Medical Side-Effects of Drug Abuse
The medical side-effects of each drug can vary greatly,
but all have inherent risks. All drugs that are abused have side-effects
that are potentially harmful, and in some cases fatal.
Cocaine and Crack
Smoking crack cocaine can produce a particularly aggressive
paranoid behavior in users. When addicted individuals stop using
cocaine, they often become depressed. This also may lead to further
cocaine use to alleviate depression. Prolonged cocaine snorting
can result in ulceration of the mucous membrane of the nose and
can damage the nasal septum enough to cause it to collapse. Cocaine-related
deaths are often a result of cardiac arrest or seizures followed
by respiratory arrest.
Methamphetamine
The central nervous system (CNS) actions that result from taking
even small amounts of methamphetamine include increased wakefulness,
increased physical activity, decreased appetite, increased respiration,
hyperthermia, and euphoria. Other CNS effects include irritability,
insomnia, confusion, tremors, convulsions, anxiety, paranoia,
and aggressiveness. Hyperthermia and convulsions can result in
death.
Methamphetamine causes increased heart rate and blood pressure
and can cause irreversible damage to blood vessels in the brain,
producing strokes. Other effects of methamphetamine include respiratory
problems, irregular heartbeat, and extreme anorexia. Its use can
result in cardiovascular collapse and death.
Heroin
The short-term effects of heroin abuse appear soon after a single
dose and disappear in a few hours. After an injection of heroin,
the user reports feeling a surge of euphoria ("rush")
accompanied by a warm flushing of the skin, a dry mouth, and heavy
extremities. Following this initial euphoria, the user goes "on
the nod," an alternately wakeful and drowsy state. Mental
functioning becomes clouded due to the depression of the central
nervous system. Long-term effects of heroin appear after repeated
use for some period of time. Chronic users may develop collapsed
veins, infection of the heart lining and valves, abscesses, cellulitis,
and liver disease. Pulmonary complications, including various
types of pneumonia, may result from the poor health condition
of the abuser, as well as from heroin's depressing effects on
respiration.
Narcotics
Among the compounds that fall within this class are morphine,
codeine, and related medications. Morphine is often used before
or after surgery to alleviate severe pain. Codeine is used for
milder pain. Other examples of opioids that can be prescribed
to alleviate pain include oxycodone (OxyContin ® —an oral,
controlled release form of the drug); propoxyphene (Darvon); hydrocodone
(Vicodin); hydromorphone (Dilaudid); and meperidine (Demerol),
which is used less often because of side effects. In addition
to their effective pain relieving properties, some of these medications
can be used to relieve severe diarrhea (Lomotil, for example,
which is diphenoxylate) or severe coughs (codeine).
In addition, narcotic medications can affect regions of the brain
that mediate what we perceive as pleasure, resulting in the initial
euphoria that many narcotics produce. They can also produce drowsiness,
cause constipation, and, depending upon the amount taken, depress
breathing. Taking a large single dose could cause severe respiratory
depression or death.
Source: National Institute on Drug Addiction |