Drug of Abuse Flashcards
Physical
Tolerance
Withdrawal Syndrome
Non psychoactive drugs
Dependence
Psychological
Compulsion
Relapsing
Craving
Addiction
High potential for abuse, no known medical use and lacks accepted safety for use
E.g Heroin, Lysergic acid diethylamide
Schedule I
Potential for abuse with proven and accepted medical use but WITH SEVERE RESTRICTIONS, because abuse may cause severe psycho/physio dependence
E.g morphine, cocaine, methadone, methampetamine, phencyclidine
Schedule II
- Less potential for abuse than schedule I or II; with accepted medical use
- Abuse may cause moderate or low physical dependence or high psychological dependence
- Anabolic steroids, codeine and hydrocodone, with aspirin or Tylenol
Schedule III
- The drug or other substance has a low potential for abuse relative to the drugs or other substances in Schedule III
- Abuse of the drug or other substance may lead to limited physical dependence or psychological dependence relative to the drugs or other substances in Schedule III
- Valium and Xanax
Schedule IV
- The drug or other substance has a low potential for abuse relative to the drugs or other substances in Schedule IV
- Cough syrups and codeine
Schedule V
Reduction of concentration
Shorter duration of action
Pharmacokinetic Tolerance
Recruitment of Adaptor protein (β arrestin)
Desensitization
Receptor internalization
Pharmacodynamic Tolerance
Alter perception; no reward/euphoria
targets cortical and thalamic system
Nonaddictive Drug of Abuse
Hallucinogens
Dissociative anesthetics
LSD
PCP/Ketamine
Dextromethorphan
Nonaddictive Drug of Abuse
receptors of:
Opioids, Cannabinoids, GHB, LSD, Mescaline & Psilocybin
G protein coupled
receptors of:
Nicotine, Benzodiazepines, Alcohol, Ketamine & PCP Inhalants
Ionotropic receptors
receptors of:
Cocaine, Amphetamines, Ecstasy(MDMA)
Biogenic Amines
Strong analgesics
Opioids
morphine, codeine, thebaine, papaverine
Opiates
“sleep inducing”
Narcotic
affinity of mu
endorphins>enkephalins>dynorphins
affinity of delta
enkephalins>endorphins>dynorphins
affinity of kappa
dynorphins> endorphins and enkephalins
Papaver somniferum
Opium
- powerful narcotic, painkiller
- principal active ingredient is MORPHINE
Opioids
diamorphine
Heroin
an addictive drug as a white or brown powder
Heroin
half life of heroine
T1/2= 3 5 hrs, therefore several doses/ day
oxycodone is synthesized from
thebaine
oxycodone is derived from
codeine
serious interaction with MAO’s
Meperidine
attempts to illicitly produce meperidine
has resulted in MPTP which can cause
parkinsonism
increased CNS depression, particularly respiratory depression
sedative-hypnotics
increased sedation.
variable effects on respiratory depression.
accentuation of cardiovascular effects
antipsychotic agents
relative contradiction to all opioid analgesics because of the high incidence of hyperpyrexic coma
monoamine oxidase inhibitors
alcohol, barbiturates, benzodiazepines,
gamma hydroxybutyric acid (GHB)
Sedative - hypnotics
true or false: in sedatives, the longer the duration the less the withdrawal
true
rare occurrence of physiologic dependence
Benzodiazepines
weight loss, change in perception,
paresthesia, headache
“Therapeutic Dose Dependence”
used for date rape
Flunitrazepam (Rohypnol)
causes anterograde amnesia
Flunitrazepam (Rohypnol)
- GABAa receptors
- usually Short acting drugs
- eg. Secobarbital, pentobarbital Na
Barbiturates
withdrawal effects: motor agitation, anxiety, insomnia, hallucination, abnormal vital signs, seizures
Alcohol
- GABAb
- naturally found in body
- can be found in fermented drinks like guava (Psidium guajava)
- liquid ecstasy, soap, easy lay, vita G
- Georgia homeboy
Gamma Hydroxybutyric Acid
withdrawal effects include:
insomnia, anxiety, tremors, sweating
Gamma Hydroxybutyric Acid
use with alcohol can produce breathing
problems
Gamma Hydroxybutyric Acid
treatment for for Short acting and Long acting drugs
chlordiazepoxide or phenobarbital
treatment for alcohol
disulfiram, naltrexone
Cannabis sativa
Marijuana
cannabinol, tetrahydrocannabinol , cannabidiol
Cannabinoids
- antiemetic
- tolerance
- uncertain effect on fetus
- Amotivational syndrome
- diseases related to smoking
Cannabinoids
substances that cause hallucinations
Hallucinogens
LSD, PCP, Ketamine, Scopolamine are examples of what substance?
Hallucinogens
synthetic agent related to ergot alkaloids
LSD
NE, dopamine, serotonin
LSD
5 HT1a & 5 HT1c agonists
LSD
rise in body temp
Hallucinations
uterine contractions
elevated sugar levels
goosebumps
Euphoria
pupil dilation
are effects of what substance?
LSD
Psilocybe mushroom
Psilocybin
mydriasis, muscle relaxation, dizziness are effects of what substance?
Psilocybin
- anesthetic
-“special K” “vitamin dream like states, hallucination, delirium, amnesia, high BP,
depression, fatal respiratory problems
Ketamine
phenylcyclohexamine deriv.
Phencyclidine (angel dust, PCP)
veterinary anesthetic
Phencyclidine (angel dust, PCP)
antagonize NMDA
Phencyclidine (angel dust, PCP)
users tend to be violent and suicidal
Phencyclidine (angel dust, PCP)
block central muscarinic receptors
Scopolamine
dopaminergic reuptake transmitter
Cocaine
inhibit reuptake of dopamine and NE
Cocaine
half life of cocaine
t1/2= 1hr, repeated 30min
symptoms include a feeling of bugs under skin, paranoia and schizophrenia like state, exhaustion by lack of sleep and food, appetite, exhaustion, depression
cocaine
increase catecholinergic neurotransmitters
Amphetamines
dopamine not be metabolized thus released
Amphetamines
treat narcolepsy and ADHD
Amphetamines
managed by benzodiazepines
Amphetamines
related drugs (shabu, ecstasy)
Amphetamines
- “raves” designer drug
- SERT
Ecstasy
Methylene dioxymethamphetamine (MDMA)
Ecstasy
reverse the effects of fatigue on both mental and physical tasks.
Stimulants
strong psychological and physiological
dependence (more addictive than heroin
and cocaine)
Nicotine
receptors of caffeine
adenosine receptors