EPC]. It belongs to the broader category of stimulant laxatives (historically) and xanthone-derived cytotoxic agents (in research). Related substances include other Garcinia derivatives and anthraquinone laxatives like senna or cascara, though Gamboge is significantly more potent and toxic.
Medications containing this ingredient
Common questions about Gamboge
In modern clinical medicine, Gamboge is primarily used as a non-standardized plant allergenic extract for diagnostic skin testing to identify specific allergies. Historically, it was used as a powerful and 'drastic' laxative to treat severe fluid retention and parasites, but this use has been abandoned due to its high toxicity. Today, its active component, gambogic acid, is a major focus of laboratory research for its potential anti-cancer properties. It is also found in highly diluted forms in some homeopathic remedies. You should never use raw Gamboge resin for any medical purpose without professional supervision.
The most common side effects of Gamboge involve severe gastrointestinal distress, including violent vomiting, intense abdominal cramping, and profuse watery diarrhea. These effects usually occur within an hour of ingestion and can lead to rapid exhaustion. When used for skin testing, common side effects are localized to the skin, such as redness, itching, and swelling at the application site. Because it is a potent irritant, it can also cause skin inflammation upon contact with the raw resin. If you experience these symptoms, especially after accidental exposure, contact a healthcare provider immediately.
No, you should not drink alcohol if you have been exposed to Gamboge or are using products containing it. Alcohol can significantly worsen the gastrointestinal irritation and dehydration caused by the resin. It also puts additional stress on the liver, which is responsible for processing the toxic xanthones found in Gamboge. Furthermore, alcohol can mask the symptoms of an allergic reaction or electrolyte imbalance, making it harder to identify a medical emergency. Always wait until the substance has completely cleared your system before consuming alcohol.
Gamboge is strictly unsafe during pregnancy and is classified as a contraindication. It possesses oxytocic properties, meaning it can cause the uterus to contract, which may lead to miscarriage or premature labor. Historically, it was even used as an abortifacient, highlighting its extreme danger to a developing fetus. Pregnant women should avoid even diagnostic testing with Gamboge unless it is deemed absolutely essential by a specialist who can manage the risks. If you are pregnant, you must inform your doctor before any exposure to this substance.
When ingested (which is not recommended), the purgative effects of Gamboge typically begin within 30 to 60 minutes. The reaction is often sudden and violent, persisting for several hours as the resin moves through the digestive tract. For diagnostic allergenic skin testing, a reaction usually appears within 15 to 20 minutes. If the substance is being studied for its molecular effects in a laboratory, the timeline depends on the specific cellular pathways being targeted. Because of its rapid onset and potency, Gamboge is considered a 'drastic' agent.
Since Gamboge is not used as a chronic, daily medication, there is no need for a tapering schedule; you simply stop the exposure. However, if you have been exposed to a significant amount, you cannot simply 'stop' the biological effects once they have started. You will need medical support to manage the dehydration and electrolyte loss that follows. If you are using homeopathic Gamboge, you can stop at any time, but you should do so if you notice any adverse reactions. Always consult your doctor before ending any medically supervised diagnostic process.
Gamboge is typically administered in a single diagnostic session or used in experimental protocols, so missing a 'dose' usually means missing a scheduled medical appointment. If this happens, simply contact your healthcare provider to reschedule the test. You should never attempt to self-administer Gamboge to 'make up' for a missed diagnostic procedure. If you are using a homeopathic version and miss a dose, just take the next one at the scheduled time. Do not take extra amounts to compensate for the one you missed.
There is no evidence that Gamboge causes weight gain; in fact, its historical use as a drastic purgative caused rapid weight loss due to the massive loss of fluids and fecal matter. However, this is 'water weight' and not a healthy or sustainable form of weight loss. Using Gamboge for weight management is extremely dangerous and can lead to fatal dehydration, organ failure, and electrolyte imbalances. Any weight lost through the use of Gamboge will likely return once the body is rehydrated, assuming the individual survives the toxicity. Never use Gamboge as a weight-loss aid.
Gamboge has several life-threatening interactions with other medications and should be used with extreme caution. It is particularly dangerous when combined with diuretics, digoxin, or other laxatives, as these combinations can lead to fatal heart rhythm problems due to potassium depletion. It may also interfere with blood thinners like warfarin, increasing the risk of internal bleeding. Because it affects gut motility, it can prevent many other oral medications from being absorbed properly. You must provide your doctor with a full list of your medications before any procedure involving Gamboge.
Gamboge is a natural resin, not a synthetic pharmaceutical, so the concept of 'generic' vs. 'brand name' does not apply in the traditional sense. It is available from various chemical and botanical suppliers as a raw material or as a non-standardized extract for laboratory and diagnostic use. There are no FDA-approved 'brand name' prescription drugs containing Gamboge as the primary active ingredient for systemic treatment. It is most commonly found in homeopathic pharmacies under its Latin name, *Gambogia*. Always ensure you are obtaining Gamboge-derived products from a reputable, medically-validated source.