t o d a y h ir th utah poison control center · 1 by josh wiley, pharmd candidate introduction...
TRANSCRIPT
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by Josh Wiley, PharmD Candidate
Introduction Ecstasy(3,4-methylene-dioxymethamphetamine,MDMA)hasthreepropertiesthatmakeitunlikeanyotherrecreationaldrugofabuse.Itcontainsstimulatorypropertiesofamphetamines,hallucinogenicpropertiesofmescaline,andlimitedanxiolyticproperties.MDMAhasbecomeknownasthe“lovedrug”andalsogoesbyotherstreetnames,whichinclude:“XTC,”“Adam,”“M&M,”or“E.”Itispopularat“raves”andistakenforitsmood-enhancingproperties.Accordingtothe2003NationalSurveyofDrugUseandHealth(NSDUH),2.1millionAmericansaged12andolderhavetriedMDMA.Theriskofdeathforfirst-timeusershasbeenestimatedtobebetween1in2000to1in5000.1MDMAtabletscancontainmultipleadulterants,includingdextromethorphan,amphetamine,methamphetamine,ketamine,caffeine,andacetaminophen.1
Pharmacology/ Kinetics
MDMAcausesthereleaseofseveralneurotransmitters,primarilyserotonin(5HT),butalsodopamine(DA),andnorepinephrine(NE).Itinhibitsthereuptakeofserotoninandhasthepotential,withchronicuse,todestroyserotoninnerveterminals.Theseneurotransmittersareinvolvedinmoodregulation,thermoregulation,sleepcontrol,appetite,reward,andtheautonomicnervoussystem. MDMAisusuallyformulatedasatabletfor
ingestion,althoughitcanbesnorted,smoked,orinjected.Serumhalf-livesgenerallyrangefrom7to10hoursinacidurineto16to31hoursinalkalineurine.2Thetypicalhalf-lifeis8hoursandatypical“high”lasts3to5hours.
Adverse Effects Adverseeffectsincludejawclenching,lossofappetite,trismus,bruxism,nausea,drymouth,confusion,sweating,headache,fatigue,insomnia,constantrestlessmovementsofthelegsandmuscleaches.Majoradverseeffectsincludehypertension,tachycardia, (cont. on pg. 2)
Official Newsletter of the Utah Poison Control Center
I n t h I s I s s U E
Ecstasy
tramadol
Mushrooms
Outreach Education
Meet the UPCC staff: Dr. Martin Caravati
TOXICOLOGYTODAY A program of the University of Utah College of Pharmacy
t O D A Y The University of UtahThe University of UtahUtah Poison Control Center
2007 • VOlUME 9 • IssUE 4
ECsTAsY
Source:NationalInstituteofDrugAbuse
TrAmADOLby Tung Vu, PharmD Candidate
Tramadolisacentrally-actinganalgesicavailableintheUSfororaladministrationasanimmediateandextended-releasetabletandincombinationwithacetaminophen.Itisacodeineanalogthathasweakaffinityformu-opioidreceptorsandalsoinhibitsreuptakeforserotonin(5-HT)andnorepinephrine(NE).Themostcommonadverseeffectsassociatedwithtramadolincludedizziness,drowsiness,headache,vertigo,constipation,andnausea.ItismetabolizedintheliverbyCYP2D6and3A4andincreasedadverseeffectsmaybeseenwithpatientsonothermedicationsthatinhibittheactivityoftheseenzymes.Becausetramadolinhibitsthe
uptakeofserotonin,serotoninsyndromeisapossibilityespeciallyincombinationwithotherserotonergicmedications. Toxicityassociatedwithtramadolisadirectextensionofitspharmacologicaction.Intwomulti-centerstudiesoftramadolexposuresreportedtopoisoncontrolcenters,themostcommonclinicaleffectsreportedwereCNSdepression,nauseaandvomiting,tachycardiaandseizures.1,2Respiratorydepressionoccurredrarely.Inonecaseseriesinvolving87reports,seizuresoccurredin7(8%)casesand6/7patientsexperiencedasingleseizurethatwasbriefandself-limiting.2Theotherpatienthadtwowitnessedseizures.Inasecondseries26of190tramadolexposuresreportedtoastate-widepoisoncenternetworkseized,80%hadasingleseizure,(cont. on pg. 3)
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(cont. from pg. 1) Ecstasy
QTprolongation,psychosis,panicattacks,malignanthyperthermia,seizures,cerebralhemorrhage,hepatitis,rhabdomyolysis,disseminatedintravascularcoagulation,andacuterenalfailure.3 Hypertensionandtachycardiaareduetoexcesssympathomimeticeffects,primarilyfromnorepinephrine.Inavolunteerhumanstudy,MDMAincreasedsystolicbloodpressure40mmHgandtheheartrateby30beatsperminute.3
Clinical toxicology/ toxicokinetics MDMAisadrugcommonlyassociatedwiththeclubscene.EnvironmentalfactorsthatmayconfoundormagnifytoxicityofMDMAincludeambienttemperatureandphysicalexertion.Dancinginpoorlyventilatedareascanleadtoincreaedbodytemperature,excessivefluidlossandincreasedmuscleactivity. Recreationaldosesareusually50-100mgorally(1.5mg/kg).2MDMAcanleadtoconfusion,delirium,hyponatremia,hyperthermia,cardiovascularcomplications,seizures,rhabdomyolysis,hepatotoxicityandmultisystemorganfailure.Hepatotoxicitymaybeanisolatedfindingorassociatedwithhyperpyrexia.Itcanoccureitherafteranacutesingleoverdoseorwithchronicuse.Dilutionalhyponatremiacanresultfromwaterintoxicationduetodrinking
largevolumesofwaterorcarbonatedbeveragesinordertopreventdehydration.Clubshavebeenencouragedtoprovide“chillout”areaswithdrinkingwateravailable.1MDMAcanalsocauseSIADH,whichcanresultinhyponatremia.Serumsodiumconcentrationsaslowas115mEq/Lhavebeenreported.2Womenappeartobeatfour-foldincreasedriskofhyponatremiaandcoma.4 Thedurationandmagnitudeofhyperthermiaarepredictorsofmortalityrisk.Mortalityishighwhenthepeakcoretemperatureexceeds42°C.1Hyperthermiacanalsocausecomplicationssuchasrhabdomyolysis,impairedconsciousness,seizures,disseminatedintravascularcoagulation,andmulti-organsystemfailure.Individualswithpreexistinghypertensionorothercardiaccomplicationsareatincreasedriskofsuddendeath.1
treatment ObserveacutelyintoxicatedpatientintheEDforatleast4hours.Considerobtainingserumelectrolytes,creatinine,liverfunction,creatinekinaseandanelectrocardiograminsymptomaticpatients.Supportivecarewithsimplecoolingmethodsisthemainstayoftherapyforhyperthermia.Hyperthermiaassociatedwithseveremusclerigiditycanbetreatedwiththeskeletalmusclerelaxantdantrolene.1 Hypertension,tachycardia,seizuresandagitationshouldbeinitiallytreatedwithbenzodiazepines.Ifseverehypertensionandtachycardiapersists,the
combinationofabetablockerandavasodilator,suchasnitroglycerinornitroprusside,shouldbeused.Theuseofbetablockersalonecanresultinworseninghypertensionduetounopposedalphaadrenergiceffectsandvasoconstriction. Hyponatremiaisgenerallymanagedwithfluidrestriction.Inseverecases,hypertonicsalinecanbeused.Cautionisrequiredwhencorrectinghyponatremia;iftheserumsodiumiscorrectedtoorapidly,osmoticdemyelinationsyndromecanoccur.
TOXICOLOGYTODAY A publication for Health Professionals.
sEnIOrmEDICATIOnsAfETYPrOGrAm
O U t r E A C h E D U C A t I O n
MartyMalheiro,theUtahPoisonControlCenter(UPCC)outreacheducatorwaspartofateamthatdevelopedanationalpoisonpreventioneducationprogramaimedatolderadults.Theprogram,basedontheHealthBeliefModeltheory,addressedpoisonpreventionandmedicationmisuse.Pilottestedwith100olderadults,theevaluationshowedtheprogramwassuccessfulinraisingawarenessandchangingbehaviorregardingthepotentialadverseconsequencesassociatedwithmedicationmisuseanddruginteractions.Twoofthemostpositivefindingsincluded:
asignificantincreaseinknowledgewiththequestion,“Youneedtotellyourdoctoraboutvitaminsyouaretaking.”asignificantchangeinattituderelatedtothequestion,“Youcontrolyourmedicinesandhowtheyshouldbecombined.”
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Onemonthafterthetraining,99%ofparticipantsrememberedtheprogramand20%hadmodifiedtheirmedicinetakinghabits.Foradditionalinformationaboutthestudy,contactMartyMalheiroat801/587-0603.
Checkoutourwebsiteformorepoisonpreventioninformationat
www.utahpoisoncontrol.org
referencesHallAP,HenryJA.Acutetoxiceffectsof“Ecstasy”(MDMA)andrelatedcompounds:overviewofpathophysiologyandclinicalmanage-ment.BJA2006;96(6):678-685.
ShannonM.Methylenedioxy-methamphetamine(MDMA,“Ectsasy).PedEmergCare2000;16(5):377-380.
MasM,etal.CardiovascularandNeuroendocrineEffectsandPharmacokineticsof3,4-MethylenedioxymethamphetamineinHumans.JPharmacolandExpTher1999;290(1):136-145.
RosensonJ,SmollinC,SporerKA,BlancP,OlsonKR.Patternsofecstasy-associatedhyponatremiainCalifornia.AnnEmergMed2007;49(2):164-71.
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Markyourcalendars.TheUPCCbiennialPoisonControlUpdateConferencewillbeheldinSaltLakeCityonMay29thandinRichfieldonJune5th,2008.Thisconferenceisdesignedforpublichealthadvocates,suchasnurses,healtheducators,pharmacists,andotherpublicsafetyprofessionals.Someofthetopicstobecoveredattheconferenceincludepoisoningsinvolvinglead,arsenic,caffeine,handsanitizers,aswellascurrenttrendsinprescriptiondrugabuse.TheconferencebrochurewillbemailedoutinJanuary2008andwillbeavailableonourwebsite.
bIEnnIALUPDATECOnfErEnCE
Mushroompoisoningsareincreasingworldwidesecondarytothegrowingpopularityofpickingwildmushroomsforfoodorfortheirpsychedelicproperties.1Unfortunately,differentiatingpoisonousmushroomsfromedibletypesisquitedifficult,evenforexperts.Manytypesoftoxins,andthereforetoxidromes,areassociatedwithpoisonousmushroomsmakingthediagnosischallenging.Inaddition,growthconditions,decay,ingestionamountandindividualsusceptibilitiescanaffecthowsymptomaticpatientsbecome.Mostcommonly,patientsdevelopself-limitednausea,vomitingandabdominalpainfollowingingestion.However,certainspecies,suchasAmanitaphalloides,arehighlypoisonousandcanbefatal.Somemushroomtoxinshavedelayedeffects,causingsymptomsdaysfollowingingestion.Diazsuggestedaclassificationsystembasedononsetofsymptomsandtargetorgansforidentificationanddiagnosis:Early-onset(<6hrs):neurotoxic,allergicandgastrointestinal;Late-Onset(6-24hrs):hepatotoxic,nephrotoxicanderythromelalgia;andDelayed-Onset(>1day):nephrotoxic,rhabdomyolyticandneurotoxic.Subgroupswithspecificmushroomspeciesarelistedforeachtoxidrome.1Anypatientwithsymptomsdeveloping6ormorehoursafteringestionshouldbeseenintheemergencydepartment.WhitemushroomcapswithwhitegillsareconcerningforthehighlypoisonousAmanitaphalloidesandshouldbeevaluatedforlivertoxicity.Ifpossible,themushroomoritsspores,whichmaybeobtainedfromgastriclavage,shouldbeidentifiedbyamycologist.Treatmentincludesgastricdecontaminationwithlavageandactivatedcharcoalandsupportivecare.Patientspresentingwithsignsofhepaticorrenalfailureshouldbetransferredtoafacilitycapableofperforminghemodialysisandlivertransplantation.CasereportsofhepaticfailurefromAmanitasp.thatimprovedwithN-acetylcysteine,benzylpenicillin,silibinin(anextractofmilkthistle)andcimetidinehavenotbeensupported
bycontrolledresearch.2Obtainingliverfunctiontests,renalfunctionpanelandcreatininekinaseforupto2weekscanhelptorule-outpathologyinpatientswhomayhaveingestedmushroomsassociatedwithdelayed-onsettoxins.TheUtahPoisonControlCenterisavailabletohelpwithmushroomidentification,evaluationandtreatmentrecommendations.
(cont. from pg. 1) Tramadol
3.8%hadtwoseizuresand11.5%ofpatientshadmultipleseizures.1Inthisseries,almostallpatientshadaseizurewithin6hoursoftheingestionwiththemajorityofpatientsseizingwithin2hoursoftheingestion.1Seizureswerereportedmorefrequentlyinagroupofdrugandtramadolabusers.3Thetreatmentofatramadoloverdoseisprimarilysupportive.Activatedcharcoalmaybeconsideredforpatientsthatpresentwithin1-2hoursafteringestion.Naloxonemaybeeffectiveinreversingrespiratorydepression.Benzodiazepinesareindicatedforthetreatmentofseizures.Naloxoneisnoteffectiveintreatingtramadol-inducedseizures.Patientsshouldbemonitoredforaminimumof6hoursandpossiblylongerfollowingingestionoftheextended-releasepreparation.Anacetaminophenconcentrationshouldbeobtainedonallpatientswhohaveintentionallyoverdosedorabusedtramadol.Tramadolisauniqueanalgesicwithopiateandnon-opiateeffects.PleasefeelfreetoconsultwiththestaffoftheUPCCforassistanceinmanagingapoisoningoroverdose.
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TOXICOLOGYTODAY www.utahpoisoncontrol.org
references
MarquardtKA,AlsopJA,AlbertsonTE.Tramadolexposuresreportedtostatewidepoisoncontrolsystem.AnnPharmacother2005;39:1039-1044.
SpillerHA,GormanSE,VillalobosD,etal.Prospectivemulticenterevaluationoftramadolexposure.JToxicolClinToxicol1997;35(4):361-4.
Jovanovic-CupicV,MartinovicZ,NesicN.Seizuresassociatedwithintoxicationandabuseoftramadol.ClinicalToxicology2006;44:143-146.
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P O I s O n P E A r l s
mUshrOOmPOIsOnInGby Anna McKeone, MD
Emergency Medicine Resident
references
DiazJH:Evolvingglobalepidemiology,syndromicclassification,generalmanagement,andpreventionofunknownmushroompoisonings.CritCareMed2005;33(2):419-26.
Tong,TCetal:Comparativetreatmentofalpha-amanitinpoisoningwithN-acetylcysteine,benzylpenicillin,cimetidine,thiocticacid,andsilybininamurinemodel.AnnEmergMed.2007;50(3):282-8.
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TOXICOLOGYTODAYDIsTrIbUTEDvIAEmAIL!YoucanregistertoreceivethisnewsletterviaemailbyvisitingthenewsletterregistrationpageontheUtahPoisonControlCenterwebsiteat:www.utahpoisoncontrol.org/newsletters.Don’tmissanyexcitingissues!Ifyouhavequestions,needassistanceregisteringoryoudon’thaveemail,pleasefeelfreetocallusat(801)587-0600.
All“emergency”callstotheUPCCarerecorded.Thedigitalrecordingbecomespartofthepatient’smedicalrecord.Digitalrecordingsarevaluableintrainingnewemployeesandareanintegralpartofourcontinuousqualityimprovementprogram.
TELECOmmUnICATIOnsAnDThEUPCC
PhotocourtesyofUSUExtension.ThankyoutoMaggieWolfandMichaelPiep.Photographer:CraigPoulson
Amanita muscaria
UTAhPOIsOnCOnTrOLCEnTErsTAff
DirectorBarbara Insley Crouch, PharmD, MSPH
Medical DirectorE. Martin Caravati, MD, MPH
Associate Medical DirectorDouglas E. Rollins, MD, PhD
Assistant DirectorsHeather Bennett, MPAScott Marshall, PharmD, CSPI*
Administrative AssistantJulie Gerstner
specialists in Poison InformationKathleen T. Anderson, PharmD, CSPI*Michael Andrus, PharmDBradley D. Dahl, PharmD,CSPI*Michael L. Donnelly, RN, BSN, CSPI*Craig Graham, RN, BSNMo Mulligan, RN, BSN, JDEd Moltz, RN, BSN, CSPI*Sandee Oliver, RN, BSN, CSPI*
Micah Redmond, RN, BSNCathie Smith, RN, BSNJohn Stromness, BS Pharm, RPh, CSPI*
Poison Information ProvidersMegan GlanvilleMonique HallChristine HolmanKaren Thomas
Outreach Education ProviderMarty C. Malheiro, MS, CHES
Assistant Education ProviderSherri Pace, BS, CHES
EditorsE. Martin Caravati, MD, MPHBarbara Insley Crouch, PharmD, MSPH Please send comments and suggestions for future articles to the editor of Toxicology Today at:
585 Komas Dr., suite 200salt lake City, Utah 84108
Or send e-mail to [email protected]
*CSPI denotes Certified Specialist in Poison Information.
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TOXICOLOGYTODAY Administrative: (801) 587-0600
t O x I n s I n t h E n E w s
ThAnkYOU
The Utah Poison Control Center expresses its sincere thanks to the health care professionals, public health officials and toxicology
colleagues that work together to treat and prevent poisonings.
M E E t t h E U P C C s t A f f
Dr.E.mArTInCArAvATIistheMedicalDirectoroftheUtahPoisonControlCenterandattendingtoxicologistattheUniversityHospitalandPrimaryChildren’sHospital.Hereceivedamedicaldegreefrom
theMedicalCollegeofVirginia.HisresidencytraininginemergencymedicinewascompletedatCarolinasMedicalCenterinCharlotte.Heobtainedamaster’sdegreeinPublicHealthattheUniversityofUtahandisboardcertifiedinbothemergencymedicineandmedicaltoxicology.HeiscurrentlySecretary-TreasurerfortheAmericanAcademyofClinicalToxicologyandanAssociateEditoroftheAnnalsofEmergencyMedicine.Heisaco-authorofthetextbook,MedicalToxicology.Whennotsolvingtoxicologicalmysteries,heenjoysfly-fishing,traveling,basketball,hikinganddarkchocolate.Favoritepoisons:arsenic,mercury,ethyleneglycol,acetaminophen.
Home Lead Test Kits Unreliable:TheU.S.ConsumerProductSafetyCommission(CPSC)testedcommonlyavailablehomeleadtestkitsonavarietyofpaintsandotherproductscontainingdifferentlevelsoflead.Of104totaltestresults,morethanhalf(56)werefalsenegatives,andtwowerefalsepositives.Basedonthestudy,consumersshouldnotuseleadtestkitstoevaluateconsumerproductsforpotentialleadhazards.
Haloperidol IV: UpdatedlabelingincludesWARNINGSstatingthatTorsadesdePointesandQTprolongationhavebeenobservedinpatientsreceivinghaloperidol,especiallywhenthedrugisadministeredintravenouslyorinhigherdosesthanrecommended.Haloperidolisnotapprovedforintravenoususe.Dietary Supplements for Erectile Dysfunction - Dangerous Ingredients:ThedietarysupplementsActra-Rx,Axcil,Desirin,EnergyMax,Libidus,Liviro3,Nasutra,Neophase,RhinoVMax,TrueMan,V.Max,Vigor-25,Zencore,Zimaxx,or4EVERONmaycontainanalogsofsildenafil,tadalafil,orvardenafil.Theseagentsaremarketedonwebsitesasnaturalproductsforerectiledysfunctionorsexualenhancement.ThelabelingdoesnotmentiontheseingredientsandtheFDAconsiderstheseproductstobeillegaldrugs.