
Heroin is a highly addictive illegal drug. On the street, it is also called smack, horse, and H.
Heroin belongs to a group of drugs called opioids. It is made by chemically changing morphine, a natural substance found in opium poppies. It looks like white or brownish powder, which can be refined or lumpy. Street heroin can be pure or diluted ("cut") with substances like starch, powdered sugar, other drugs or strychnine.
Heroin can be injected by needle, snorted, or smoked (called "chasing the dragon"). It can be added to regular cigarettes or marijuana joints. Possessing, producing, or trafficking in heroin can result in fines, prison sentences, and criminal records.
If you use drugs often, you can develop serious personal problems. Using drugs can become more important than your family and friends. You may continue using even when your job or schoolwork is suffering, or when you run into financial, spiritual or legal problems. Young people who use drugs heavily may not learn how to solve problems, handle their emotions and become mature, responsible adults. Babies born to heroin-addicted mothers are often premature and underweight, and go through withdrawal at birth. They can be infected with HIV, hepatitis and blood poisoning.
If you use heroin regularly, you develop tolerance. This means you need more and more to feel the same effects. Eventually you become dependent on it. You can't cut back or stop using it because you feel so bad when you try. All your thoughts are about how to get more. When a dependent person stops using heroin, withdrawal symptoms start a few hours later. These symptoms include restlessness, yawning, runny nose, tears, diarrhea, cramps, goose bumps, low blood pressure and strong craving. These effects get stronger for two to four days, and then gradually weaken. Depression, weakness and stress can last for several weeks or months.