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69 Cards in this Set
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The two main groups of sedative-hypnotics are
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benzodiazepines and the barbiturates
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sedative-hypnotic drugs are prescribed to
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to control neurotic reactions in unstable patients, to
control anxiety, hypertension (high blood pressure), reduce seizure activity, and to induce sleep. |
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sedative-hypnotic drugs effects
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similar to those of alcohol
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sedatives
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produce a calming effect on mood, and behavior and are often perscribed for anxiety
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hypnotics
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are short acting drugs that are used to induce sleep their name comes from
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a sleep like state |
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sedatives hypnotics drugs bind
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to the receptors on the neurotransmitter GABA and enhance the receptors response to GABA. GABA is sometimes called
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the brains natural or endogenous, sedative. they play an important role in the brain to prevent regions from becoming over excited |
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ancient civilations
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used alcohol and opiums to calm and control the mind
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Bromides
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introduced in the 1850s but slow metabolism meant that toxins could build up in the body
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choral hydrate
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1969 could give a sailor a mickey finn
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peraldehyde
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used to control alcohol withdrawls but has offensive odor
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barbiturates first developed at the end of the 19th century medical use
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peaked in the 1940s and 1950s, during the 1960s and 70s they
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were abused but their low margin of safety and high addiction potential |
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examples of barbiturates
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phenobarbital, seconal, meprobamate (milton), chlordiazepoxide (librium),
diazepam (valium) |
phenobarbital- a slow acting drug whose effects can last for 12-24 hours used to reduce seizure activity in patients with epilepsy Seconal-short acting compounds (3-6) hours a favorite party drug for those who liked downer Meprobamate-mothers little helper, replaced by the benzodiazepines chlordiazepoxide and diazepam-first widely manufactured benzodiazepines were considered miracle drugs due to safety and lack of addicting qualities, by 1975 100 million perscriptions were written per year |
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medically, benzodiazepines are used to treat
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1. symptoms of anxiety and panic disorders
2. anxiety in surgical patients 3. sleep disorders 4. spasms ans seizures 5. acute alcohol withdrawl symptoms |
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most widely perscribed benzodiazepines
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1. alprazolam (xanax)
2. lorazipam (activan) 3. clonazepam (klonopin) 4. diazepam (valium) 5. temazepam (restoril) |
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nonmedical use of benzodiazepines
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used because effects are similar to alcohol so can be abused for same reasons as alcohol. Often abused with
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alcohol or stimulant users use them to comedown from excess stimulation |
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tolerance of benzodiazepines
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develops as the liver becomes more efficient at processing them, elderly patients the liver does not process the drug as quickly and can lead to over stimulation
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tissue of benzodiazepines
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can develop if a patient takes 10-20 times the normal dosage daily for a couple of months, or if taken normal dosage for a year or more, to avoid withdrawls
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a physician will slowly reduce the patients dosage over a period of time |
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downers (depressents)
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depress functioning of the Central nervous system
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physical and mental effects of downers
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physical-sedation, muscle relaxation, drowsiness, coma if dose is high enough
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mental effects of downers- disinhibition of of impulses and emotions, europhia due to reduction of anxiety, and emotional distress |
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three major classes of downers
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opiats/opioids, sedatives-hypnotics, alcohol
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opiats and opium
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are drugs refined from raw opium which is the milky fluid of the unripe seed pod,
the opium poppy |
(papavear somniferum) and the major opiates are, morphine and codeine |
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semi- synthetic opiates
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are chemical variations of morphine and codeine they include
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diacetylmorphine (Heroin) hydrocodone (vicodin) oxycodone (oxycontin) hydromorphone (dilaudid) |
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opiods
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are fully synthetic drugs and include
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methadone (dolophine) meperidine (demoral) propoxyphine (darvon) fentanyl (sublimaze) |
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the opium poppy was first cultivated in
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ancient mesopotamia, egypt, and greece around around 3400 B.C. plant was used as a
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cureall medicine, a source of pleasure, and a poison |
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oral ingestion of opium
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opium was originally chewed, eaten, or mixed with a drink and swallowed to induce drowsiness and cure illness
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smoking opium
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in the 16th century explorers and traders introduced the pipe to europe and asia and use became widespred most in china. this led to
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china blockading its ports from english trading ships selling opium. this period of time was known as the opium wars (1939-1842 and 1856-1860) railroads brought it to the us |
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refinement of morphine, codeine, and heroin
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in 1805 morphine was isolated from opium, and in 1874 chemists altered the morphine molecule to make heroin
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diactetylomorphine is more fat soluble than morphine which causes it to move across the blood brain barrier faster |
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injection of morphine, codeine, and heroin
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the development of the hypodermic needle in 1853 made morphines even more potent and more addicting
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patent medicines of morphine, codeine, and heroin
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in the 1800's hundreds of opium laced tonics were available. the overmedication by doctors and the popularity of the drug
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raised addiction rates dramatically |
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snorting
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if heroin is sufficiently pure, users can get high by snorting it. today over half of all heroin addicts get started their habits by this method
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20th century and government regulation of heroin
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became illegal in the 1900s by which acts
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food and drug act-1906 harrison narcotics act- 1914 |
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when laws increased for heroin
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prison population boomed and supplies dwindled to take place
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criminal organizations stepped in to take control of growing, processing and distributing |
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how many use heroin in the world
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5-10 million heroin users
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how much does the us consume
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3 percent, how much did afghanistan produce
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grew 92% or world opium which is produced into heroin |
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other significant growers of opium
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the golden triangle
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myanmar, thailand, and laos |
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most of u.s supply comes from
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columbia and mexico
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reasons doctors perscibe opioid drugs
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to deaden pain, contol coughing, and to stop diarrhea
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substance p
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is the neurotransmitter released by neuronsin spinal cord pathways to signal tissue damage.during a intense pain
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specific neurons release endorphines and enkephalins, that block the release of substance p and dampen pain sensation. |
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endorphines and enkephalins are sometimes called
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our brains natural painkiller
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opiate and opioids are able to bind to
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and activate endorphin receptors, and thus mimics our brains natural pain reaction
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in fact these drugs can completely block severe pain such as a burn or major abdomial surgrey |
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endorphines also dampen another pain
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mental pain such as fear and anxiety, and to produce a calm, detached mood.
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opioid drugs can produce a feeling of being completely dissattached from emotions |
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opioid druga increase the activity in the brains
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reward/pleasure pathway which can produce a state of euphoria this can be detrimental to people at risk of addiction
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cough suppression of opioids
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bind the receptors in the brain whose function is to control the cough reflex
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control of diarrhea
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opioid drugs reduce gastric secretions and slow contractions of smooth muscles lining the intestines so that life threatening fluids is reduced
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side effects of opioids drugs
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physical side effects include constipation, pupil constriction, drooping eyelids, relaxed muscle tone, dry itchy skin, vomiting
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tolerance of opioids
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people seeking mental effectssuch as euphoria may need 10 times their original useage after a month of use
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withdrawl
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occurs when someone stops taking drugs. and they suffer from mental and physical side effects.
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opioid withdrawl symptoms
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fever chills and goosebumps
intestinal cramping and diarrhea bone and joint pain muscle cramps insomnia and intense craving |
they are produced quickly and around 8-10 hours after last dose and peek within 48 hours |
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neonatal effects of heroin
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it easily crosses the plecenta barrier so the fetus is exposed to the same level as the mom
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pregnant addicts have a higher risk of miscarraige, plecental seperation, premature labor and still births. |
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overdose on heroin
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each year 4000 to 5000 people die from opioids or combination of depressents
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severe respiratory depression is the major cause of overdose death with opioids. |
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symptoms of an opioid overdose
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blue lips and pale or blueish skin
Slow shallow breaths with fluid rattles or gasps Very constricted pupils that look like pin pricks Skin feels cold and clammy |
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to combat an opioid overdose
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Immediate CPR is needed, and, if possible, an injection of an opioid receptor
antagonist such as naloxon (Narcan). |
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what are risks of injecting opioids
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Dirty and shared needles. Heroin users can unknowingly inject adulterants, bacteria, and
viruses, including those that cause hepatitis B or C, endocarditus, flesh-eating bacteria, and HIV, virus that causes AIDS. |
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what percentage of needle sharing opioid users have hep. c and aids
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50-90% carry hep. c and over half of IV drug users carry HIV which can spread to their sexual partners.
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dilution of street opioid
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Street drugs can vary from 0 to 99% pure. Heroin is always cut or stepped on
with adulterates (cheap substitutes used to replace the drug). |
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what is the cost of opioids and how do users pay for it
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A majority (79%) of heroin users has full-time jobs but a habit can grow from $20 to
$200 dollars a day. t is estimated that 60% of the cost is covered by prostitution and drug dealing and 40% by shoplifting and burglary. |
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heroin
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diacetylmorphine
Largest sources of illegal opium and heroin are Afghanistan and the Golden Triangle (Burma, Northern Thailand and Laos). India is the largest grower of opium for legal medical purposes. Types of heroin include "China White" and “Persian brown". Since the 40's, Mexico has been largest supplier to U.S. of “black tar" heroin which is often smoked. |
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Codeine
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is not as strong as morphine, and generally used for relief of moderate pain or to
control coughs. |
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Morphine
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refined from opium and is the standard for pain relief measurement
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Methadone
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(Dolophine)-A long-lasting opioid which is taken orally to reduce
heroin craving and reduce withdrawal symptoms |
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Hydromorphone
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(Dilaudid) A semi-synthetic opioid refined from morphine. It
is 8 times more potent than morphine |
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Oxycodone
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(Oxycontin) A time release form of oxycodone.
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Hydrocodone (Vicodin)
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Today it is the most abused oral pain reliever
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Meperidine
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(Demerol) A short-acting opioid, usually injected
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Propoxyphene
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(Darvon) An opioid prescribed for mild to moderate pain, especially
by dentists |
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Fentanyl
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(Sublimaze) The most powerful pain killer available (50 to 100 times
stronger than morphine) |
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Designer heroin
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Street versions of fentanyl, known as "China white," are made
without controls and can be very dangerous. |
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LAAM
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An opioid being tested for heroin replacement therapy
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Naloxone and Naltrexone
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Opioid receptor antagonists which block the effects of
opioids and can be used to reverse a heroin overdose or discourage relapse. |