Copyright © 2020 by RxList Inc. RxList does not provide medical advice, diagnosis or treatment. Mitri, F., Hofmeyr, G. J., and van Gelderen, C. J. Meconium during labour--self-medication and other associations. There are 408 castor beans extract suppliers, mainly located in Asia. 1977;128(1):57-59. View abstract. What other names is Castor Bean known by? 3.8 out of 5 stars 1,081. View abstract. Ricin is a deadly toxin from the seed of the castor bean plant (Ricinus communis). vitamins, herbs, dietary supplements a-z list. View abstract. Because the peel of castor beans is toxic, the manufacturer needed to remove it before grounding the remaining ingredient into a powder. AJR Am J Roentgenol. How Ricin Can Sicken And Kill : Shots - Health News Ricin is a naturally occurring toxin found in castor beans. The following doses have been studied in scientific research: Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, and Insufficient Evidence to Rate (detailed description of each of the ratings). Various uses of the castor oil plant (Ricinus communis L.). View abstract. View abstract. Washington, DC: American Pharmaceutical Association, 1996. Effect of an oil-in-water emulsion on the tear physiology of patients with mild to moderate dry eye. Some women put castor oil inside the vagina for birth control or to cause an abortion. Beitz, J. M. Heparin-induced thrombocytopenia syndrome bullous lesions treated with trypsin-balsam of peru-castor oil ointment: a case study. 1994;38(2):371-373. 1980;8:1633-1635. View abstract. It is unadulterated and thereâs no use of chemicals in the making process. Yang, H. C., Sheu, M. H., Wang, J. H., and Chang, C. Y. Bowel preparation of outpatients for intravenous urography: efficacy of castor oil versus bisacodyl. Ryan, J., Leighton, J., Kirksey, D., and McMahon, G. Evaluation of an enkephalin analog in men with castor oil-induced diarrhea. Not enough research has been done to know whether a mother's use of castor oil is safe for nursing infants. The hull contains a deadly poison called ricin. 2007;26 Suppl 3:31-77. Marmion, L. C., Desser, K. B., Lilly, R. B., and Stevens, D. A. Reversible thrombocytosis and anemia due to miconazole therapy. View abstract. The whole seed is UNSAFE to take by mouth. Ann Emerg Med 1990;19:1177-83. 2005;51(6):52-58. Intestinal problems: Don't use castor oil if you have a blocked intestine, unexplained stomach pain, or problems with your bile ducts or gall bladder. Other dosing schedules that have been used include 5 mL in peppermint tea every 2 hours, 15 mL three times daily, 30 mL every 2 hours, 30 mL every 6 hours, 30 mL every 3 hours for 3 doses, 60 ml daily, and 60 mL daily for 2 days. Tayrouz, Y., Ding, R., Burhenne, J., Riedel, K. D., Weiss, J., Hoppe-Tichy, T., Haefeli, W. E., and Mikus, G. Pharmacokinetic and pharmaceutic interaction between digoxin and Cremophor RH40. A., Ekwenchi, M. M., Ekpenyong, K. I., Onwukeme, K. E., Olayinka, A. O., Uguru, M. O., and Das, S. C. Anticonceptive and estrogenic effects of a seed extract of Ricinus communis var. It might bring on labor too early. Ricin is a natural product that is created from waste material when processing castor beans. Lectin-induced increase in clonogenic growth of haematopoietic progenitor cells. I donât remember exactly how old I was when this happened, probably around 7 years old, but I have some very vivid but patchy recollections of the incident. Castor oil is LIKELY SAFE for most people when taken by mouth as a single dose. Strates, B. S. and Hofmann, L. M. A randomized study of two preparations for large bowel radiology. Audi J, Belson M, Patel M, et al. Melia AT, Koss-Twardy SG, Zhi J. 1993;88(8):1218-1223. View abstract. It might cause fluid and potassium loss from the body when used for more than a week or in doses of more than 15-60 mL per day. 1982;139(5):855-860. Xiamen Boten Biological Technology Co., Ltd. Heilongjiang Land Reclamation Dragon King Foods Co., Ltd. Xi'an Aladdin Biological Technology Co., Ltd. Shaanxi Tai Ma Health Biological Co., Ltd. Shanghai Ruizheng Chemical Technology Co., Ltd. Xian Aladdin Biological Technology Co., Ltd. Ningxia Baishi Hengxing Food Technology Co., Ltd. Guangzhou Fengzhi Healthy Foods Co., Ltd. Foshan Shunde Lison Plastic Packing Co., Ltd. Tianjin Liesi International Trading Co., Ltd. Castor oil has been used as medicine for centuries. Ophthalmology 2000;107(5):967-974. Adv.Prostaglandin Thromboxane Res. Castor bean intoxication. View abstract. J Clin.Oncol. Visit the FDA MedWatch website or call 1-800-FDA-1088. S.Afr.Med J 4-4-1987;71(7):431-433. Stevenson, D., Tauber, J., and Reis, B. L. Efficacy and safety of cyclosporin A ophthalmic emulsion in the treatment of moderate-to-severe dry eye disease: a dose-ranging, randomized trial. Detectives from the German Public Prosecutor General and Federal Criminal Police Office conducted the investigation. Seed Treatment in Castor Cultivation:-It is recommended to treat the seeds with Carbendazim @ 2 grams/kg of seed for preventing seed borne diseases like root-rot and Alternaria blight.Soaking the seeds in water for 18 to 20 hours is advised. Also, castor oil eye drops are POSSIBLY SAFE when applied to the eye for up to 30 days. Weapons-grade ricin is purified and produced in particles that are so small they can be breathed in. I grew up in El Salvador on a working farm owned by my grandfather. 1988;6(4):663-668. Dodds, W. J., Scanlon, G. T., Shaw, D. K., Stewart, E. T., Youker, J. E., and Metter, G. E. An evaluation of colon cleansing regimens. Some people apply castor seed paste to the skin as a poultice for inflammatory skin disorders, boils, carbuncles, pockets of infection (abscesses), inflammation of the middle ear, and migraine headaches. Chewing as few as 1-6 whole seeds can kill an adult. In manufacturing, castor seeds are used to make paints, varnishes, and lubricating oils. The roasted castor seeds mashed into fine powder in a mortar. Castor oil has been used as a medicine for centuries. Obstet Gynecol 2000;95:19-23. Ricin, a poison found in castor beans, has been found in a package sent to President Donald Trump â the latest example of the natural and deadly toxin being investigated by authorities. 1976;10(3):447-449. View abstract. Nature's Mace Mole Repellent 100% Castor Oil-32oz Concentrate. The plant is naturally fast-growing in tropical climates and it doesn't compete with food crops. As a terrorism agent, ricin can be used as a powder, a mist, a pellet, or can be dissolved in water or weak acid. It is important to remove the bulk of the root crown to prevent regeneration. Put the bean pulp into a blender or coffee grinder with 4 ounces of acetone for every 1 oz. Sugar, A. M., Salibian, M., and Goldani, L. Z. Saperconazole therapy of murine disseminated candidiasis: efficacy and interactions with amphotericin B. Antimicrob.Agents Chemother. æµB2-20120091. Th â¦ In pregnancy, castor oil might start labor by stimulating the uterus. 2003;73(5):397-405. Final report on the safety assessment of Ricinus Communis (Castor) Seed Oil, Hydrogenated Castor Oil, Glyceryl Ricinoleate, Glyceryl Ricinoleate SE, Ricinoleic Acid, Potassium Ricinoleate, Sodium Ricinoleate, Zinc Ricinoleate, Cetyl Ricinoleate, Ethyl Ricinoleate, Glycol Ricinoleate, Isopropyl Ricinoleate, Methyl Ricinoleate, and Octyldodecyl Ricinoleate. Some "water pills" that can decrease potassium include chlorothiazide (Diuril), chlorthalidone (Thalitone), furosemide (Lasix), hydrochlorothiazide (HCTZ, HydroDiuril, Microzide), and others. Saudi.Med J 2006;27(7):1011-1014. Novetsky, G. J., Turner, D. A., Ali, A., Raynor, W. J., Jr., and Fordham, E. W. Cleansing the colon in gallium-67 scintigraphy: a prospective comparison of regimens. Insufficient Evidence to Rate Effectiveness for... Vitamin D Deficiency: How Much Vitamin D Is Enough? Azhari, S., Pirdadeh, S., Lotfalizadeh, M., and Shakeri, M. T. Evaluation of the effect of castor oil on initiating labor in term pregnancy. View abstract. Altern Ther Health Med 2000;6:77-9. Kris, M. G., Gralla, R. J., Clark, R. A., Tyson, L. B., and Groshen, S. Control of chemotherapy-induced diarrhea with the synthetic enkephalin BW942C: a randomized trial with placebo in patients receiving cisplatin. View abstract. The castor bean plant, scientifically known as Ricinus communis belongs to the spurge family of flowering plants whose latex have various toxic as well as medicinal properties. View abstract. Midwives routinely use castor oil for starting labor in pregnant women who are ready to deliver. Castor seeds without the hull are used for birth control, constipation, leprosy, and syphilis. Adv.Exp.Med Biol. Sall, K., Stevenson, O. D., Mundorf, T. K., and Reis, B. L. Two multicenter, randomized studies of the efficacy and safety of cyclosporine ophthalmic emulsion in moderate to severe dry eye disease. Roast it over the flame until it chars. Micha, J. P., Goldstein, B. H., Birk, C. L., Rettenmaier, M. A., and Brown, J. V., III. Nucl.Med Commun. Tomox Castor beans, Castor seeds, 500 grams Chinese herbal medicine, $34.80 $ 34. A one-time dose of 60 mL in fruit juice is commonly used. Also, it is LIKELY UNSAFE to use castor oil in pregnant women who are not at term. View abstract. Isichei CO, Das SC, Ogunkeye OO, et al. 1981;137(5):979-981. The Substance glasses utilise Rolf's Flexlock hinge design, which involves no screws or â¦ Chen, C. C., Ng, W. W., Chang, F. Y., and Lee, S. D. Magnesium citrate-bisacodyl regimen proves better than castor oil for colonoscopic preparation. View abstract. 1991;34(2-3):141-145. Castor oil is produced from ripe seeds that have had their outer covering (hull) removed. Castor oil seeds that have had the outer coat removed (hulled) are POSSIBLY SAFE when taken by mouth as a single dose. View abstract. However, castor oil should not be used for this purpose without the supervision of a healthcare provider. 7. View abstract. Copyright © 2018 by RxList Inc. RxList does not provide medical advice, diagnosis or treatment. View abstract. Review of the literature and recommendations for practice. Castor oil is used in the eyes to soothe membranes irritated by dust or other materials. The Cyclosporin A Phase 2 Study Group. AJR Am.J Roentgenol. About 21% of these are herbal extract, 4% are instant coffee, and 2% are oil seeds. Rischin, D., Webster, L. K., Millward, M. J., Linahan, B. M., Toner, G. C., Woollett, A. M., Morton, C. G., and Bishop, J. F. Cremophor pharmacokinetics in patients receiving 3-, 6-, and 24-hour infusions of paclitaxel. To many people the castor plant is just an overgrown, undesirable weed, and yet it produces one of nature's finest natural oils. Don't take castor oil if you are breast-feeding. What does it do, and how bad is it? J.Gastroenterol.Hepatol. The median lethal dose (LD 50) of ricin for mice is around 22 micrograms per kilogram of body weight via intraperitoneal injection. View abstract. View abstract. Ophthalmology 2002;109(11):2030-2035. Ricin is found naturally in castor beans, which are typically pressed to make castor oil. 97 $21.97 $21.97. FREE Shipping on orders over $25 shipped by Amazon. You can get sick by eating beans. JAMA 2005;294:2342-51. Das SC, Isichei CO, Okwuasaba FK, et al. Abraxane in the treatment of ovarian cancer: the absence of hypersensitivity reactions. 5. Castor seeds are well-known for several health properties and chief among them is the use of castor seed oil as a cleansing laxative and purgative. See additional information. Mix half teaspoon of obtained ash with dried Ginger ( Adrak in India ) powder. Pour out the liquid being careful not to get any on exposed skin. View abstract. Castor oil has been used as medicine for centuries. Mechanism of action of castor oil: a biochemical link to the prostaglandins. As well as from powder, oil. Castor oil is produced by pressing ripe seeds that have had their outer covering (hull) removed. Arch.Orthop.Trauma Surg. Ricin can be made from the waste material left over from processing castor beans. View abstract. Pearce, E. I., Tomlinson, A., Blades, K. J., Falkenberg, H. K., Lindsay, B., and Wilson, C. G. Effect of an oil and water emulsion on tear evaporation rate. J.Ethnopharmacol. important to wear gloves, as castor bean is poisonous. Goto, E., Shimazaki, J., Monden, Y., Takano, Y., Yagi, Y., Shimmura, S., and Tsubota, K. Low-concentration homogenized castor oil eye drops for noninflamed obstructive meibomian gland dysfunction. 1999;119(7-8):423-427. A., and Stewart, E. T. Evaluation of 12 colon-cleansing regimens with single-contrast barium enema. 11th ed. A review. Int J Toxicol. Clin.Pharmacol.Ther. Vitetta, E. S., Smallshaw, J. E., Coleman, E., Jafri, H., Foster, C., Munford, R., and Schindler, J. 2001;45(4):1086-1093. Take with a little water once in a day. AJR Am.J Roentgenol. On 13th June, 2018, police raided an apartment in central Cologne and found a large amount of Castor Beans and ricin powder and paste. Place 2 ounces of the beans into the liquid and let them soak for one hour. The seeds contain between 40% and 60% oil that is rich in triglycerides, mainly ricinolein. Are there any interactions with medications? William Clyde Allen, III, 39, of Logan, Utah, is facing a threat of terrorism charge for sending the beans, from which poison ricin can be created, to Donald Trump. View abstract. View abstract. Covington TR, et al. Amniotic fluid embolism associated with castor oil ingestion. Ricin is a poison found naturally in castor beans. In rainfed situations, seed priming with 1% Kcl for 3 hours and sowing 7 days before onset of monsoon is recommended. Castor oil is produced by pressing ripe seeds that have had their outer covering (hull) removed. If the seed is swallowed whole, poisoning is less likely; however, prompt medical attention is still an absolute necessity. 9-18-1996;88(18):1297-1301. Even larger plants can be removed by hand pulling in wet sandy soils. If the powder is inhaled or injected just a few grains of it can kill an adult. Ricinus communis, the castor bean or castor oil plant, is a species of perennial flowering plant in the spurge family, Euphorbiaceae.It is the sole species in the monotypic genus, Ricinus, and subtribe, Ricininae.The evolution of castor and its relation to other species are currently being studied using modern genetic tools. Single doses vary from 5-120 mL of castor oil. This outer coating can cause nausea; vomiting; diarrhea; abdominal pain; dehydration; shock; blood cell destruction; severe fluid and chemical disturbances; liver, kidney, and pancreas damage; and death. View abstract. Am.J.Gastroenterol. In some people, castor oil can cause stomach discomfort, cramping, nausea, and faintness. 2000;9(5):223-228. CsA Phase 3 Study Group. Garry D, Figueroa R, Guillaume J, Cucco V. Use of castor oil in pregnancies at term. View abstract. View abstract. Cornea 2007;26(2):175-181. Taking castor oil along with "water pills" might decrease potassium in the body too much. Proc.Natl.Acad.Sci U.S.A 2-14-2006;103(7):2268-2273. Get it as soon as Wed, Nov 25. Many herbalists make the use of castor bean oil in order to treat food poisoning. View abstract. Fromtling, R. A. Overview of medically important antifungal azole derivatives. See additional information. Yes, castor oil is extracted from castor beans. Handbook of Nonprescription Drugs. Some laxatives can decrease potassium in the body. For constipation: 15 mL of castor oil is commonly used. View abstract. 2006;100(2):437-438. Present, A. J., Jansson, B., Burhenne, H. J., Dodd, G. D., Goldberg, H. I., Goldstein, H. M., Miller, R. E., Nelson, J. Clin.Microbiol.Rev. Phytother Res 2000;14:40-2. A nonmalicious exposure might occur if a castor bean is chewed and swallowed. The outer coating (hull) of the castor seed contains a deadly poison. It is UNSAFE for women who are pregnant to take whole castor seeds by mouth, as it can cause serious toxic effects or death. View abstract. You may remember that ricin was found in letters sent to some Congress members and the White House, and in the possession of people linked to terrorist and antigovernment groups. Chemical, pathological and toxicological studies of the effects of RICOM-1013-J of Ricinus communis var minor on women volunteers and rodents. Vieira, C., Evangelista, S., Cirillo, R., Lippi, A., Maggi, C. A., and Manzini, S. Effect of ricinoleic acid in acute and subchronic experimental models of inflammation. 1988;1(2):187-217. The Facts About Ricin. Pharmatherapeutica 1987;5(1):57-61. Ricin is part of the waste "mash" produced when castor oil is made. A pilot clinical trial of a recombinant ricin vaccine in normal humans. Natural castor beans extract powder for sale, US $ 10 - 90 / Kilogram, castor beans extract, Powder, Powder, Seed.Source from Xian Plant Bio-Engineering Co., Ltd. on Alibaba.com. Khanal, S., Tomlinson, A., Pearce, E. I., and Simmons, P. A. Pregnancy and breast-feeding: Using castor oil in pregnant women at term (ready to deliver) is POSSIBLY SAFE. 2000;21(11):1033-1036. 80 ($0.35/Ounce) FREE Shipping. The top supplying countries or regions are China, India, and South Africa, which supply 97%, 1%, and 1% of castor beans extract respectively. As a result, the castor bean was the perfect sustainable ingredient for the 3D-printed eyewear collection. Ricin poisoning: a comprehensive review. of beans. 8. Jamaican castor oil retains the nutritional content intact more than the cold pressed castor oil. View abstract. If castor beans are chewed and swallowed, the released ricin can cause injury. And whether castor beans extract is free samples. View abstract. Take the Castor oil ( Arandi Ka Tel in India ) coated rootstock of Sweet Flag ( Ghorvach in India ). The hull contains a deadly poison called ricin. View abstract. View abstract. View abstract. Steingrub JS, Lopez T, Teres D, et al. Ricin is a poison protein found naturally in castor beans from the castor bean plant (Ricinus communis). McFarlin BL, Gibson MH, O'Rear J, Harman P. A national survey of herbal preparation use by nurse-midwives for labor stimulation. J Ethnopharmacol. The seed also contains ricin, a water-soluble toxin, which is also present in lower concentrations throughout the plant. View abstract. The effect of orlistat, an inhibitor of dietary fat absorption, on the absorption of vitamins A and E in healthy volunteers. The caster bean plant, Ricinus communis, is a native of tropical Africa and is grown in many gardens in North America for its fabulous large leaves.Here in zone 5 it is an annual that can grow to 5 feet in one season. The smaller the particle size, the more poisonous the ricin. Phytother Res 2000;14:15-9. A wide variety of castor beans powder options are available to you, such as herbal extract, filling machine. Hsieh, J. F., Que, J., Tsai, S. C., Cheng, K. Y., Lin, W. Y., and Wang, S. J. Mediators.Inflamm. Castor seeds without the hull are used for birth control, constipation, leprosy, and syphilis. It can be extracted from the waste materials (the âmashâ or âbean mealâ) left over from castor oil processing and turned into a powder, pellet, or mist. J Urol. View abstract. Preliminary clinical investigation of the contraceptive efficacy and chemical pathological effects of RICOM-1013-J of Ricinus communis var minor on women volunteers. "Water pills" can also decrease potassium in the body. If castor beans are chewed and swallowed, the released ricin can cause injury. Scarpa, A. and Guerci, A. Antimicrob.Agents Chemother. Zhang, K. E., Wu, E., Patick, A. K., Kerr, B., Zorbas, M., Lankford, A., Kobayashi, T., Maeda, Y., Shetty, B., and Webber, S. Circulating metabolites of the human immunodeficiency virus protease inhibitor nelfinavir in humans: structural identification, levels in plasma, and antiviral activities. Ricin from the hull of the castor seed has been tested as a chemical warfare agent. Castor oil is used as a laxative for constipation, to start labor in pregnancy, and to start the flow of breast milk. 2002;506(Pt A):419-423. 4. Does bowel preparation improve the quality of abdominal gallium scintigraphy? home > vitamins, herbs, dietary supplements a-z listcastor bean. Castor Seeds. Allaire AD, Moos MK, Wells SR. Complementary and alternative medicine in pregnancy: A survey of North Carolina certified nurse-midwives. It is also applied to the skin for osteoarthritis. Ricin can be made from the waste material left over from processing castor beans. View abstract. 6. Luderer, J. R., Demers, L. M., Nomides, C. T., and Hayes, A. H., Jr. minor. Mastication releases ricin and causes injury. J Toxicol Clin Toxicol 2000;38:67-9. If castor beans are chewed and swallowed, the released ricin can cause injury. Kaohsiung.J Med Sci 2005;21(4):153-158. Ricin (rye-sin) is a chemical poison present in castor beans. Ostomy.Wound.Manage. Health benefits of Castor beans. You are encouraged to report negative side effects of prescription drugs to the FDA. Palatnick W, Tenenbein M. Hepatotoxicity from castor bean ingestion in a child. Find out how cosmetic use for castor oil works and what benefits it â¦ What ricin is * Ricin is a poison found naturally in castor beans. Kolts, B. E., Lyles, W. E., Achem, S. R., Burton, L., Geller, A. J., and MacMath, T. A comparison of the effectiveness and patient tolerance of oral sodium phosphate, castor oil, and standard electrolyte lavage for colonoscopy or sigmoidoscopy preparation. Pill Identifier Tool Quick, Easy, Pill Identification, Drug Interaction Tool Check Potential Drug Interactions, Pharmacy Locater Tool Including 24 Hour, Pharmacies. Castor beans are used to make castor oil, but they leave a biproduct of deadly ricin. This is much more effective in moist soils. View abstract. Alibaba.com offers 130 castor beans powder products. Maier, M., Staupendahl, D., Duerr, H. R., and Refior, H. J. Castor oil decreases pain during extracorporeal shock wave application. A copy of The Facts About Ricin is available in Portable Document Format (PDF, 57K, 3pg.). It is a heat-labile powder, dissolvable in water or weak acid. J Clin Pharmacol 1996;36:647-53. After slow boiling this castor beans powder in a wood fire, we get the thick, dark brown Jamaican castor oil. 1999;14(12):1219-1222. Rinse the beans off with cool water and then remove the outer husks with tweezers. Eur J Haematol 1998;60:16-20. Castor oil is a laxative. In late February 2008, law enforcement officials in Las Vegas, Nevada, discovered in a hotel room, a copy of The Anarchist Cookbook, suspected castor beans and a "white powder" thought to be a preparation of ricin. View abstract. Castor is a plant that produces seeds (beans). Either in form of pure organic castor oil, ricinoleate, or hydrogenated castor oil , this vegetable oil is a superb beauty ingredient. What is ricin? 1982;5(2):117-137. Next to red peppers, you can get the most vitamin C from ________________. Challoner KR, McCarron MM. Castor oil is POSSIBLY UNSAFE when taken by mouth long-term or in large doses. (detailed description of each of the ratings). Ophthalmology 2000;107(4):631-639. Castor bean is used to make castor oil, which is a strong laxative. Antimicrob.Agents Chemother. Castor is a plant that produces seeds (beans). View abstract. Weed wrenches can be a very effective tool for small to medium-sized plants with a single stem. Ricin is a poison found naturally in castor beans. View abstract. $19.97 $ 19. No, castor beans are, in no way, related to any other plant in the bean family (not even remotely). Add some sugar in it. The castor beans are ground into a powder that is then 3D printed. Okwuasaba, F. K., Osunkwo, U. Castor beans have been found in ancient Egyptian tombs dating back to 4000 B.C., and the oil was used thousands of years ago in wick lamps for lighting. African Coffee Tree, Arandi, Bi Ma Zi, Bofareira, Castorbean, Castor Bean, Castor Bean Plant, Castor Oil, Castor Oil Plant, Castor Seed, Erand, Eranda, Gandharva Hasta, Graine de Ricin, Huile de Ricin, Huile de Ricin Végétale, Mexico Weed, Palma Christi, Ricin, Ricin Commun, Ricin Sanguin, Ricine, Ricino, Ricinus communis, Ricinus sanguines, Tangantangan Oil Plant, Wonder Tree. J Nurse Midwifery 1999;44:205-16. Castor oil is used topically to soften skin, bunions and corns; and to dissolve cysts, growths, and warts. J Natl.Cancer Inst. We apologize, but this video has failed to load. Castor is a plant that produces seeds (beans). Ophthalmology 2004;111(4):783-791. It can be in the form of a powder, a mist, or a â¦ Clin.Pharmacol.Ther. Ricin (/ Ë r aÉª s Éª n / RY-sin) is a lectin (a carbohydrate-binding protein) and a highly potent toxin produced in the seeds of the castor oil plant, Ricinus communis.A dose of purified ricin powder the size of a few grains of table salt can kill an adult human. Di Pascuale, M. A., Goto, E., and Tseng, S. C. Sequential changes of lipid tear film after the instillation of a single drop of a new emulsion eye drop in dry eye patients. Crit Care Med 1988;16:642-3. Gynecol.Oncol. 1986;39(1):40-42. Roberge-Wade, A. P., Hosking, D. H., MacEwan, D. W., and Ramsey, E. W. The excretory urogram bowel preparation--is it necessary? For starting childbirth: A variety of dosage schedules have been used. 1988;140(6):1473-1474. View abstract. Vehmeyer K, Hajito T, Hostanska K, et al. The caster bean plant itself is not poisonous to humans, but the seeds are. Deadly Caster Bean. Castor seed is the source of castor oil, which has a wide variety of uses. View abstract. View abstract.