Nitrous Oxide (Dinitrogen Monoxide, Dinitrogen Oxide, Entonox)
Pronunciation: NIGH-truhs OX-eyed
Chemical Abstracts Service Registry Number: 10024-97-2
Formal Names: Dinitrogen Monoxide, Dinitrogen Oxide, Entonox
Informal Names: Fall Down, Gas, Hippie Crack, Hysteria, Laughing Gas, Nitro, Nitrous, Nitrous Acid, Noss, Pan, Shoot the Breeze, Tanks, Thrust, Whippets
Type: Inhalant. Federal Schedule Listing: Unlisted USA Availability: Nonprescription, but sales and usage are controlled in some jurisdictions Read more
Incoming search terms for the article:
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Pronunciation: pay-OH-tih (also pronounced peh-YOH-teh)
Chemical Abstracts Service Registry Number: 11006-96-5
Formal Names: Lophophora williamsii
Informal Names: Bad Seed, Big Chief, Black Button, Britton, Buttons, Cactus, Cactus
Head, Challote, Devil’s Root, Dry Whiskey, Dumpling Cactus, Half Moon, Hikori, Hikuli, Hyatari, Mescal, Mescal Beans, Mescal Buttons, Mescalito, Mescy, Nubs, P, Pellote, Peyotl, Seni, Shaman, Tops
Type: Hallucinogen.
Federal Schedule Listing: Schedule I (DEA no. 7415)
USA Availability: Illegal to possess
Pregnancy Category: None
Uses.
Peyote is part of a cactus plant. Native American folk medicine has used peyote cactus root for doctoring scalp afflictions. In folk medicine peyote has also been used against snake bite, influenza, and arthritis. Scientists have determined that peyote contains substances that might fight infections. Some Native Americans are reported to use light doses of peyote as a stimulant to maintain endurance when engaged in relentless activity permitting little nourishment
or water, a practice sounding much like traditional use of coca. Spaniards observed such peyote usage in the Aztec empire.
Peyote’s main active component is the hallucinogen mescaline. Some other varieties of cactus also contain mescaline, although generally in much smaller amounts. Researchers suspect the peyote cactus may additionally contain chemicals similar to those appearing in the brain upon use of alcohol. In addition to causing hallucinations, peyote can change perception of time.
Psychic effects can include feeling more peaceful and connected with life; craziness of the everyday world can recede. People can use the experience to work through their concerns and may be more open to suggestions. Physical senses may seem enhanced, and barriers between them may melt, such as allowing sounds to be seen.
Normally a Schedule I substance is illegal to possess except under special permission to do research with it, but for many years members of the Native American Church were allowed to possess and use peyote (but not the pure drug mescaline) for religious purposes. During the 1990s their legal situation became confused, and the issue was a matter of controversy when this book was written.
The religion of Peyotism (of which the Native American Church is but one variety) is a topic beyond the scope of this book, but drug-induced visions are only one part of the practitioners’ way of life. Observers have noted that Peyotism can be an effective way of dealing with addiction to alcohol and opiates. Traditional peyote use occurs in a group context, a social gathering
of persons sharing and furthering the same beliefs and goals. A solitary user estranged from such a setting is likely to have a far different peyote experience.
For instance, one element of a peyote session can be nervousness and fear, emotions that may have different impacts depending on whether a user is alone or is with a group of reassuring and supportive persons. A researcher with the Indian Health Service of the U.S. Public Health Service estimated that traditional peyote usage produced bad psychological experiences once in
70,000 doses, a safety record that the researcher attributed to the social context of traditional use. Physical damage has not been noted from traditional use.
Drawbacks.
Chills, muscle tension, nausea, and vomiting are typical unwanted peyote effects.
Abuse factors.
A study published in the 1950s concluded that peyote tolerance, dependence, and craving did not occur from traditional usage—a finding supported by other authorities as well. A canine experiment showed that tolerance to the vomiting effect occurred if dogs received daily peyote for a year.
Drug interactions.
Not enough scientific information to report.
Cancer.
Not enough scientific information to report.
Pregnancy.
Peyote has caused birth defects in hamsters. A study comparing peyote users to nonusers from the same Indian group found no increase in chromosome damage among the users.
Additional information.
Peyote is sometimes called “mescal,” which is also the name of an alcoholic beverage. The two substances are different, and the beverage has no connection with peyote. Likewise “mescal beans” are an alternative peyote name and also the name of a nonhallucinogenic food.
Additional scientific information may be found in:
Bergman, R.L. “Navajo Peyote Use: Its Apparent Safety.” American Journal of Psychiatry
128 (1971): 695–99.
Boyer, L.B., R.M. Boyer, and H.W. Basehart. “Shamanism and Peyote Use among the
Apaches of the Mescalero Indian Reservation.” In Hallucinogens and Shamanism,
ed. M.J. Harner, 53–66. New York: Oxford University Press, 1973.
Bruhn, J.G. “Mescaline Use for 5700 Years.” Lancet 359 (2002): 1866.
Ellis, H. “Mescal: A New Artificial Paradise.” The Contemporary Review 71 (1897). Reprinted
in Smithsonian Institution’s Annual Report 1897. Washington, DC: Author,
1898. 537–48.
Huttlinger, K.W., and D. Tanner. “The Peyote Way: Implications for Culture Care Theory.”
Journal of Transcultural Nursing 5, no. 2 (1994): 5–11.
Kapadia, G.J., and M.B.E. Fayez. “Peyote Constituents: Chemistry, Biogenesis, and Biological
Effects.” Journal of Pharmaceutical Sciences 59 (1970): 1699–1727.
La Barre, W. “Peyotl and Mescaline.” Journal of Psychedelic Drugs 11 (1979): 33–39.
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Pronunciation: NIGH-truhs OX-eyed
Chemical Abstracts Service Registry Number: 10024-97-2
Formal Names: Dinitrogen Monoxide, Dinitrogen Oxide, Entonox
Informal Names: Fall Down, Gas, Hippie Crack, Hysteria, Laughing Gas, Nitro, Nitrous, Nitrous Acid, Noss, Pan, Shoot the Breeze, Tanks, Thrust, Whippets
Type: Inhalant.
Federal Schedule Listing: Unlisted
USA Availability: Nonprescription, but sales and usage are controlled in some
jurisdictions
Uses.
This drug has been known since the 1720s. Some authorities describe nitrous oxide as an opioid; some persons even use the gas to counteract effects from stimulants. Nitrous oxide actions and its recreational use are similar to those of other inhalants. Recreational use is illegal in some jurisdictions but has a venerable history. The writer Samuel Taylor Coleridge, thesaurus compiler Peter Mark Roget, and potter Josiah Wedgwood were all eighteenthcentury notables who relaxed with nitrous oxide.
Although this substance is a pharmaceutical product, it also occurs naturally. For instance, eating lettuce generates enough nitrous oxide that scientists can measure it in a person’s breath. Large quantities are produced by wild prairie grass. Humans do not receive enough nitrous oxide from such natural sources to be affected, however. The substance is also produced by the human
body. One study found the amount to increase as oral hygiene declined. As with the amounts produced by grass and lettuce, the level created by the body is too small to have any known effect on a person. From a global environmental perspective, however, nitrous oxide is a gas that promotes the greenhouse effect and ozone layer destruction, and concern exists about medical
usage affecting the world’s climate. Medical sources are estimated to create 2% of the atmosphere’s supply. Such usage may seem insignificant in that regard, but the gas is so durable in the atmosphere that any artificial source has been described as an environmental hazard.
Medically this drug is used as an anesthetic and to relieve pain ranging from dental work to migraine headache and cancer. In a medical context nitrous oxide is considered a reliable sedative. Experimental usage to treat anxiety has been successful, and one authority has noted a therapeutic antidepressant action. The substance has been used to help persons break entazocine addiction. Researchers report success in using the gas to ease alcohol,
nicotine, and opioid withdrawal and to reduce craving for alcohol, tobacco, and marijuana among addicts. The latter three substances are so different from one another that nitrous oxide’s ability to reduce craving for all of them is remarkable. Some medical practitioners claim that a single dose of the gas actually eliminates craving for those substances, but that claim sounds much
like those made for other “miracle cure” addiction treatments over the years but that turned out to be overly optimistic.
In former times, nitrous oxide was used to fight ear afflictions. For many years the substance was believed to make hearing more acute, but tests of hearing ability while using the compound show no improvement—and volunteers in those tests even felt they had lesser ability to detect soft sounds.
Nitrous oxide can increase pressure in the middle ear, and a case report tells of treatable hearing loss caused by the drug. Hearing defect has been reported from recreational use as well.
Typical nitrous oxide actions are tingling, numbness, dreaminess, euphoria, dysphoria (the opposite of euphoria), altered sensory perceptions, changed awareness of the body, and different experience of time flow. Although nitrous oxide is not classified as a hallucinogen, some descriptions of experiences are indistinguishable from hallucinations, particularly if a user is talented at creating internal imagery. Some persons claim to achieve mystical insight
while under the drug’s influence. Intoxication from a dose lasts only a few minutes.
Drawbacks.
The substance disrupts learning ability. That action has been exploited medically to promote amnesia of unpleasant procedures. In a typical experiment volunteers who inhaled a low dose of the drug showed worsened reaction time, worsened ability to do arithmetic, and general sedation accompanied by nervous system depression (as opposed to stimulation). Interference with driving ability has been noted one-half hour after a dose. In another experiment volunteers felt stimulated; in still another experiment some individuals were sedated, and others became stimulated. One group became weary, uneasy, and confused. Short-term exposure can cause dizziness, nausea, vomiting, and breathing difficulty. Some recreational users quickly inhale
as much nitrous oxide as possible and hold their breath. This technique causes a sudden change of pressure inside the lungs and can rupture small interior structures needed for breathing. Blood pressure can go up or down, depending on dosage. Users can lose consciousness, which may be hazardous in a recreational context due to falls or inability to shut off the gas source. The
substance deactivates vitamin B12, an effect that can cause numbness and difficulty in moving arms and legs. Other results can be impotence and involuntary discharge of urine and feces. Nitrous oxide interferes with blood clotting, and long-term exposure has caused blood abnormalities. Persons with chronic industrial exposure have more kidney and liver disease than usual.
Nitrous oxide can become very cold when released as a gas from a pressurized container, cold enough to cause frostbite upon meeting skin or throat.
Breathing nitrous oxide without an adequate supply of oxygen can be fatal; a little in a closed space or a lot from a face mask can suffocate a user. Although nitrous oxide is called nonflammable, when inhaled it can seep into the abdominal cavity and bowels, mixing with body gases to create a flammable combination. If ignited the result would be like setting off an explosive inside the body; the danger is real enough that surgical personnel administering
nitrous oxide as an anesthetic have been warned about it.
As with many other drugs, effects of nitrous oxide can be influenced by changes in setting. For example, volunteers who knew what to expect performed better on tests than persons who had no information about what nitrous oxide would do to them.
Abuse factors.
In tests of the drug’s appeal, people in general chose nitrous oxide no more often than placebo; such lack of preference is a classic sign of low addictive potential. One experiment revealed a catch to such findings, however: Volunteers who enjoyed nitrous oxide effects chose it more often than placebo, and volunteers who disliked the drug actions chose it less often
than placebo. Thus, overall in the general population the drug might be no more attractive than placebo, but nonetheless some persons may find it captivating.
Such a finding is consistent with drugs having high abuse potential, such as heroin; so the fact that persons typically find no attraction in nitrous oxide does not prove low abuse potential for nitrous oxide. Its nickname “hippie crack” suggests that users have recognized an abuse potential. Nonetheless, a medical practitioner who administered the gas as a drug addiction
treatment said that in 15,000 cases not a single addict indicated subsequent craving for nitrous oxide; such a patient population would be expected to show particular susceptibility if given a substance with abuse potential. The same practitioner notes that regardless of theoretical possibilities, 200 years of experience demonstrate that nitrous oxide is among the least abused drugs.
Tolerance develops in rats. Human experimentation documents tolerance developing to some effects (such as euphoria and pain relief) but not necessarily to all.
Drug interactions.
In an experiment comparing light drinkers of alcohol to moderate drinkers, the moderate drinkers found nitrous oxide more appealing. One group of researchers found that alcohol boosts nitrous oxide effects and that the drug combination creates effects produced by neither substance alone. Those researchers concluded, however, that the combination was not
potent enough to have more appeal than nitrous oxide alone. That conclusion assumes, of course, that drug abusers base their conduct on rational analysis of scientific findings. In a similar experiment comparing users and nonusers of marijuana, when given a choice neither group preferred nitrous oxide more than a placebo, but nitrous oxide effects felt stronger to marijuana users. In rats ketamine boosts effects from nitrous oxide. In a human medical context
that combination is routine and appears safe, but the combination causes brain damage in rats. Persons using morphine or other opiates can experience muscle rigidity when inhaling nitrous oxide, a situation that can interfere with breathing.
Cancer.
Studies do not indicate that nitrous oxide causes cancer in animals. Whether the drug causes cancer in humans is unknown. Genetic damage similar to the amount from daily smoking 10 to 20 cigarettes has been found in health care workers routinely exposed to minuscule amounts of nitrous oxide; such damage might have a potential for causing cancer.
Pregnancy.
Fertility is lower in female rats exposed to nitrous oxide than in rats having no exposure. Lower fertility has also been observed among female health care workers with occupational exposure to the gas, and reduced fertility is also reported for males. Offspring of male mice exposed to nitrous oxide have weighed less than normal and have not matured as fast as normal.
Birth defects resulted from an experiment exposing pregnant rats to the gas for 24 hours. When given to pregnant women during childbirth the drug builds up in the fetal blood and brain; one authority recommends administering oxygen to any newborn whose mother received nitrous oxide while giving birth. As the twenty-first century began researchers reported that the
gas might cause permanent fetal and newborn brain damage, a finding in contrast to previous understanding of the drug. Occupational exposure to nitrous oxide is associated with smaller infants and lower birth weight and may increase likelihood of spontaneous abortion. Pregnant and breast-feeding health workers are advised to avoid rooms where nitrous oxide residues may
contaminate the air. Sperm abnormalities and lower fertility have been noted in male rats exposed to nitrous oxide. Wives of men exposed to the gas have shown a higher spontaneous abortion rate, compared to wives of men with no exposure. The compound is not detected in milk of nursing mothers.
Additional information.
“Nitrous acid” is an unstable nitrite substance. The nickname “nitrous acid” is sometimes used for nitrous oxide, but they are different substances.
Additional scientific information may be found in:
Block, R.I., et al. “Psychedelic Effects of a Subanesthetic Concentration of Nitrous Oxide.”
Anesthesia Progress 37 (1990): 271–76.
Danto, B.L. “A Bag Full of Laughs.” American Journal of Psychiatry 121 (1964): 612–13.
Dohrn, C.S., et al. “Subjective and Psychomotor Effects of Nitrous Oxide in Healthy
Volunteers.” Behavioural Pharmacology 3 (1992): 19–30.
Linden, C.H. “Volatile Substances of Abuse.” Emergency Medicine Clinics of North America
8 (1990): 559–78.
Temple, W.A., D.M. Beasley, and D.J. Baker. “Nitrous Oxide Abuse from Whipped
Cream Dispenser Chargers.” New Zealand Medical Journal 110 (1997): 322–23.
Yagiela, J.A. “Health Hazards and Nitrous Oxide: A Time for Reappraisal.” Anesthesia
Progress 38 (1991): 1–11.
Zacny, J.P., et al. “Examining the Subjective, Psychomotor and Reinforcing Effects of
Nitrous Oxide in Healthy Volunteers: A Dose-Response Analysis.” Behavioural
Pharmacology 7 (1996): 194–99.
