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Inhalant abuse, commonly called huffing, is the purposeful
inhalation of chemical vapors to achieve an altered mental or physical state,
which for most abusers is a euphoric effect. Abusers inhale vapors emitted from
a wide range of substances. In fact, chemical vapors used as inhalants can be
found in over 1,000 common household products. There are several general
categories for substances that may be used as inhalants:
Volatile solvents are liquids that vaporize at room
temperature if left in unsealed containers. Paint thinner, gasoline, correction
fluid, felt-tip markers, nail polish and remover, and glue (such as rubber
cement) all contain volatile solvents.
Aerosols are sprays that contain propellants and solvents such
as toluene--one of the most common solvents found in aerosols. Common aerosols
include paint, deodorant, hair products, cooking products, and fabric
protector. Silver and gold spray paint are particularly popular among inhalant
abusers.
Gases are substances that lack definite shape or volume such
as refrigerants and medical anesthetics. Abusers frequently inhale gases found
in butane lighters, air conditioning units, and propane tanks. Medical
anesthetics such as ether, chloroform, and nitrous oxide are also abused.
Nitrous oxide, commonly called laughing gas, is abused more frequently than any
other gas. It can be obtained from whipped cream dispensers or products that
boost octane levels in racing cars. It may also be purchased in balloons or in
small, sealed vials called whippets, which are sold at raves or drug
paraphernalia stores.
Nitrites are a group of chemicals including cyclohexyl
nitrite, amyl nitrite, and butyl nitrite. Nitrites are used mainly to enhance
sexual experiences rather than to achieve a euphoric effect. Cyclohexyl nitrite
is found in room deodorizers. Amyl nitrite comes in small, mesh-covered, sealed
capsules that are popped or snapped in order to release the vapors. Because of
this popping or snapping, these capsules are frequently called poppers or
snappers. Butyl nitrite is often sold in small bottles that, like amyl nitrite
capsules, are referred to as poppers. Nitrites are available in adult
bookstores and shops and over the Internet.
Who abuses inhalants?
According to the 2000 National Household Survey on Drug Abuse, the
number of new inhalant abusers rose approximately 158 percent from an estimated
392,000 in 1990 to 1,010,000 in 1999. The primary user group was composed of
12- to 17-year-olds--over 636,000 had tried inhalants for the first time in
1999. This number is more than double that of the 18- to 25-year-old user group
(276,000.) Almost 17 million individuals have experimented with inhalants at
some point in their lives.
Inhalants are the fourth most abused substances in the United
States among eighth, tenth, and twelfth graders; alcohol, cigarettes, and
marijuana are the top three, according to the 2000 Monitoring the Future Study.
By the time adolescents reach the eighth grade, one in five has tried inhalants
at least once. Prevalence of lifetime abuse has consistently been higher among
eighth graders than among tenth and twelfth graders. In 2000, 18 percent of
eighth graders, 17 percent of tenth graders and 14 percent of twelfth graders
admitted having used inhalants at least once in their lifetime. Statistics
showing higher lifetime use among eighth graders may be due to the fact that
frequent inhalant abusers typically drop out of school and consequently do not
participate in the tenth and twelfth grade surveys.
Data from the 1999 Youth Risk Behavior Survey (YRBS) indicate that
14.6 percent of students in grades 9 through 12 have abused inhalants at least
once in their lifetime; 4.2 percent of the students reported having abused
inhalants at least once in the 30 days preceding the survey. Males and females
abused inhalants at nearly equal rates--14.7 percent of males and 14.6 percent
of females admitted having used inhalants at least once in their lifetime.
Similarly, 4.4 percent of males and 3.9 percent of females reported having used
inhalants at least once in the 30 days preceding the survey.
Where are inhalants abused?
Inhalants are abused throughout the country. According to the
1999 YRBS, in 11 states the percentage of high school students who reported
having used inhalants at least once in their lifetime exceeded the national
average of 14.6 percent. The states having the highest percentage of inhalant
abuse are West Virginia (20.4%), Tennessee (19.2%), Nevada (19.0%), Wyoming
(17.6%), Ohio (17.1%), Arkansas (16.7%), Montana (16.5%), Wisconsin (16.2%),
Alabama (16.1%), Michigan (15.6%), and North Dakota (15.5%).
How are inhalants abused?
Inhalants are breathed in through the nose or mouth in a
variety of ways. Abusers begin by inhaling deeply; they then take several more
breaths. Abusers may inhale, by sniffing or snorting, chemical vapors directly
from open containers or by huffing fumes from rags that are soaked in a
chemical substance and then held to the face or stuffed in the mouth. Other
methods include spraying aerosols directly into the nose or mouth or pouring
inhalants onto the user's collar, sleeves, or cuffs and sniffing them over a
period of time (such as during a class in school). In a practice known as
bagging, fumes are inhaled from substances sprayed or deposited inside a paper
or plastic bag. Alternatively, the fumes may be discharged into small
containers such as soda cans and then inhaled from the can. Users may also
inhale from balloons filled with nitrous oxide or other devices such as
snappers and poppers in which inhalants are sold.
Signs of Abuse
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Drunk or disoriented appearance
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Paint or other stains on face, hands, or clothing
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Hidden empty spray paint or solvent containers and chemical-soaked
rags or clothing
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Slurred speech
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Strong chemical odors on breath or clothing
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Nausea or loss of appetite
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Red or runny nose
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Sores or rash around the nose or mouth
What are the effects?
For most users, inhalant abuse results in a rapid euphoric
effect that is similar to alcohol intoxication. Users experience initial
excitation, then drowsiness, lightheadedness, and agitation. Inhalant abusers
also report feeling a loss of inhibitions. The chemicals found in volatile
solvents, aerosols, and gases produce a variety of additional effects during or
shortly after use that include dizziness, strong hallucinations, delusions,
belligerence, apathy, and impaired judgment. Additional symptoms exhibited by
long-term inhalant abusers include weight loss, muscle weakness,
disorientation, inattentiveness, lack of coordination, irritability, and
depression. Withdrawal symptoms include sweating, rapid pulse, hand tremors,
insomnia, nausea or vomiting, hallucinations, and, in severe cases, grand mal
seizures.
While abusers of other inhalants seek a euphoric effect,
nitrite abusers--who tend to be adults rather than adolescents--seek to enhance
the sexual experience. Inhaled nitrites dilate blood vessels, increase heart
rate, and produce a sensation of heat and excitement that can last for several
minutes. According to the National Institute on Drug Abuse, use of these drugs
is associated with unsafe sexual practices that greatly increase the risk of
contracting and spreading infectious diseases such as HIV/AIDS and
hepatitis.
Chronic inhalant abuse may result in serious and sometimes
irreversible damage to the user's heart, liver, kidneys, lungs, and brain.
Brain damage may result in personality changes, diminished cognitive
functioning, memory impairment, and slurred speech.
Death from inhalant abuse can occur after a single use or
after prolonged use. Sudden sniffing death (SSD) may result within minutes of
inhalant abuse from irregular heart rhythm leading to heart failure. Other
causes of death include asphyxiation, aspiration, or suffocation. A user who is
suffering from impaired judgment may also experience fatal injuries from motor
vehicle accidents or sudden falls.
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