For more mental health resources, see our National Helpline Database. Heroin is a highly addictive drug that is used in various ways. In addition to the classic injection method, it can be snorted, sniffed, and smoked, depending mainly on the purity of the drug and the preference of the user. Heroin can be injected into a vein or a muscle. It can be smoked in a pipe or mixed with a marijuana joint or a regular cigarette.
Heroin , also known as diacetylmorphine and diamorphine among other names,  is an opioid used as a recreational drug for its euphoric effects. Medical grade diamorphine is used as a pure hydrochloride salt which is distinguished from black tar heroin , a variable admixture of morphine derivatives—predominantly 6-MAM 6-monoacetylmorphine , which is the result of crude acetylation during clandestine production of street heroin. In a clinical context the route of administration is most commonly intravenous injection; it may also be given by intramuscular or subcutaneous injection, as well as orally in the form of tablets. Common side effects include respiratory depression decreased breathing , dry mouth, drowsiness, impaired mental function, constipation, and addiction. Treatment of heroin addiction often includes behavioral therapy and medications.
Smoking is a practice in which a substance is burned and the resulting smoke is breathed in to be tasted and absorbed into the bloodstream. Most commonly, the substance used is the dried leaves of the tobacco plant, which have been rolled into a small rectangle of rolling paper to create a small, round cylinder called a " cigarette ". Smoking is primarily practised as a route of administration for recreational drug use because the combustion of the dried plant leaves vaporizes and delivers active substances into the lungs where they are rapidly absorbed into the bloodstream and reach bodily tissue. In the case of cigarette smoking these substances are contained in a mixture of aerosol particles and gases and include the pharmacologically active alkaloid nicotine ; the vaporization creates heated aerosol and gas into a form that allows inhalation and deep penetration into the lungs where absorption into the bloodstream of the active substances occurs. In some cultures, smoking is also carried out as a part of various rituals, where participants use it to help induce trance -like states that, they believe, can lead them to spiritual enlightenment.
Long-term substance abuse of legal and illegal substances causes millions of deaths and costs billions for medical care and substance abuse rehabilitation. The effects of drug abuse extend beyond users, spilling over into the larger society, imposing social and economic costs. The U.