Food sources: Bissy nut, chocolate, cocoa, coffee, gotu kola, guarana, mate, soft drinks, tea
(excluding many herbal teas), some stimulant drugs sold by mail or over-the-counter, and many overthe-
counter medications.
Effects: Caffeine is one of the most powerful legal stimulants; it gives a mental boost by releasing adrenaline and noradrenaline into the bloodstream. It interferes on a cellular level with the compound adenosine, in effect flatlining the body’s state of arousal, allowing the body to shift into high gear. It may also affect dopamine, acetylcholine, and other neurotransmitters. All coffee, including decaffeinated, contains at least three compounds that act like opiates, or heroin, on the brain. It improves typing skills, mental alertness, energy, reaction time, concentration, and accuracy in performing tasks, and relieves fatigue, mainly by causing the release of norepinephrine in the brain. It improves physical endurance by stimulating the skeletal muscles, increases the production of stomach acid and urine, causes bowel movements, and dilates the bronchial tubes (making it easier to breathe). According to studies, it has no effect on memory or clarity of thought. In addition, the presence of polyphenols in coffee and tea may prevent cancer by inhibiting the conversion of highly carcinogenic nitrosamines in the body. A few cups of coffee a day can help prevent gallstones in men, and four to
five cups a day can reduce colorectal cancer by 24 percent.
Precautions: It should not be taken by anyone who is allergic to stimulants, has heart disease or irregular heartbeats, who suffers from insomnia, anxiety, or panic disorders, or has a peptic ulcer of the stomach or duodenum. A physician should be consulted first if any of the following conditions are present: hypoglycemia, epilepsy, or high blood pressure. To discontinue use, gradually decrease the amount over a month or more, or headaches, irritability, and drowsiness may result.
Not all researchers are convinced of its mental benefits. Some studies show no improvement in recall or response time, and others show that high doses can impair a person’s ability to work with numbers. And it may have a negative effect on a person’s ability to quickly process ambiguous or confusing stimuli. Any improvements in mental functioning may peak at a certain dosage, then decline with increasing consumption. Overall, caffeine may benefit the performance of simple tasks but have no effect on more complex ones such as reading comprehension or advanced mathematics.
Though it is readily absorbed into the bloodstream, researchers still do not understand its full effects upon the human body. Caffeine can lead to a condition in coffee drinkers called coffee intoxication, in which more than four or five cups a day results in irritability, muscle twitches, rambling speech and thought, and trouble sleeping. It can also worsen existing health problems, and may contribute to birth defects, bladder and colon cancer, kidney disease, osteoporosis, hypertension, abnormal heart rhythms, stomach ulcers, and heart disease, though more recent studies refute these findings. When combined with sugar, as in many cola drinks, it can be particularly addictive or habit-forming. It does not replenish a person’s noradrenaline once it is used up, and either depletes or limits the absorption of many vitamins and minerals. Withdrawal symptoms can begin 12 to 36 hours after the last dose, and can include lethargy, irritability, severe throbbing headaches, anxiety, depression, fatigue, and possibly even nausea and vomiting; symptoms can last from one and one-half to seven days.
Other adverse effects include heart palpitations, high blood pressure, muscle twitches, rapid heartbeat, low blood sugar, nervousness, insomnia, increased urination, anxiety, indigestion, increased production of gastrointestinal acid, rectal itching, constipation, impaired concentration, a weakened immune system, bladder irritation and urinary problems (especially in women), and interference with DNA replication. It has been shown to trigger panic attacks in susceptible people —which it does by lowering the body’s production of DHEA and increasing its production of cortisol —and interfere with the ability to sleep in most coffee drinkers. Decaffeinated coffee still contains some caffeine and can also cause these symptoms. More severe and infrequent symptoms include confusion, nausea, stomach ulcers, indigestion, and a burning feeling in the stomach. Overdose symptoms include excitement, insomnia, rapid heartbeat, confusion, fever, hallucinations, convulsions, and coma.
More than five cups a day can increase the heart attack risk to three times that of a non-coffee drinker. Long-term high-dose caffeine intake can promote calcium loss due to its diuretic effect, weakening bones. The lethal dosage has been estimated to be about 10 grams. If caffeine must be consumed, it should be derived from plant sources, as the synthetic form does not have the fatburning properties the natural form does. As for the natural forms, kola nut and yerba mate are the best caffeine sources, guarana is adequate, and tea and coffee rank lowest. Boiled or percolated coffee can increase serum cholesterol levels and the risk of heart disease; drip coffee does not, as the paper niters absorb the harmful oils in the coffee grounds.
Food and drug interactions are also a cause for concern. Grapefruit juice can increase the level of caffeine and extend its effects by up to one-third. Certain antibiotics such as Cipro (ciprofloxacin) and Penetrex (enoxacin) can significantly intensify and prolong the effects of caffeine. Consuming it with other caffeine-containing drugs, central nervous system stimulants, or sympathomimetics can result in overstimulation; with Cimetidine (Tagamet), oral contraceptives, or Isoniazid, increased sensitivity to the effects of the caffeine (Tagamet can increase caffeine levels by as much as 70 percent); with sedatives, sleep inducers, or tranquilizers, increased sensitivity to the sedative or tranquilizer; with MAO inhibitors, dangerously high blood pressure; and with thyroid hormones, an increase in the thyroid effect. Combined with caffeinated beverages, caffeine is likely to be more stimulating. Taken with alcohol, caffeine can slow a person’s reaction time and intensify the effects of alcohol; with cocaine, it can lead to convulsions or extreme nervousness; with marijuana, it can lead to an increased effect of both substances along with a rapid heartbeat; and with tobacco, it can lead to an accelerated heartbeat and a decreased caffeine effect.
Some mail-order “look-alike” drugs that mimic amphetamines have reportedly triggered strokes and irregular heartbeats that ultimately led to death, but this may be blamed more on the stimulant phenylprolanolamine (PPA) than on the caffeine and ephedrine found in these drugs. Still, the healthproblems associated with ephedrine and caffeine have led the FDA to ban drugs and diet aids that contain these two ingredients.
Dosage: The majority of the research shows that healthy people can consume up to two cups of coffee (200 mg) a day without suffering any ill effects; more than 300 mg of caffeine a day, however, is not recommended. Green tea, in addition to containing about 100 mg of caffeine per serving, contains polyphenols, or strong antioxidant nutrients (which protect against arterial damage that can eventually result in heart attacks or stroke), making it preferable to black tea. Adding milk ties up some of the beneficial chemicals, rendering them useless.
| Family Piperaceae (Pepper Family); Pipereae Tribe The genus Piper includes some 1,000 to 1,200 species, many of which are ethnobotanically significant (Halzl et al. 1993, 191; Schultes and Raffauf 1990, 364*). Half of all Piper species occur in the American tropics. These include epiphytic plants, climbers, half-shrubs, and small trees. A large number of essential oils occur in the genus, so many leaves, inflorescences, and fruits are highly aromatic and have therefore attracted cultural attention. Some Piper species are said to have psychoactive, and others aphrodisiac, effects. Safrole and asarone have been identified in various species (such as Piper divaricatum Meyer, P. manassausense, P. futokadsura, and P. sarmentosum) (Avella et al. 1994). Piper abutiloides Kunth, Piper cincinnatoris Yuncker, and Piper lindbergii C. DC., which are used in Brazilian folk medicine as analgesics, are pharmacologically active (Costa et al. 1989). It has even been suggested that the common black pepper (Piper nigrum 1.) is capable of inducing hallucinogenic effects (Schultes and Hofmann 1980,368*). The so-called red pepper comes not from a Piper species but from the Peruvian pepper tree (Schinus moUe 1.; cf. Norman 1991,53*). In South America, it is used to aid in the fermentation of chicha and also as a beer additive. Piper amalago L. [syn. Piper medium Jacq.]amalago pepper The leaves of this bush, which is indigenous to Central America (southern Mexico, Belize), are smaller and narrower than those of Piper auritum, but the plant is otherwise quite similar in appearance. When rubbed, its leaves smell strongly of the essential oil safrole. It may be possible to use this pepper species for psychoactive purposes. The Maya, who call the plant yaaxpehelche’, regard it as the “younger sibling” or “female” counterpart of Piper auritum. Piper angustifolium Ruiz et Pavon-matico Piper cubeba L. [syn. Cubeba officinalis Miq. (or Piper elongatum Vahl [syn. Artanthe elongata |
Piper interitum Trelease-tetsi pepper The Kulina Indians of Peru use the leaves and roots of Piper interitum, which they call tetsi, to produce a snuff used as a substitute for tobacco snuff (cf. Nicotiana tabacum) that is alleged to have psychoactive properties (Schultes 1978b, 227*; Schultes and Raffauf 1990, 365 f.*). Piper longum 1. [syn. Chavica roxbhurgii Miq., Piper plantagineum Schlecht. Piper sp.-syryboa Piper spp.-masho-hara Literature |
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| Family
Rubiaceae (Coffee Family) Most of the approximately 1,200 to 1,400 Psychotria species that have been described are found in the tropical zones of Central and South America, although a few species occur in the rain forests of Malaysia and in New Caledonia (Standley 1930). In the Caribbean, the seeds of some species, e.g. Psychotria nervosa, are referred to as wild coffee and drunk as a coffee substitute (cf. Coffea arabica). The fruits of many Psychotria species (P. involucrata Swartz, P. nudiceps Standley) are regarded as poisonous (Schultes 1969, 158; 1985). N,N-DMT has been demonstrated to be present in several species. Some contain the alkaloid psychotridine, and others indoles (Lajis et a1. 1993). Some species (Psychotria poeppigiana Muel1. Arg., Psychotria ulviformes Sterm.) appear to contain opium-like constituents (Elisabetskyet a1. 1995, 78). The Yucatec Maya regard the Central American species Psychotria acuminata Benth. (ixanal) and Psychotria tenuifolia Sw. (x’anal) as «male” and «female” counterparts and use them to treat nervousness and sleeplessness (Arvigo and Balick 1994, 45, 105*). In Europe, Psychotria emetica (1. fi1.) Mutis, the Peruvian vomit plant, was known in particular as a counterfeit for ipecac (Cephaelis ipecacuanha [Brot.] Tussac [syn. Psychotria ipecacuanha (Brot.) Stokes]) (Ratsch 1991a, 136f.*; Schneider 1974, 3:135f.*). The vomit-inducing substance emetine is said to occur in numerous Psychotria species (Fisher 1973, 231).
Psychotria brachypoda (Muell. Arg.) Britton This Psychotria is used traditionally as a pain medicine. The species contains active constituents with opium-like, analgesic effects (Elisabetsky et a1. 1995). Psychotria carthaginensis Jacquin-sameruca According to information provided by the Colombian Makuna Indians, eating the fruit of this bush will induce perceptual alterations that can persist for days, nausea, weakness, and fever (Schultes 1969, 158). The leaves, which contain some N,N-DMT, are used as an ayahuasca additive (Schultes 1985, 118). Psychotria colorata (Willd. ex R. et S.) Muell. Arg. This bush is known as perpetua do mato in the Brazilian Amazon, where it is used in folk medicine to treat ear and lower abdominal pain. The Caboclos produce eardrops by heating the flowers in banana leaves on hot ashes. A decoction of the roots and fruits is drunk to treat abdominal pains. The leaves and flowers have been found to contain alkaloids with opium-like effects whose structures have not yet been determined (Elisabetsky et a1. 1995). |
Psychotria poeppigiana Muel!. Arg.-oreja del
diablo (Spanish, “clevil’s ear”) In Amazonia (Ecuador), the nectar of this species is used as a traditional ear medicine. The leaves are rich in N,N-DMT and are evidently well suited for use as an ayahuasca additive (ayahuasca analogs) (Rob Montgomery, pers. comm.). In the Putumayo region of Colombia, the roots are used to treat lung ailments (Schultes 1985, 119; Schultes and Raffauf 1990, 395*). Among the Ka’apor, Psychotria poeppigiana Muel1. Arg. is called yawaru-ka’a, «black jaguar plant;’ or tapi’i-ka’a, «tapir plant” (Balee 1994, 303*). These names suggest that the plant may be used for shamanic purposes (animal transformation) . Psychotria psychotriaefolia (Seem.) Standley In the Colombian Putumayo region, the leaves of this species are used together with Banisteriopsis caapi to produce ayahuasca. In Ecuador, both the leaves and the fruits are used for this purpose (Schultes 1969, 158). The addition of this plant to the mixture is said to deepen and prolong the visions. The leaves contain N,N-DMT. The Kofan Indians call the plant oprito. They use this same name to refer to the “heavenly people” that they contact while under the influence of ayahuasca (164). This species may be synonymous with Psychotria viridis. Psychotria spp. Among the many members of the genus Psychotria, there are certainly other species that contain N,N-DMT and may be suitable for use as ayahuasca additives. We already know of some as yet undescribed members of the genus that are used to make ayahuasca and are often called by the name chacruna. Literature See also the entries for Psychotria viridis, ayahuasca, and N,N-DMT. Elisabetsky, Elaine, Tania A. Amador, Ruti R. Albuquerque, Domingos S. Nunes, and Ana do C. T. Carvalho. 1995. Analgesic activity of Psychotria colorata (Willd. ex R. et S.) Muell. Arg. alkaloids. Journal ofEthnopharmacology 48:77-83. Fisher, H. H. 1973. Origin and uses of ipecac. Economic Botany 27:231-34. Lajis, Nordin H., Zurinah Mahmud, and R. F. Toia. 1993. The alkaloids of Psychotria rostrata. Planta Medica 59:383-84. Schultes, Richard Evans. 1969. De Plantis Toxicariis e Mundo Novo Tropicale Commentationes IV. Botanical Museum Leaflets 22 (4): 133-64. —. 1985. De Plantis Toxicariis e Mundo Novo Tropicale Commentationes XXXIV: Biodynamic Rubiaceous plants of the Northwest Amazon. Journal ofEthnopharmacology 14:105-24. Small, John K. 1928. Psychotria sulzneri. Addisonia 13:47-48. Standley, Paul C. 1930. The Rubiaceae ofColombia. Botanical Series, vol. 8, no. 1. Chicago: Field Museum of Natural History. |
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| Family
Rubiaceae (Coffee Family) Forms and Subspecies It is possible for white thorns (domatia) to develop along the central nerve on the underside of some chacruna leaves. South American ayahuasqueros distinguish different forms of the plant on the basis of the number of these thorns. Plants with three thorns per leaf are considered to be particulady potent, medicinal, and well suited for the production of ayahuasca. A form with nine thorns is regarded as the highest quality. Synonyms Psychotria psychotriaefolia (Seem.) Standley may be a synonym (cf. Psychotria spp.).
Folk Names Amirucapanga, cahua (Shipibo-Conibo), chacrona, chacruna, chagropanga, chalipanga, hor6va (Campa), kawa (Cashinahua/Sharanahua), oprito (Kofan, “heavenly people))), sami ruca History It is not known when the use of chacruna in Amazonia first began. It is presumably as old as the use of Banisteriopsis caapi and ayahuasca. But it was only in the 1960s that the American ethnobotanist Homer Pinkley (a student of Schultes) first observed and described the psychoactive use of the plant among the Kofan Indians of Colombia, who use it as an ayahuasca additive (Pinkley 1969). Linnaeus, who provided the first botanical description of the genus Psychotria, derived the name of the genus from Psychotrophum (Patrick Browne), a term that had already been circulating in the literature. Unfortunately, he did not provide any reason for this action. It is quite possible that the genus name means that it “influences the psyche)) (cf. Pinkley 1969). Distribution The tropical bush is at home primarily in the undisturbed forests of the Amazon lowlands but has spread from Colombia to Bolivia and into eastern Brazil as a result of extensive cultivation. It is said to occur also north of the Amazon region and into Central America (Pinkley 1969, 535). Today, there are also plantations in Hawaii and northern California. Cultivation The plant is difficult to propagate from seed. The seeds can require sixty days to germinate. Sometimes, only one seed in a hundred will germinate. In contrast, cultivation from cuttings is much easier and more successful. A small branch needs only to be set in the ground and watered thoroughly. Plants can be grown even from a branch piece having only two leaves, and it is possible for individual leaves and leaf pieces to develop into plants. It has been claimed that a young plant once developed from a piece of leaf that was accidentally covered with soil. The plant requires moist, humus-rich soil. It can survive an occasional flooding of its location, as occurs in Amazonia (Pinkley 1969). Appearance The evergreen bush can grow into a small tree with a very woody trunk, but in cultivation it is usually maintained at a height of 2 to 3 meters. It has long, narrow, ovate leaves that are light green to dark green in color and whose upper side is shiny. The flowers have greenish white petals and are attached to long stalks. The red berry fruits contain several small ovate-oval retuse seeds (approximately 4 mm in length). The convex side is streaked with three parallel grooves with irregular edges. Psychotria viridis is easily confused with other Psychotria species. Psychotria psychotriaefolia in particular is very similar in appearance and may in fact be a synonym (see Psychotria spp.). |
Psychoactive Material
- LeavesPreparation and Dosage The leaves must be collected in the morning and are used both fresh and dried to manufacture ayahuasca and ayahuasca analogs. The dried leaves are coffee brown in color. The leaves also can be used to produce an extract that thickens to a tarlike mass and can be smoked. As little as 1 ml of the juice pressed from the fresh leaves is said to contain some 100 mg of N,NDMT (cf. Russo 1997,6). Ritual Use See ayahuasca. Artifacts See ayahuasca (“Ayahuasca Music-A Discography;’ on page 711). Medicinal Use The Machiguenga use juice that has been freshly pressed from the leaves of Psych0 tria viridis or another Psych0 tria species (Psychotria spp.) as eyedrops for treating migraine headaches (Russo 1997, 5). While Psychotria viridis does have a reputation as a medicinal plant, such use has been little studied to date (see also ayahuasca). Constituents The leaves contain 0.1 to 0.61% N,N-DMT along with traces of MMT and MTHC (= 2-methyltetrahydro-~- carboline). The DMT content is typically around 0.3%. Psychotria leaves appear to contain the highest concentrations of DMT in the early morning, which is why they should be collected at that time (Dennis McKenna, pers. comm.). Effects The Kofan Indians say that by mixing Psychotria viridis leaves into their yage (= ayahuasca; cf. Banisteriopsis caapi), they are able to see the oprito, the small “heavenly people” that bear the same name as the plant (Pinkley 1969, 535). When used as an ayahuasca additive, the leaves manifest typical DMT effects (see ayahuasca). Commercial Forms and Regulations The dried leaves are occasionally available from sources specializing in ethnobotanical products. The legal situation with respect to the raw plant material has not been clarified. Literature See also the entries for Psychotria spp., ayahuasca, and ayahuasca analogs. Der Marderosian, Ara H., et al. 1970. The use and hallucinatory principles of a psychoactive beverage of the Cashinahua tribe (Amazonia basin). Drug Dependence 5:7-14. Pinkley, Homer V. 1969. Etymology of Psychotria in view of a new use of the genus. Rhodora 71:535-40. Prance, G. T., and A. E. Prance. 1970. Hallucinations in Amazonia. Garden Journal 20:102-7. Russo, Ethan B. 1992. Headache treatments by native peoples of the Ecuadorian Amazon: A preliminary cross-disciplinary assessement. Journal ofEthnopharmacology 36: 192-206. —. 1997. An investigation of psychedelic plants and compounds for activity in serotonin receptor assays for headache treatment and prophylaxis. MAPS 7 (1): 4-8. |
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| Family
Leguminosae: Papilionideae (Legume Family); Subfamily Fabodeae Forms and Subspecies The genus consists of some three hundred species that are found in the tropical and subtropical regions of both hemispheres (Schultes and Hofmann 1980,338*). Synonyms Dolicholus phaseoloides Sw. Rhynchosia phaseoloides (Sw.) DC.
Folk Names Ah rna’ ak’ (Lacandon, “ara parrot vine”), antipusi, atecuixtle, atecuxtli, bejuco culebra, bird’s eyes, casanpulgas, chanate pusi, cha’pak’ (Mayan), colorin chiquito, colorincito, colorines (cf. Erythrina americana), coralito, frijol de chintlatlahua, frijolillo, guarecitas, gun-ma-muy-tio-fia (Chinantec), krebsaugenbohne, liucai-nofal (Chontal), negritos, ojitos de picho (Spanish, “little eyes of the dove”), ojo de cangrejo (Spanish, “crab’s eye”), ojo de chanate (Mexico, “eye of the thrush [Cassidix mexicanus]“), ojo de culebra (Spanish, “eye of the snake”), ojo de pajarito (Spanish, “eye of the little bird”), ojo de zanate (Mexico, “eye of the thrush [Cassidix mexicanus]“) , pega palo, peonia, perico, peyote (see Lophophora williamsii) , pipilzintli, piule, pulguitas, puren-sapicho, saltipus, senecui1che (see Heimia salicifolia), shasham wupu’ar (Pima), sinicuiche, xenecui1che Plants and Fungi Known in Mexico as Piule (from Martinez 1987, 757*; Ott 1993,419*; Santesson 1938; supplemented)
History The Aztecs may have used the striking seeds of this plant for ritual purposes (Schultes and Hofmann 1980,340*). The red-black seeds, which are known by the name piule (Santesson 1938), were or are used ritually in the village of San Pedro Nexapa, on the slopes of Popocatepetl (Mexico) (Wasson and Wasson 1957, 306 f.). In Mexico, the name piule has been used as a catchall term for psychoactive plants since the twentieth century (Martinez 1987, 757*; cf. Psilocybe mexicana, Turbina corymbosa). The word piule may have been derived from the Nahuatl peyotl (= Lophophora williamsii). Accordingly, piuleros are those people who use a psychoactive substance (piule) to divine and/or heal (Santesson 1937a, 1937b). Some species, e.g., Rhynchosia longeracemosa Mart. et Gal., are now also known by the name peyote (Schultes 1966,296*). Distribution This climber is found throughout the tropical and warm regions of Mexico and on many islands of the Caribbean (Cuba) (von Reis and Lipp 1982, 139*). It usually grows at the edge of forests and in clearings. It is frequently found in fallow milpas (slash-and-burn gardens). Cultivation The seeds are best pregerminated in a mixture of soil and moss. The seedlings must be planted in topsoil and watered well as soon as the seeds have opened and the young shoots have become visible (Grubber 1991, 56*). The plant requires a moist, warm climate and in northern zones can thus be grown only as a houseplant. Appearance The vine, which can grow to a length of several meters, has the typical leaves of the Legume Family, in which three leaves sit upon each stalk. The greenish flowers are arranged in long racemes. The bean-shaped seedpods are constricted between the two small, red-black, almost spherical hard seeds (4 to 6 mm long). The kidney-shaped seeds of the closely related Rhynchosia longeracemosa are “mottled light-and dark-brown” (Schultes and Hofmann 1992,55*). Rhynchosia pyramidalis is often confused with Abrus precatorius 1. (jequirity, rosary pea), which is widely feared as a poisonous plant. It too produces red-black seeds, although they are somewhat larger (6 to 7 mm long). Jequirity can be recognized by its smaller, pinnate leaves. The seeds of Abrus precatorius contain abrin, a lectin mixture that is unstable when heated and one of the most potent of all known toxins, along with several alkaloids (Ghosal and Dutta 1971; Nwodo 1991; Nwodo and Alumanah 1991; Roth et al. 1994, 83 f. *). In Mexico, the seeds of Abrus precatorius are known as colorines (see Erythrina spp.). They are associated with the mescal bean cult (see Sophora secundiflora); ashes from the leaves are used as a coca additive (see Erythroxylum coca). |
Psychoactive Material
- Seeds (semina rhynchosiae phaseoloides, bird’s eyes, colorines) - StalksPreparation and Dosage In entheogenic rituals in the high valleys of Mexico, twelve untreated seeds were ingested with six pairs of Psilocybe aztecorum per person (Wasson and Wasson 1957,306). Ritual Use To date, the only description that is available pertains to the ritual use of the seeds in connection with the ingestion of mushrooms. The ingestion of the seeds is presumably more symbolic in meaning, for the red-black seeds represent bodiless, free-floating eyes, a symbol of psychedelic and prophetic vision. The Zapotec of Miahuatlan are said to have used the seeds of the closely related species Rhynchosia minima (1.) DC. [syn. Dolicholus minimus] in magical rituals (Dfaz 1979,87*). Artifacts The small, durable seeds are made into amulets and chains (cf. Erythrina americana, Erythrina spp., Sophora secundiflora). Wall paintings at Teopantitla (near Teotihuacan) allegedly show the seeds falling out of the hand of the rain god TIMoc (D. McKenna 1995, 102*). The red-black coloration is said to be an indication of the seeds’ hallucinogenic use (Schultes 1970c; Schultes and Hofmann 1980, 340*). Medicinal Use The seeds are regarded as a narcotic and poison in Mexican folk medicine (Jiu 1996, 254*). The Yucatec Maya use the root along with other herbs to produce a medicine to treat pellagra284 (Pullido S. and Serralta P. 1993,37*). The Pima of northern Mexico grind the seeds on a mortar and strew the powder into the eyes of those who are suffering from the “evil eye” (Pennington 1973,223*). In the Dominican Republic, the stalks are used to prepare an aphrodisiac drink (Dlaz 1979,87*). Constituents The chemistry of the constituents has not yet been clarified. Reports about the alkaloids are contradictory (Santesson 1937a). The seeds apparently contain alkaloids similar to those in Sophora secundiflora and Erythrina spp. (D. McKenna 1995, 102*). The root may possibly contain niacin or nicotine amide, for it is used in the Yucatan as a folk medicine to treat pellagra (maidism). Whether the flavonol rhynchosin (Adinarayana et al. 1980) occurs in the plant is unknown. Effects In Mexico, it is commonly believed that the seeds cause “imbecility” or “madness” (Diaz 1979, 87*; Jiu 1996, 254*). There are as yet no reports of actual psychoactive effects. An extract of the seeds is said to have curare-like activity (Schultes and Hofmann 1980,340*). Commercial Forms and Regulations The seeds are sometimes available through the international seed trade. Mexican Indians sometimes sell necklaces with beads of Rhynchosia seeds. Literature See also the entries for Erythrina spp. and Sophora secundiflora. Adinarayana, Dama, Duvvuru Gunasekar, Otto Se1igmann, and Hildebert Wagner. 1980. Rhynchosin, a new 5-deoxyflavonol from Rhynchosia beddomei. Phytochemistry 19:483-84. Ghosal, S., and S. K. Dutta. 1971. Alkaloids of Abrus precatorius. Phytochemistry 10:195-98. Grear, J. W. 1978. A revision of the New World species of Rhynchosia (Leguminosae-Fabodeae). Memoirs ofthe New York Botanical Garden 31 suppl. (1): 1-168. Nwodo, O. F. C. 1991. Studies on Abrus precatorius seeds. I: Uterotonic activity of seed oil. Journal of Ethnopharmacology 31 (3): 391-94. Nwodo, O. F. C., and E. O. Alumanah. 1991. Studies on Abrus precatorius seeds. II: Antidiarrhoeal activity. Journal ofEthnopharmacology 31 (3): 395-98. Ristic, S., and A. Thomas. 1962. Zur Kenntnis von Rhynchosia pyramidalis (Pega Palo). Archiv fur Pharmakologie 295:510. Santesson, C. G. 1937a. Notiz tiber piule, eine mexikanische Rauschdroge. Etnologiska Studier (Goteborg) 4: 1-11. —. 1937b. Piule, eine mexikanische Rauschdroge. Archiv fur Pharmazie: 532-37. —. 1938. Noch eine mexikanische “Piule”Droge: Semina Rynchosiae phaseoloidis DC. [sic!]. Etnologiska Studier 6: 179-83. Wasson, R. Gordon, and Valentina P. Wasson. 1957. Mushrooms, Russia, and history. New York: Pantheon Books. |