Heroin is an illegal, highly addictive type of opioid. It is a white or brown powder or a black, sticky substance (black tar heroin). It can be sniffed, snorted, smoked, or injected into a muscle or vein. Other names for heroin are smack, junk, H, dope, and ska.
Heroin is often used along with other drugs, especially cocaine and alcohol. Some people snort alternate lines of heroin and cocaine (crisscrossing). Or they may inject it with another drug (speedball).
Heroin is often mixed (cut) with other drugs, such as fentanyl. It may also be cut with things like sugar or powdered milk or with poisons, such as strychnine.
The pleasurable sensation from heroin is called a rush. How intense the rush is depends on how much was taken and how fast the drug entered the brain. The rush occurs within seconds when heroin is smoked or injected directly into a vein. It takes at least 10 minutes when the drug is sniffed.
Along with the rush, heroin usually causes a warm flushing of the skin, very small (pinpoint) pupils, watery eyes, runny nose, dry mouth, and a heavy feeling in the arms and legs. Heroin may also cause nausea, vomiting, constipation, and severe itching. Soon after the rush, the person feels drowsy and very relaxed. Breathing and heart rate slow. Thinking becomes cloudy. The person may fall into a state like a trance. This can last 4 to 6 hours.
With repeated use, heroin causes the person to need higher and higher doses of the drug to get the same effect. This is called tolerance. The body may also get used to the drug. This is called physical dependence. It can occur within a few weeks if the drug is used daily. This leads to uncomfortable withdrawal symptoms within a few hours if the person stops using heroin or uses less.
Addiction can develop within a few weeks if the drug is used daily. Heroin addiction means that a person has a strong need to keep using the drug even though it causes harm to themself or others. This is also called opioid use disorder.
Heroin use can lead to serious health problems, such as:
Using heroin can be dangerous. An overdose may cause trouble breathing, low blood pressure, a low heart rate, a coma, or death.
If you or someone you know uses heroin, talk to your doctor or pharmacist about a naloxone rescue kit. Naloxone is medicine that may reverse the effects of heroin if given soon enough after an overdose. Having a naloxone kit may save a life.
Heroin can be found in the urine for up to 24 hours and in blood for as long as 48 to 72 hours after use.
Signs that a person may be using heroin include:
If a person decides to stop using heroin, it's safest to go through withdrawal under a doctor's care. Treatment for opioid use disorder may include medicine, group therapy, counseling, and education. The person may need to stay in a hospital or treatment center.
Sometimes medicines are used. They can help the person take less heroin over time and then quit. Medicines can help control cravings. And they can ease withdrawal symptoms. Without medicine, people who have opioid use disorder usually go back to using heroin.
Treatment focuses on more than heroin use. It helps the person understand why they started using heroin in the first place. It also helps the person cope with the emotions that may come with trying to stop using heroin.
Counseling can also help the person's friends and family. It can provide support. And it can teach those people how to give the help that the person needs.
Heroin is an illegal drug that is highly addictive. It's an opioid, like some types of medicines that doctors prescribe to treat pain. Examples include hydrocodone, oxycodone, and morphine. These medicines have rules for legal use. Heroin does not. There is no quality control. The strength of each dose is not known. It's often mixed (cut) with other drugs like fentanyl or things like powdered milk. It may also be cut with poisons, such as strychnine.
Often, heroin use starts with the misuse of a prescribed opioid. A person may then switch to heroin because it costs less, in spite of the greater danger of using it.
A person who uses heroin often will start needing bigger and bigger doses of the drug to get the same effect. This is called tolerance. If a person uses heroin regularly, the body gets used to it. This is called physical dependence. This leads to withdrawal symptoms within a few hours if the person stops using it or uses less.
Someone who uses heroin daily can become addicted to it within a few weeks. Addiction means that the person has a strong need to keep using heroin even though it causes harm to themself or to others. Heroin addiction is also called opioid use disorder.
Using heroin can be dangerous. An overdose may cause trouble breathing, low blood pressure, a low heart rate, a coma, or death. It's hard to know how much heroin can cause an overdose. A lot depends on how strong the drug is and what it's cut with. And if a person starts using less heroin, they may lose tolerance to it. The person may be at a higher risk of overdose.
If you or someone you know uses heroin, talk to your doctor or pharmacist about a naloxone rescue kit. Naloxone is medicine that may reverse the effects of heroin if given soon enough after an overdose. Having a naloxone kit may save a life.
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