LYCOS RETRIEVER 
Heroin
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Heroin smuggling routes are unchanged, but South American heroin smuggling by Mexican DTOs is increasing: Most heroin available in the United States is transported into the country by two primary routes--commercial air or overland--generally depending on the type of heroin. Mexican heroin typically is transported into the United States overland through and between POEs along the Southwest Border. South American heroin typically is transported into the United States by couriers on commercial air carriers to international airports in the United States; most seizures are made at Miami International Airport and John F. Kennedy International Airport. Mexican DTOs ... transport South American heroin overland across the Southwest Border on a much smaller, but increasing, scale on behalf of Colombian DTOs. They use the same routes to transport South American heroin as they use to transport Mexico-produced methamphetamine and heroin, cocaine, and marijuana throughout the country.
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Heroin is a μ-opioid (mu-opioid) agonist. It acts on endogenous μ-opioid receptors that are spread in discrete packets throughout the brain, spinal cord and gut in almost all mammals. Heroin, along with other opioids, are agonists to four endogenous neurotransmitters. They are β-endorphin, dynorphin, leu-enkephalin, and met-enkephalin. The body responds to heroin in the brain by reducing (and sometimes stopping) production of the endogenous opioids when heroin is present. Endorphins are regularly released in the brain and nerves, attenuating pain.
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This is a blocker and stops any effect Heroin has on the user. Before Naltrexone is administered the user must be clear of Opiates and Opioids for at least 7 - 10 days. A urine test is normally carried out to ensure the body is clean. The addict must be under supervision for at least an hour to ensure there are no side effects. Naltrexone is taken in tablet form daily... counselling would be given to get the addict back into society. Most establishments offering the above treatment would do random drugs test on known addicts.
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Heroin effects manifest themselves in three different forms. Heroin effects attack the body, the mind, and the spirit. The body will begin to wither away, muscles will begin to atrophy, and the user will not be able to ingest or digest food correctly. The mind will no longer function properly; the user will no longer make clear decision. The inner peace of the heroin user will quickly slip through their fingers as they reach for more heroin. The drug that is creating their euphoric feeling as if nothing negative is happening, abuses the person as a whole.
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"Heroin" begins slowly with Lou Reed's quiet, melodic guitar and hypnotic drum patterns by Maureen Tucker, soon joined by John Cale's droning electric viola and Sterling Morrison's steady rhythm guitar. The tempo increases gradually, mimicking the high the narrator receives from the drug, until a frantic crescendo is reached, punctuated by Cale's shrieking viola and the more punctuated guitar strumming of Reed and Morrison. Tucker's drumming becomes hurried and louder. The song then slows to the original tempo, and repeats the same pattern before ending.
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Heroin was first commercially produced in Germany around the; turn of the century. Initially it was used as a substitute for the proved addictives, morphine and codeine. The drug was -assumed to be so benign that it was prescribed as an alternative to liquor for chronic alcoholics. Heroin was ... prescribed as a cough suppressant and sold over the counter in patent medicines for pain relief, and as a sleep-inducing tranquilizer. It suppresses coughs, all right, along with everything else controlled by the central nervous system. Intestinal muscles contract, causing severe, chronic constipation.
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Heroin