How long the effects last and how intense they are depend on the method of use. Injecting or smoking cocaine produces a quicker and stronger but shorter-lasting high than snorting. The high from snorting cocaine may last 15 to 30 minutes. The high from smoking may last 5 to 10 minutes. However, even people involved with non-needle cocaine use place themselves at a risk for HIV because cocaine impairs judgment, which can lead to risky sexual behavior with infected partners see "Cocaine, HIV, and Hepatitis" textbox.
Studies have shown that cocaine use speeds up HIV infection. According to research, cocaine impairs immune cell function and promotes reproduction of the HIV virus. Research also suggests that people who use cocaine and are infected with HIV may be more susceptible to contracting other viruses, such as hepatitis C, a virus that affects the liver. In addition, people report irritability and restlessness from cocaine binges, and some also experience severe paranoia, in which they lose touch with reality and have auditory hallucinations —hearing noises that aren't real.
Yes, a person can overdose on cocaine. An overdose occurs when a person uses enough of a drug to produce serious adverse effects, life-threatening symptoms, or death.
An overdose can be intentional or unintentional. Death from overdose can occur on the first use of cocaine or unexpectedly thereafter. Many people who use cocaine also drink alcohol at the same time, which is particularly risky and can lead to overdose.
Others mix cocaine with heroin, another dangerous—and deadly—combination. Cocaine is more dangerous when combined with other drugs or alcohol. It is easy to lose control over cocaine use and become addicted. Then, even if you get treatment, it can be hard to stay off the drug. People who stopped using cocaine can still feel strong cravings for the drug, sometimes even years later.
The information on this site should not be used as a substitute for professional medical care or advice. Contact a health care provider if you have questions about your health. Learn More No links available. See, Play and Learn Images. Cocaine is a powerful stimulant that is used legally as a local anesthetic for some eye, ear, and throat surgeries. Cocaine is also called coke, C, snow, flake, or blow.
It may contain other substances, such as cornstarch, talcum powder, or sugar. It may also contain other drugs, such as another local anesthetic called procaine or a stimulant such as amphetamine. Small amounts of cocaine make a person feel euphoric, energetic, talkative, and mentally alert. It also decreases appetite and the need for sleep.
When large amounts of cocaine are taken, the high is more intense. But large doses can cause strange or violent behavior in which the person may have tremors or muscle twitches or become paranoid. After using cocaine, the person feels irritable, tired, and depressed. This is called a coke crash. When a person takes the drug at higher and higher doses a binge , it can cause increasing irritability, restlessness, and paranoia that can result in a serious loss of touch with reality paranoid psychosis.
J Lung Pulm Respir Res. Ontario: Addiction Research Foundation; Black E. Cocaine: What you need to know. National Drug and Alcohol Research Centre; Recent cocaine use is a significant risk factor for sudden cardiovascular death in 15—year-old subjects: a forensic case—control study.
Australian Institute of Health and Welfare. National Drug Strategy Household Survey Canberra: AIHW; Second Edition.
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