# Dogbane (Apocynum cannabinum) **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/dogbane **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-29 **Evidence Score:** 2 / 10 **Category:** Native American **Also Known As:** Apocynum cannabinum, Indian hemp, American hemp, Hemp dogbane, Prairie dogbane, Wild cotton, Rheumatism root, Black Indian hemp, Canadian hemp, Milk ipecac ## Overview Dogbane (Apocynum cannabinum) contains cardiac glycosides, primarily cymarin and apocynin, which inhibit the Na+/K+-ATPase pump in cardiac muscle to exert positive inotropic effects. Native American tribes traditionally used it as a cardiotonic and diuretic, though its narrow therapeutic window and toxicity profile make it clinically precarious. ## Health Benefits • Historically used as a cardiotonic for congestive heart failure, though modern clinical evidence is lacking. • Exhibits potential cytotoxic effects against certain carcinomas in lab studies, not yet validated in human trials. • Traditional use as a diuretic, though not supported by contemporary clinical studies. • Acts as an expectorant in historical contexts, without current clinical validation. • Used as a febrifuge in Native American traditional medicine, with no modern study backing. ## Mechanism of Action The primary bioactive compounds in dogbane, cymarin and apocynin, inhibit the sodium-potassium ATPase (Na+/K+-ATPase) enzyme on cardiac myocyte membranes, increasing intracellular sodium and secondarily elevating intracellular calcium via the Na+/Ca2+ exchanger, resulting in stronger cardiac contractions. Apocynin also demonstrates NADPH oxidase inhibition, reducing superoxide radical production and exhibiting [anti-inflammatory](/ingredients/condition/inflammation) effects at the cellular level. Additionally, cytotoxic lignans and flavonoids isolated from the plant have shown apoptosis-inducing activity in cancer cell lines, potentially via [mitochondrial](/ingredients/condition/energy) pathway disruption and caspase-3 activation. ## Clinical Summary No modern randomized controlled trials have evaluated dogbane in human subjects for any indication, leaving its efficacy profile rooted entirely in ethnobotanical records and preclinical data. In vitro studies have demonstrated cytotoxic activity of dogbane extracts against carcinoma cell lines including HeLa and MCF-7, though these findings have not been translated into animal or human trials. Animal models have supported mild diuretic activity consistent with traditional use, but no quantified dose-response data in humans exists. The overall evidence base is rated very low quality, and all purported benefits remain unvalidated by contemporary clinical standards. ## Nutritional Profile Dogbane (Apocynum cannabinum) is not consumed as a food source and therefore lacks a conventional nutritional profile in terms of macronutrients (protein, fat, carbohydrates) or caloric value. It is classified as a toxic plant and its relevance is strictly phytochemical/pharmacological. Key bioactive compounds include: • Cardioactive glycosides (cardenolides): cymarin (~0.1–0.5% dry weight of root), apocannoside, and cyanocannoside — these are structurally related to digoxin and act on Na+/K+-ATPase; oral bioavailability of cymarin is estimated to be moderate but highly variable and dose-dependent, contributing to its toxicity risk. • Apocynamarin: a related cardenolide with potent cardiotonic activity. • Flavonoids: quercetin and kaempferol glycosides (concentrations not precisely quantified in literature but present in leaf and root tissue), contributing [antioxidant](/ingredients/condition/antioxidant) potential. • Tannins: condensed and hydrolyzable tannins present in bark and root (~2–5% dry weight), which may contribute astringent and mild [antimicrobial](/ingredients/condition/immune-support) properties. • Resins and rubber-like latex: the milky sap contains polyisoprene compounds; not nutritionally relevant but pharmacologically irritating to mucous membranes. • Starch and inulin-type fructans: present in root tissue in minor quantities, historically noted in ethnobotanical literature but not significant as a caloric source. • Minerals: no formal mineral analysis specific to Apocynum cannabinum is widely published; however, as a deep-rooted perennial, it likely accumulates potassium, calcium, and magnesium in root tissues at levels typical of herbaceous perennials. • Vitamins: no documented vitamin content of significance. • Fiber: the stem bast fibers are rich in cellulose (used historically by Native Americans for cordage), but this is structural fiber, not dietary. • Bioavailability notes: cardenolides are absorbed gastrointestinally but have a narrow therapeutic index; even small doses can cause toxicity (nausea, cardiac arrhythmia, death). The plant is NOT safe for ingestion as a food or supplement without expert medical supervision. All traditional medicinal uses involved carefully controlled preparations by experienced practitioners. ## Dosage & Preparation No clinically studied dosage ranges are reported. Traditional uses lacked specific quantities and standardization. Consult a healthcare provider before starting any new supplement. ## Safety & Drug Interactions Dogbane is considered highly toxic due to its cardiac glycoside content; ingestion can cause severe bradycardia, heart block, ventricular arrhythmias, nausea, and potentially fatal cardiac arrest, particularly at doses only marginally above any putative therapeutic range. It poses a significant drug interaction risk with other cardiac glycosides such as digoxin, antiarrhythmics like amiodarone, and diuretics that alter potassium levels, as hypokalemia amplifies glycoside toxicity. Dogbane is absolutely contraindicated in pregnancy, as cardiac glycosides can cross the placental barrier and induce fetal bradycardia and teratogenic effects. No safe supplemental dose has been established for humans, and self-administration is strongly discouraged by toxicologists and pharmacognosists alike. ## Scientific Research No human clinical trials or meta-analyses were identified in the sources for Apocynum cannabinum. Historical references mention its use in congestive heart failure treatment, but modern studies with PMIDs are not available. ## Historical & Cultural Context Dogbane was traditionally used by Native Americans and in early U.S. medicine as a cardiotonic, diuretic, and remedy for ailments like rheumatism and VD. Its fiber was also used similarly to hemp. ## Synergistic Combinations Hawthorn, Dandelion, Digitalis, Ginger, Turmeric ## Frequently Asked Questions ### What are the active compounds in dogbane that affect the heart? Dogbane contains cardiac glycosides, most notably cymarin (a cardenolide glycoside) and smaller amounts of apocannoside and strophanthidin derivatives. These compounds bind to and inhibit the Na+/K+-ATPase pump on heart muscle cells, increasing contractile force similarly to pharmaceutical digoxin but with a far less predictable therapeutic index. ### Is dogbane safe to take as a supplement? Dogbane is not considered safe for unsupervised supplemental use due to its potent cardiac glycoside content; the margin between a biologically active dose and a toxic dose is extremely narrow. Symptoms of toxicity include nausea, vomiting, bradycardia, and life-threatening arrhythmias, and no standardized safe dosage has been established for human consumption. ### Did Native Americans use dogbane medicinally and how? Multiple Native American nations, including the Cherokee, Ojibwe, and Mohegan, used Apocynum cannabinum root preparations as a cardiotonic, diuretic, and emetic. It was also applied topically for rheumatic pain and used as a fiber source for cordage, demonstrating its broad utility beyond medicine in traditional culture. ### Can dogbane help with cancer based on current research? Preclinical in vitro studies have shown that dogbane extracts exhibit cytotoxic activity against certain cancer cell lines, including MCF-7 breast cancer and HeLa cervical carcinoma cells, with the mechanism potentially involving caspase-3-mediated apoptosis. However, no animal studies or human clinical trials have been conducted, meaning there is zero clinical evidence to support dogbane as a cancer treatment or adjunct therapy. ### Does dogbane interact with prescription heart medications? Yes, dogbane poses serious interaction risks with digoxin and other cardiac glycosides, as combined use can cause additive Na+/K+-ATPase inhibition leading to toxic serum glycoside levels. It also interacts dangerously with loop diuretics such as furosemide and thiazides by compounding hypokalemia, which dramatically sensitizes the myocardium to glycoside-induced arrhythmias. ### What forms of dogbane are available and which is most commonly used? Dogbane is primarily available as dried herb preparations, tinctures, and herbal infusions, with tinctures being the most common traditional form due to their concentrated nature. Dried leaf and root materials are also used in tea preparations, though standardized extracts are rare in commercial supplements. The root is traditionally considered more potent than aerial parts, though bioavailability differences between forms have not been clinically validated. ### Who should avoid dogbane supplementation and why? People with existing cardiac arrhythmias, low blood pressure, or those taking diuretic medications should avoid dogbane due to its historical use as a cardiotonic and diuretic with potent cardiac glycosides. Pregnant and nursing women should avoid it as safety data is absent and traditional use suggests significant physiological effects. Individuals with kidney disease should exercise caution given the diuretic properties and potential electrolyte effects. ### How does the strength of evidence for dogbane's traditional uses compare to modern clinical validation? While dogbane has centuries of traditional use for heart conditions and as a diuretic in indigenous medicine, modern clinical studies are severely lacking—no well-designed human trials exist to confirm its effectiveness or safety for these indications. Most contemporary evidence comes from in vitro and animal studies, particularly regarding potential cytotoxic effects, which cannot be directly extrapolated to human therapeutic outcomes. This significant gap between traditional use and clinical evidence means dogbane remains largely unvalidated by contemporary medical standards. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*