ucla brain institute outreach adrina kocharian and rachel oseas
DESCRIPTION
Prescribed opiates bind receptors reduced pain signaling to brain pain relief Faster relief than over-the counter Some uses Labor Post- operation Traumatic injuryTRANSCRIPT
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Prescription OpiatesUCLA Brain Institute Outreach
Adrina Kocharian and Rachel Oseas
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Background on Opiates Opiates
derived from poppy Some types of Opiates
Heroin Morphine Codeine
Uses Some are medically
prescribed as a long-term pain killer
Some are non-medically used as a drug to get high
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Background on Prescribed Opiates Prescribed opiates bind receptors
reduced pain signaling to brain pain relief
Faster relief than over-the counter
Some uses Labor Post- operation Traumatic injury
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Background on Oxycodone Discovered in 1916 in
Germany Some drugs with
Oxycodone you may have heard of OxyContin Percocet
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Legality Oxycodone is currently legal
in the U.S. However it is intended to be
controlled Schedule II
So what’s the problem? Prescription drug use epidemic Easy access relative to other
drugs Doctor’s ability to
overprescribe until 2010
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Misuse and Abuse The majority of oxycodone abusers get
their drug from relatives or friends Doctors would sell and overprescribe drugs In 2010, enactment of the Prescription
Drug Monitoring Program Led Florida oxycodone purchases to decline
97%
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So what if you’re prescribed oxy? If you’re prescribed oxycodone after
surgery, are you at risk of becoming addicted? Possibly. Tolerance increasing doses Abrupt cessation withdrawal
symptoms Hypersensitivity to pain relapse
So it’s important to gradually lessen the dose as the pain lessens
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Acute Effects
Therapeutic/ Direct Effects Euphoria Analgesia Full body relaxation
Side Effects Constipation Respiratory Depression Confusion Fast or slow heart beat
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Pharmacokinetics Administration
Orally (pill)▪ Regular ▪ Extended release
Nasally (snorting) Intravenously
(injecting) Rectally (uhh?)
Metabolism Liver converts
oxycodone to oxymorphone
Oxycodone Oxymorphone
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Mechanism of Action
Inhibitory GABA
dopamine
NO DOPAMINE IN SYNAPSE
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Mechanism of Action
Inhibitory GABA
Oxymorphone
Dopamine
DOPAMINE IN SYNAPSE
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Effects of withdrawal
Withdrawal is extremely painful though not fatal. • Feeling horrible physical and
psychological pain• Anxiety• Increased sensitivity to pain• Diarrhea• Runny nose
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Treatment
Antagonist Therapy Overdoses are
treated with a drug called Naloxone which blocks the receptor to which oxymorphone binds
Later, patients are maintained with Naltrexone
OpioidReceptor
N
N
N
N
N
N
Pre-Synaptic Neuron
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Treatment Subsitution Therapy
Given a medication that binds to the same receptor but induces a milder effect▪ Methadone ▪ Buprenorphine
So it’s less harmful and reduces horrible withdrawal
OpioidReceptor
B
B
B
B
B
B
B = buprenorphine
Pre-Synaptic Neuron