project: ghana emergency medicine collaborative document title: drugs of abuse author(s): tim...
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Project: Ghana Emergency Medicine Collaborative
Document Title: Drugs of Abuse
Author(s): Tim Albertson, M.D., Ph.D. (University of California- Davis); Jim Holliman, M.D., F.A.E.C.P. (Pennsylvania State University) 2012
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22
Update on Drugs of Update on Drugs of AbuseAbuse ((““some club-drug stuffsome club-drug stuff””))
Tim Albertson, M.D.,Ph.D. Tim Albertson, M.D.,Ph.D.
Professor of Medicine, Pharmacology Professor of Medicine, Pharmacology and Toxicologyand Toxicology
UC Davis School of MedicineUC Davis School of Medicine
CPCS, Sacramento DivisionCPCS, Sacramento Division
Jim Holliman, M.D.Jim Holliman, M.D.Penn State UniversityPenn State University
Bearstache, Flickr
Overview of TopicsOverview of Topics
Gamma hydroxybutyrate (GHB)Gamma hydroxybutyrate (GHB)– GHBGHB– GHB AnalogsGHB Analogs– GHB / Analog WithdrawalGHB / Analog Withdrawal
Ecstasy : MDMA (Methylene Ecstasy : MDMA (Methylene dioxymethamphetamine)dioxymethamphetamine)
Overview of TopicsOverview of Topics
MethamphetamineMethamphetamine
Dextromethorphan (DM)Dextromethorphan (DM)
KetamineKetamine
FlunitrazepamFlunitrazepam
MescalineMescaline
InhalantsInhalants
AnticholinergicsAnticholinergics
GHBGHB((GGamma-amma-
hhydroxyydroxybbutyrate)utyrate)
United States Department of Justice, Wikimedia Commons
What is GHB?What is GHB?Gamma hydroxybutyrateGamma hydroxybutyrateNaturally occurring in brain tissueNaturally occurring in brain tissue– neurotransmitter-like substanceneurotransmitter-like substance– dopamine release in substantia nigradopamine release in substantia nigra
Similar structure to GABASimilar structure to GABAGABA-B agonist effectsGABA-B agonist effectsApproved for narcolepsy 2002Approved for narcolepsy 2002– Sodium oxybate (Xyrem) Orphan MedicalSodium oxybate (Xyrem) Orphan Medical– 4.5 gms a night AWP $739 / month limited 4.5 gms a night AWP $739 / month limited
to certain pharmacies and physiciansto certain pharmacies and physicians
GHBGHBInvestigated as an anesthetic agent : Investigated as an anesthetic agent : caused myoclonus and delirium ; current caused myoclonus and delirium ; current IND for sleep apneaIND for sleep apneaCrystalline saltCrystalline saltSoluble in water and methanolSoluble in water and methanolTastelessTastelessGBL-gamma-butyrolactone & BD-1,4 GBL-gamma-butyrolactone & BD-1,4 butanediol precursor molecules convert to butanediol precursor molecules convert to GHB in-vivoGHB in-vivo
Structure Activity Structure Activity RelationshipRelationship
COOH
CH2
CH2
CH2
OH
COOH
CH2
CH2
CH2
NH2
gamma hydroxybutyrate
gamma amino butyric acid
GHB GABA
History of GHBHistory of GHB
1960’s1960’s France - Synthesized as an AnestheticFrance - Synthesized as an Anesthetic19871987 Orphan Drug (IND-narcolepsy) ; USFDAOrphan Drug (IND-narcolepsy) ; USFDA1990-11990-1 Body Builders “Undetectable steroid”Body Builders “Undetectable steroid”
Growth hormone stimulatorGrowth hormone stimulator 1992-51992-5 Sleep aid, Rave party, Popularity risesSleep aid, Rave party, Popularity rises19961996 Sexual enhancer, “Date-Rape” DrugSexual enhancer, “Date-Rape” Drug19971997 Emergence of GHB AnalogsEmergence of GHB Analogs
Emergence of Withdrawal CasesEmergence of Withdrawal Cases20002000 Federal Schedule I statusFederal Schedule I status2002 2002 FDA approval for Narcolepsy : XyremFDA approval for Narcolepsy : Xyrem
Slang Names : Slang Names : Gamma HydroxybutyrateGamma Hydroxybutyrate
Cherry methCherry meth
Easy layEasy lay
G, G capsG, G caps
Gamma hydrateGamma hydrate
Georgia home boyGeorgia home boy
GHBGHB
GH BeersGH Beers
Liquid ELiquid E
Liquid XLiquid X
Liquid ecstasyLiquid ecstasy
Natural sleep 500Natural sleep 500
Organic QuaaludeOrganic Quaalude
Oxy sleepOxy sleep
ScoopScoop
What are GHB Analogs?What are GHB Analogs?
Organic solvents Organic solvents – √√-Butyrolactone, 2(3) Dihydrofuranone,-Butyrolactone, 2(3) Dihydrofuranone,– 1,4-Butanediol, Tetramethylene Glycol1,4-Butanediol, Tetramethylene Glycol
Converted to GHB Converted to GHB in vitroin vitro or or in vivoin vivo– In vitro using NaOH, heatIn vitro using NaOH, heat– In vivo (Lactonase enzymes) : GBLIn vivo (Lactonase enzymes) : GBL– In vivo (alcohol / aldehyde In vivo (alcohol / aldehyde
dehydrogenase)dehydrogenase)
Identical clinical effects to GHBIdentical clinical effects to GHB
Conversion : Conversion : Gamma Butyrolactone (GBL)Gamma Butyrolactone (GBL)
O
=O
NaOH + H2O
Lactonasein vitro
In vivo
C OOHCH2
CH2
CH2 OH
GBL GHB
Gamma Butyrolactone Gamma Butyrolactone (GBL)(GBL)
United States Department of Justice, Wikimedia Commons
Slang Names :Slang Names : Gamma Butyrolactone or Dihydro Gamma Butyrolactone or Dihydro
FuranoneFuranone
Blue NitroBlue Nitro
FirewaterFirewater
Furanone ExtremeFuranone Extreme
Gamma GGamma G
GBLGBL
GH ReleaseGH Release
Insom-XInsom-X
InvigorateInvigorate
JoltJolt
Liquid LibidoLiquid Libido
RegenerizeRegenerize
ReneTrientReneTrient
RevivarantRevivarant
Revivarant-GRevivarant-G
Renewtrient and Blue Nitro, GHB precursors, have been removed from the market.
Source Undetermined
Slang Terms : Slang Terms : 1,4 Butanediol or Tetramethylene 1,4 Butanediol or Tetramethylene
glycolglycol
Biocopia PMBiocopia PM
BorametzBorametz
BVMBVM
EnlivenEnliven
FXFX
NRG3NRG3
Inner GInner G
Thunder NectarThunder Nectar
Pro GPro G
PromusolPromusol
Rest-ezeRest-eze
Revitalize PlusRevitalize Plus
SerenitySerenity
SomatoProSomatoPro
Incidence : GHB and Incidence : GHB and PrecursorsPrecursors
18 10 934
1937
89105
199
232
356
0
50
100
150
200
250
300
350
400
CASES
1990 1991 1992 1993 1994 1995 1996 1997 1997 1998 1999
SF POISON CONTROL CA POISON CONTROL
Source Undetermined
PathologyPathology
Structurally similar to GABAStructurally similar to GABA
Stimulates GABAStimulates GABABB receptors receptors
Influences dopamine release from Influences dopamine release from substantia nigrasubstantia nigra
Readily crosses the BB barrierReadily crosses the BB barrier
GHB / Analogs : GHB / Analogs : Clinical PresentationClinical Presentation
Vomiting, Coma, BradycardiaVomiting, Coma, Bradycardia
Myoclonic jerkingMyoclonic jerking
Loss of protective airway reflexesLoss of protective airway reflexes– Aspiration riskAspiration risk
Hypothermia, Mild respiratory acidosisHypothermia, Mild respiratory acidosis
HOTN when combined with ethanolHOTN when combined with ethanol
EffectsEffects
““DESIREDDESIRED””
EuphoriaEuphoriaMood elevationMood elevationHallucinationsHallucinationsGH-Muscle GH-Muscle growth?growth?AmnesiaAmnesia
UNDESIREDUNDESIRED
Decreased HR, Decreased HR, RRRR
ComaComa
Excessive Excessive salivationsalivation
Absence-like szAbsence-like sz’’ss
Emergency Department (ED) Course of Emergency Department (ED) Course of Gamma Hydroxybutyric Acid (GHB) Gamma Hydroxybutyric Acid (GHB)
Intoxication Study Intoxication Study Acad Emerg MedAcad Emerg Med 2002 Jul;9(7):730-9 Mason 2002 Jul;9(7):730-9 Mason
StudyStudy IntubatedIntubated Duration Duration of of
IntubationIntubation
Time in Time in ED if Not ED if Not AdmittedAdmitted
Number Number AdmittedAdmitted
Chin et al. Chin et al.
( n = 88)( n = 88)13 %13 % 179 min179 min NRNR 11 %11 %
Mahon et Mahon et al. ( n = 8)al. ( n = 8)
50 %50 % 80 min80 min NRNR 0 %0 %
Li et al.Li et al.
( n = 7)( n = 7)57 %57 % 210 min210 min 360 min360 min 43 %43 %
Garrison & Garrison & Mueller ( n Mueller ( n = 78)= 78)
10 %10 % NRNR 180 min180 min 4 %4 %
Case Study …..Case Study …..
26 y/o F with chronic insomnia doubled 26 y/o F with chronic insomnia doubled her dose of Blue Nitro (GBL) : 3 oz.her dose of Blue Nitro (GBL) : 3 oz.
– Vomiting within 15 minutesVomiting within 15 minutes
– Pt was unresponsive within 30 minutesPt was unresponsive within 30 minutes
– Myoclonic jerkingMyoclonic jerking
– EMS was calledEMS was called
– VS: BP 120 / 70, HR 50, RR 22, T 35VS: BP 120 / 70, HR 50, RR 22, T 35
Case Study continued ….Case Study continued ….
Unresponsive to pain, GCS 3.Unresponsive to pain, GCS 3.
CT scan normal, glucose 125CT scan normal, glucose 125
No response to naloxone or flumazenilNo response to naloxone or flumazenil
Woke up within 4 hoursWoke up within 4 hours
Discharged Discharged
Urine Toxicology screen negativeUrine Toxicology screen negative
GHB / Analogs : KineticsGHB / Analogs : Kinetics
OnsetOnset 15 minutes15 minutes– Immediate conversion of analogs to GHBImmediate conversion of analogs to GHB
ComaComa within 30 minuteswithin 30 minutes
PeakPeak 1 hour1 hour
T 1/2T 1/2 ShortShort
DurationDuration 1 to 6 hours (1 to 6 hours (Average 2.5 hr)Average 2.5 hr)
Most patients require < 5 hr observationMost patients require < 5 hr observation
Emergence DeliriumEmergence Delirium
Myoclonic jerking motionsMyoclonic jerking motions
Confusion, agitation, combativenessConfusion, agitation, combativeness– Transient symptoms (< 30 minutes)Transient symptoms (< 30 minutes)– Symptoms worsen with stimulationSymptoms worsen with stimulation
TreatmentTreatment– Supportive CareSupportive Care– Minimize stimulation. “Back off”Minimize stimulation. “Back off”
GHB / Analogs : DiagnosisGHB / Analogs : Diagnosis
History of use and circumstancesHistory of use and circumstances
Clinical PresentationClinical Presentation
Short Duration Short Duration
Role of LaboratoryRole of Laboratory– Suspected assaultSuspected assault– Obtain sample within 12 hoursObtain sample within 12 hours– National Medical LaboratoriesNational Medical Laboratories
GHB / Analogs : TreatmentGHB / Analogs : Treatment
Supportive CareSupportive Care– Approximately 35 % patients require Approximately 35 % patients require
airway protectionairway protection
Gastrointestinal DecontaminationGastrointestinal Decontamination– Limited ValueLimited Value– Consider Charcoal in massive ingestionsConsider Charcoal in massive ingestions
Education regarding DependenceEducation regarding Dependence
GHB Dependence : Case StudyGHB Dependence : Case Study29 year old male started taking GHB for 29 year old male started taking GHB for
the “anabolic effects” 2 yrs agothe “anabolic effects” 2 yrs ago Gradually increased dose to 4 to 6 Gradually increased dose to 4 to 6
“capfuls” every 4 hours “capfuls” every 4 hours Discontinued the GHB cold turkeyDiscontinued the GHB cold turkeyArrived in ED 24 hr after his last dose Arrived in ED 24 hr after his last dose
Case Study continued ….Case Study continued ….
– Patient was highly agitatedPatient was highly agitated
– Visual and auditory hallucinationsVisual and auditory hallucinations
– Delusional, paranoid Delusional, paranoid
– Tremulous, diaphoreticTremulous, diaphoretic
– VS: HR 110, BP 160 / 112, T 99.1VS: HR 110, BP 160 / 112, T 99.1
Case Study continued ...Case Study continued ...
Patient received :Patient received :– Ativan : 90 mg in the first 24 hoursAtivan : 90 mg in the first 24 hours– Phenobarbital, HaloperidolPhenobarbital, Haloperidol
10 day withdrawal course 10 day withdrawal course Discharged symptom and drug freeDischarged symptom and drug free
GHB WithdrawalGHB Withdrawal
Similar to ETOH and sedative-hypnotic Similar to ETOH and sedative-hypnotic withdrawal.withdrawal.
Symptoms start within a few hours of Symptoms start within a few hours of discontinuation. discontinuation.
Seen with long-term use or daily use.Seen with long-term use or daily use.
GHB Withdrawal : Clinical GHB Withdrawal : Clinical PresentationPresentation
Onset :Onset : 1 to 6 hours1 to 6 hoursProgression of sxs over 1 to 3 daysProgression of sxs over 1 to 3 daysSymptoms Symptoms
– Agitation, hallucinations, paranoiaAgitation, hallucinations, paranoia– Tremulous, diaphoreticTremulous, diaphoretic– Tachycardic, hypertensiveTachycardic, hypertensive– Hyperthermia, Rhabdomyolysis possibleHyperthermia, Rhabdomyolysis possible
Duration :Duration : 5 to 15 days5 to 15 days
GHB Withdrawal : GHB Withdrawal : ManagementManagement
AGGRESSIVE TREATMENT EARLYAGGRESSIVE TREATMENT EARLY BenzodiazepinesBenzodiazepines
High doses may be requiredHigh doses may be required
BarbituratesBarbituratesAntipsychoticsAntipsychoticsUnproven TherapyUnproven Therapy
– Baclofen (GABA-B agonist)Baclofen (GABA-B agonist)
Stimulants of AbuseStimulants of AbuseMethamphetamineMethamphetamineMethylene dioxymethamphetamine : Methylene dioxymethamphetamine :
MDMA (Ecstasy)MDMA (Ecstasy)CocaineCocaineKetamine / PCP (phencyclidine)Ketamine / PCP (phencyclidine)DextromethorphanDextromethorphan
Rave Party : Case Study ...Rave Party : Case Study ...
18 year old F was at a Rave party with a 18 year old F was at a Rave party with a friend. She was drinking ethanol and friend. She was drinking ethanol and using the following:using the following:– MidnightMidnight 1 tablet of Ecstasy1 tablet of Ecstasy– 3 am3 am Snorted 1 line of KetamineSnorted 1 line of Ketamine– 5 am5 am Drank a “capful” of GHBDrank a “capful” of GHB
At 6:30 am patient found slumped in At 6:30 am patient found slumped in bathroom, cyanotic. EMS called.bathroom, cyanotic. EMS called.
Case Study continued ….Case Study continued ….
In ED, comatose but not cyanotic. In ED, comatose but not cyanotic. Intubated for airway protection. Intubated for airway protection. No response to flumazenil or narcanNo response to flumazenil or narcanVS: HR 58, BP 110 / 60, RR 16, p VS: HR 58, BP 110 / 60, RR 16, p
5mm, T 375mm, T 37
ICU admission. Woke up at 12 hoursICU admission. Woke up at 12 hoursExtubated, dischargedExtubated, discharged
Ketamine : Clinical Ketamine : Clinical PresentationPresentation
Dissociative anestheticDissociative anestheticClinical PresentationClinical Presentation
– Separation of perception and sensationSeparation of perception and sensation– Nystagmus, hallucinations, lethargy, szNystagmus, hallucinations, lethargy, sz– tachycardia, HTN, RR depressiontachycardia, HTN, RR depression– hyperthermiahyperthermia
DurationDuration– 2 to 4 hours2 to 4 hours
Ketamine TreatmentKetamine Treatment
SupportiveSupportiveSedationSedation
Phencyclidine EffectsPhencyclidine Effects
Tremors, agitation, hallucinations : Tremors, agitation, hallucinations : visual and auditory.visual and auditory.
Tachycardia, HTN.Tachycardia, HTN.
Wernicke-Korsakoff syndrome.Wernicke-Korsakoff syndrome.
Treatment is same as for ketamine
MethamphetamineMethamphetamine
First synthesized by a Japanese First synthesized by a Japanese pharmacologist in 1893pharmacologist in 1893
Ephedrine most common precursorEphedrine most common precursorRed phosphorus-hydriotic acid most Red phosphorus-hydriotic acid most
common reduction method.common reduction method.D-isomer : CNS stimulant effects.D-isomer : CNS stimulant effects.L-isomer : peripheral sympathomimetic L-isomer : peripheral sympathomimetic
activity.activity.
StructuresStructures
PhenethylaminePhenethylamine
AmphetamineAmphetamine
MethamphetamineMethamphetamine
Source Undetermined
Source Undetermined
Source Undetermined
ProductionProduction
EphedrineEphedrine
MethamphetamineMethamphetamineSource Undetermined
Source Undetermined
PathologyPathologyIncrease release of Increase release of
neurotransmitters from nerve neurotransmitters from nerve terminals.terminals.
Serotinergic and dopaminergic ATP Serotinergic and dopaminergic ATP decrease.decrease.
5HT and D2 depletion.5HT and D2 depletion.ApoptosisApoptosisEndothelial injury.Endothelial injury. Reactive oxygen species.Reactive oxygen species.
Model of Methamphetamine Neurotoxicity
O2, H2O2, OH, NO
DNA Damage
P53
ROS
Terminal Degeneration Apoptosis
P53 Regulated GenesBax
Bcl-2
Bax/Bcl-2
Cytochrome Release
Caspase Activation
Lena Carleton, University of Michigan
Source Undetermined
Signs and SymptomsSigns and Symptoms
Action phaseAction phase
Skin pickingSkin pickingHead bangingHead bangingPacingPacingParanoid psychosisParanoid psychosisExtreme Extreme
suspiciousnesssuspiciousness
Resolution phaseResolution phase
ExhaustionExhaustionFatigueFatigueSleepSleepDepressionDepression
Other Signs and SymptomsOther Signs and Symptoms
Pulmonary hypertensionPulmonary hypertensionDyspneaDyspneaPleuritic chest painPleuritic chest painAnorexia/weight lossAnorexia/weight lossUlcersUlcersRhabdomyolysisRhabdomyolysis
TESS DATATESS DATAMethamphetamine Exposures Without Concomitants, 2001
(Cardiovascular Effects)
0
50
100
150
200
250
300
350
400
Source: American Association of Poison Control Centers Toxic Exposure Surveillance System, 2001
Methamphetamine and the EDMethamphetamine and the ED
6 months UCDMC ED ending February 19976 months UCDMC ED ending February 1997461 methamphetamine (+) patients461 methamphetamine (+) patientsCaucasian males without health insuranceCaucasian males without health insurance Increase use of ambulances and acute Increase use of ambulances and acute
hospitalizationhospitalizationSignificant association with trauma : blunt Significant association with trauma : blunt
33 % and penetrating 4 %33 % and penetrating 4 %Altered LOC (23 %), Abd pain (13 %), suicide Altered LOC (23 %), Abd pain (13 %), suicide
(8 %), chest pain (8 %), skin infections (6 %)(8 %), chest pain (8 %), skin infections (6 %)Richards, et al., Richards, et al., West J MedWest J Med 1999 ; 170:198- 1999 ; 170:198-
202202
Methamphetamine and Methamphetamine and TraumaTrauma
UCDMC Level 1 Trauma CenterUCDMC Level 1 Trauma CenterRetrospective Study 1989 to 1994Retrospective Study 1989 to 1994Results :Results :
– 18,004 pts ; 3.1 / 1000 population per year18,004 pts ; 3.1 / 1000 population per year– + methamphetamine defined as urine > + methamphetamine defined as urine >
1000 ng / ml1000 ng / ml– Rates increased from 7.4 to 13.4 %Rates increased from 7.4 to 13.4 %– Cocaine rates 5.8 to 6.2 %Cocaine rates 5.8 to 6.2 %
Methamphetamine and Methamphetamine and TraumaTrauma
Decrease in ethanol from 43 % to 35 %Decrease in ethanol from 43 % to 35 %Meth (+) most common in Caucasian or Meth (+) most common in Caucasian or
HispanicHispanicCocaine (+) most common African AmericanCocaine (+) most common African AmericanMeth (+) in MVA or MCAMeth (+) in MVA or MCA’’ssCocaine (+) in assaults, GSWCocaine (+) in assaults, GSW’’s or stab s or stab
woundswounds
Schermer and Wisner, Schermer and Wisner, J Am Coll SurgJ Am Coll Surg 1999; 189: 1999; 189: 442-449442-449
TreatmentTreatment DonDon’’t forget to r/o other causes :t forget to r/o other causes :
– Look-alike diseases : e.g. Pheo, scorpion Look-alike diseases : e.g. Pheo, scorpion bites.bites.
– Drugs : e.g. LSD, psilocybin-hallucinations, Drugs : e.g. LSD, psilocybin-hallucinations, etc.etc.
– Elevated temperature : e.g. malignant Elevated temperature : e.g. malignant hyperthermia, NMS, anticholinergic hyperthermia, NMS, anticholinergic syndrome.syndrome.
– Seizures : e.g. cocaine, ETOH withdrawal.Seizures : e.g. cocaine, ETOH withdrawal.– CVS : e.g. GHB withdrawal.CVS : e.g. GHB withdrawal.
Treatment (cont.)Treatment (cont.)
Control stimulant effectsControl stimulant effectsDecontaminationDecontaminationControl hyperthermia : how ?Control hyperthermia : how ?Control seizures : how ?Control seizures : how ?Be careful of physical restraints.Be careful of physical restraints.Treat psychiatric conditions.Treat psychiatric conditions.
What is Ecstasy (MDMA) ?What is Ecstasy (MDMA) ?
3,4-Methylenedioxymethamphetamine3,4-MethylenedioxymethamphetamineSympathetic effects mild in low dosesSympathetic effects mild in low doses Potent releaser of serotoninPotent releaser of serotonin OverdoseOverdose
– Symptoms similar to amphetaminesSymptoms similar to amphetamines– Risk of serotonin syndromeRisk of serotonin syndrome– Risk of hyponatremia Risk of hyponatremia
SIADH and / or increased water intakeSIADH and / or increased water intake
MDMAMDMA
Source Undetermined
Drug Enforcement Agency, Wikimedia Commons
History of EcstasyHistory of Ecstasy
19141914 Patented as Appetite suppressantPatented as Appetite suppressant Never MarketedNever Marketed
1970’s1970’s Use by psychiatristsUse by psychiatrists1980’s1980’s “LSD of the 60’s” “LSD of the 60’s” 1990’s1990’s Increasing abuse, Rave party useIncreasing abuse, Rave party use20002000 Continuing abuseContinuing abuse Illicit adulterants commonIllicit adulterants common
Illicit Ecstasy TabletsIllicit Ecstasy Tablets
Drug Enforcement Agency, Wikimedia Commons
PathologyPathology
Similar to other amphetamines in Similar to other amphetamines in causing release of catecholamines.causing release of catecholamines.
Alpha and beta-adrenergic agonist.Alpha and beta-adrenergic agonist.Can cause SIADH by an unclear Can cause SIADH by an unclear
mechanism.mechanism.
EffectsEffects
DESIREDDESIRED
Increased energyIncreased energyEuphoriaEuphoriaEmpathyEmpathyVisual Visual
hallucinationshallucinations
UNDESIREDUNDESIRED
Jaw clenchingJaw clenchingParanoiaParanoiaHot / cold flashesHot / cold flashesHyperpyrexiaHyperpyrexiaSeizuresSeizures
Clinical Signs and SymptomsClinical Signs and Symptoms
RhabdomyolysisRhabdomyolysisHyponatremiaHyponatremiaDICDICRenal failureRenal failureHepatotoxicityHepatotoxicityAplastic anemia : rareAplastic anemia : rare
Illicit MDMA AdulterantsIllicit MDMA Adulterants
Assayed tablets have contained :Assayed tablets have contained :– MDMAMDMA– MDMA with CaffeineMDMA with Caffeine– Dextromethorphan 122 to 143 mg / tabletDextromethorphan 122 to 143 mg / tablet– CaffeineCaffeine– Ephedrine, Pseudoephedrine, PPAEphedrine, Pseudoephedrine, PPA– PlaceboPlacebo
TreatmentTreatment
Similar to amphetamines and Similar to amphetamines and derivativesderivatives
Controlling cerebral edema from Controlling cerebral edema from hyponatremia important.hyponatremia important.
Pneumomediastinum also an issuePneumomediastinum also an issueControlling hyperthermia predicts Controlling hyperthermia predicts
survival in several studiessurvival in several studies
Dextromethorphan : Case Dextromethorphan : Case Study …..Study …..
14 year old M ingested 30 Coricidin 14 year old M ingested 30 Coricidin tablets to get high. At 2.5 hours : tablets to get high. At 2.5 hours : – Lethargic, slurred speechLethargic, slurred speech, , hallucinatinghallucinating
– Flushed , tremulousFlushed , tremulous
– Nystagmus presentNystagmus present
– VS : HR 114, BP 170 / 100, T 97.8, p 7mmVS : HR 114, BP 170 / 100, T 97.8, p 7mm
Dextromethorphan (DXMF) Dextromethorphan (DXMF) AbuseAbuse
Many DXMF containing OTC productsMany DXMF containing OTC productsCoricidin : many combinationsCoricidin : many combinations
– DXMF 30 mg, CTM, APAP, PPA, etc.DXMF 30 mg, CTM, APAP, PPA, etc.
Teenage DXMF abuse is rising Teenage DXMF abuse is rising Easy OTC availability Easy OTC availability
DextromethorphanDextromethorphan
Therapeutic doses : mild CNS effectsTherapeutic doses : mild CNS effectsHigh doses : significant CNS effectsHigh doses : significant CNS effectsSpecific DXMF receptors (opiate - sigma)Specific DXMF receptors (opiate - sigma)
Anticholinergic-like symptomsAnticholinergic-like symptomsHallucinations, delusion, dysphoriaHallucinations, delusion, dysphoria
Opiate kappa and mu receptorsOpiate kappa and mu receptorsOpiate effectsOpiate effects
Dextromethorphan : Dextromethorphan : TreatmentTreatment
Gastrointestinal decontaminationGastrointestinal decontaminationNarcan may be usefulNarcan may be usefulSupportive CareSupportive CareLaboratoryLaboratory
– Rule out aspirin and acetaminophenRule out aspirin and acetaminophen
MescalineMescaline
Source Undetermined
CharacteristicsCharacteristics
Derived from peyote cactus.Derived from peyote cactus.
Hallucinogen.Hallucinogen.
Can mimic an acute gastroenteritisCan mimic an acute gastroenteritis
Mescaline TreatmentMescaline Treatment
SupportiveSupportive
FlunitrazepamFlunitrazepam
Used throughout Europe.Used throughout Europe.Not approved in the US.Not approved in the US.One of the One of the ““date-rapedate-rape”” drugs. drugs.By weight 10x more potent than By weight 10x more potent than
diazepam.diazepam.Produces effects within 15 mins.Produces effects within 15 mins.
Flunitrazepam tabletsFlunitrazepam tablets
New Rohypnol tablets include a dye that make the drug visible if slipped into a drink
Drug Enforcement Agency, Wikimedia Commons
PathologyPathology
A benzodiazapine working on the A benzodiazapine working on the GABAGABAAA receptor. receptor.
Lipid soluble rapidly crossing the BB Lipid soluble rapidly crossing the BB barrier.barrier.
EffectsEffects
““DESIREDDESIRED””
EuphoriaEuphoriaHallucinationsHallucinationsDisinhibitionDisinhibitionSM relaxationSM relaxationSedationSedationMemory impairmentMemory impairment
UNDESIREDUNDESIRED
HypotensionHypotensionDrowsinessDrowsinessApneaApneaUrinary retentionUrinary retentionTremorsTremors
TreatmentTreatment
Supportive care.Supportive care.
AC, lavage (use with caution, may be AC, lavage (use with caution, may be contraindicated)contraindicated)
Benzodiazepine antagonists Benzodiazepine antagonists (flumazenil) :(flumazenil) :
NONO!!!! (very few indications). (very few indications).
Inhalant AbuseInhalant Abuse
Freon PropellantsFreon PropellantsXylene, TolueneXylene, TolueneGasoline FumesGasoline Fumes
United States Department of Defense, Wikimedia Commons
Anticholinergic AbuseAnticholinergic Abuse
AntihistaminesAntihistaminesJimson WeedJimson WeedAnticholinergic Syndrome:Anticholinergic Syndrome:
– Mad as a hatterMad as a hatter– Blind as a batBlind as a bat– Hot as HadesHot as Hades– Dry as a boneDry as a bone– Red as a beetRed as a beet
SummarySummary
GHB / GHB AnalogsGHB / GHB Analogs– Classic Symptoms in OverdoseClassic Symptoms in Overdose– Withdrawal SymptomsWithdrawal Symptoms
Rave PartiesRave Parties– Multiple drugs commonly usedMultiple drugs commonly used
Rising OTC Dextromethorphan UseRising OTC Dextromethorphan Use– Rule out aspirin and acetaminophenRule out aspirin and acetaminophen
SummarySummary
Methamphetamine is a major problemMethamphetamine is a major problemOlder drugs of abuse have not gone Older drugs of abuse have not gone
awayaway– PCPPCP– LSDLSD– HeroinHeroin– CocaineCocaine– EthanolEthanol– MarijuanaMarijuana