# Sabadilla alkaloid **Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/sabadilla-alkaloid **Data Source:** Hermetica Superfoods Ingredient Encyclopedia **Updated:** 2026-03-19 **Evidence Score:** 2 / 10 **Category:** Compound **Also Known As:** Schoenocaulon officinale alkaloids, Veratrum alkaloids, Cevadilla alkaloids, Sabadilla seed extract, Cevadine-veratridine complex, Caustic barley alkaloids, Schoenocaulon extract ## Overview Sabadilla alkaloids are neurotoxic compounds, primarily cevadine and veratridine, extracted from the seeds of Schoenocaulon officinale. These alkaloids disrupt insect nerve function by binding to voltage-gated sodium channels, causing paralysis and death in target pests. ## Health Benefits • No documented health benefits - research focuses exclusively on insecticidal applications • No human clinical trials or medical studies identified in available research • Used solely as a natural pesticide against cockroaches, houseflies, and aphids • Contains neurotoxic alkaloids (cevadine and veratridine) studied only for arthropod toxicity • Absence of any biomedical or therapeutic research in humans ## Mechanism of Action Cevadine and veratridine, the primary alkaloids in sabadilla, bind irreversibly to voltage-gated sodium channels (Nav channels) in nerve cell membranes, preventing channel inactivation and causing persistent depolarization. This continuous nerve firing leads to muscle paralysis and death in insects such as cockroaches, houseflies, and aphids. In mammals, the same sodium channel disruption produces severe toxicity, including [cardiovascular](/ingredients/condition/heart-health) depression and respiratory failure at sufficient doses. ## Clinical Summary No human clinical trials have been conducted on sabadilla alkaloids for any therapeutic purpose. Research is confined exclusively to agricultural and entomological studies evaluating pesticidal efficacy against hemipteran and dipteran insects. Historical 19th-century medical use as a parasiticide and emetic was abandoned due to its narrow therapeutic window and high toxicity risk. The absence of any peer-reviewed human safety or efficacy data means no evidence-based health claims can be supported. ## Nutritional Profile Sabadilla alkaloid is a non-nutritive insecticidal compound extracted from the seeds of Schoenocaulon officinale (sabadilla plant, family Melanthiaceae). It holds no macronutrient or micronutrient value and is not consumed as a food or supplement. Primary bioactive constituents are steroidal alkaloids: cevadine (veracevine 3-acetate) at approximately 50-60% of total alkaloid content, and veratridine (veracevine 3-veratrate) at approximately 30-40% of total alkaloid content, with minor alkaloids including sabadine, sabatrine, and neogermbudine collectively comprising the remaining 5-10%. Total alkaloid concentration in raw sabadilla seeds ranges from approximately 2-4% by dry weight. Both primary alkaloids are lipophilic steroidal ester alkaloids with molecular weights of approximately 591 g/mol (cevadine) and 673 g/mol (veratridine). These compounds function as sodium channel activators (voltage-gated Na+ channel agonists), causing persistent depolarization in nerve membranes — a mechanism studied strictly in arthropod toxicology. No protein, carbohydrate, lipid, dietary fiber, vitamin, or mineral content is documented for this extract as a nutritive substance. Bioavailability in human contexts is noted only in toxicological literature, where dermal and inhalation exposure can cause transient mucous membrane irritation, sneezing, and lacrimation at low concentrations. Not evaluated under any dietary reference intake framework. ## Dosage & Preparation No clinically studied dosages exist as sabadilla alkaloids lack human clinical data. In pesticidal applications only, concentrations range from 0.05-0.5% w/w. Consult a healthcare provider before starting any new supplement. ## Safety & Drug Interactions Sabadilla alkaloids are classified as highly toxic to mammals; ingestion, inhalation, or skin contact can cause burning sensations, sneezing, vomiting, hypotension, and bradycardia due to sodium channel disruption. No formal drug interaction studies exist, but theoretical interactions with antiarrhythmics, sodium channel blockers (e.g., lidocaine, flecainide), and [cardiovascular](/ingredients/condition/heart-health) medications are plausible and potentially dangerous. Sabadilla is contraindicated in pregnancy, as veratridine has demonstrated teratogenic and embryotoxic effects in animal models. Its use as a dietary supplement is not recognized by any regulatory authority, and human consumption is strongly discouraged. ## Scientific Research No human clinical trials, RCTs, or meta-analyses were identified for sabadilla alkaloids. Research focuses exclusively on insecticidal applications and analytical detection methods in plant matrices (PMID 18147975 covers extraction methods only). ## Historical & Cultural Context No historical or traditional medicinal uses are documented in the sources. Sabadilla alkaloids have a long history exclusively as natural-source pesticides for agricultural pest control. ## Synergistic Combinations No synergistic ingredients identified due to absence of biomedical research ## Frequently Asked Questions ### What are sabadilla alkaloids used for? Sabadilla alkaloids, primarily cevadine and veratridine, are used exclusively as natural contact insecticides registered for controlling pests such as thrips, squash bugs, stink bugs, and aphids in organic agriculture. They are derived from the seeds of Schoenocaulon officinale and are not used in human dietary supplements or medicine. The EPA classifies sabadilla as a biopesticide with restricted use guidelines due to mammalian toxicity. ### Is sabadilla alkaloid safe for humans? Sabadilla alkaloids are not safe for human consumption; cevadine and veratridine are potent neurotoxins that disrupt voltage-gated sodium channels in both insects and mammals. Exposure in humans can cause severe irritation of mucous membranes, sneezing, vomiting, low blood pressure, and in high doses, cardiac arrhythmia or respiratory failure. There is no established safe dosage for human use, and no regulatory body has approved sabadilla as a supplement ingredient. ### Does sabadilla have any health benefits? There are no documented health benefits of sabadilla alkaloids in humans, and no clinical trials or peer-reviewed medical studies have investigated therapeutic applications. Historically, sabadilla seeds were used in 19th-century medicine as a parasiticide and purgative, but these uses were discontinued due to unacceptable toxicity. Current scientific literature contains no evidence supporting its use as a supplement, nutraceutical, or medicine. ### What is the difference between cevadine and veratridine in sabadilla? Cevadine and veratridine are both steroidal ester alkaloids present in sabadilla seeds that share the same core mechanism of binding to voltage-gated sodium channels and preventing their inactivation. Veratridine is generally considered more potent and lipophilic, allowing deeper tissue penetration, while cevadine is the more abundant compound in raw seed extracts. Both compounds contribute synergistically to sabadilla's insecticidal activity, but neither has demonstrated selective or safe activity in human biological systems. ### Can sabadilla alkaloids be absorbed through the skin? Yes, sabadilla alkaloids including cevadine and veratridine can be absorbed transdermally, which is a recognized occupational hazard for agricultural workers handling sabadilla-based pesticides. Dermal absorption can cause local burning, erythema, and systemic effects including hypotension and cardiac irregularities if exposure is significant. Protective equipment including gloves and respiratory protection is recommended by the EPA when handling sabadilla formulations to minimize absorption risk. ### What does research show about the safety of sabadilla alkaloids for human consumption? Research on sabadilla alkaloids has focused exclusively on their insecticidal effects against insects, with no clinical trials or human safety studies conducted. The available scientific literature documents only their neurotoxic effects on arthropods like cockroaches and aphids, not on human health or toxicology. No evidence supports the use of sabadilla alkaloids as a supplement ingredient for human intake. ### Why is sabadilla alkaloid not recommended as a supplement ingredient? Sabadilla alkaloids contain neurotoxic compounds (cevadine and veratridine) that are studied exclusively for pest control applications, with zero documented health benefits for humans. The absence of any biomedical, therapeutic, or clinical research on human use makes it unsuitable for supplementation. Current scientific evidence supports only its narrow application as a natural pesticide, not as a health or wellness ingredient. ### Are there natural food sources of sabadilla alkaloids? Sabadilla alkaloids are naturally present in the seeds of Schoenocaulon officinale plants, but these are not consumed as a food source and have no established dietary use. The plant's alkaloid content is too toxic for intentional human ingestion through food or dietary supplements. These compounds are extracted and used exclusively as botanical pesticides, not as nutritional ingredients. --- *Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com* *License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*