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1 PRODUCTNAME
VOLTAREN®
75mg/3mLSolutionforinjection
2 QUALITATIVEANDQUANTITATIVECOMPOSITION
Eachampouleof3mLcontains 75mgofdiclofenacsodium.
Forthefulllistofexcipients,seesection6.1
3PHARMACEUTICALFORM
Solutionforinjection.
4CLINICALPARTICULARS
4.1 Therapeuticindications
Intramuscularinjection
Treatmentof:
Renalcolicandbiliarycolic.
SeveremigraineattackswhenotherformsofVoltarenareconsideredunsuitable.
Intramuscularinjection
Treatmentorpreventionofpostoperativepaininahospitalsetting.
4.2 Doseandmethodofadministration
Voltarenshouldonlybeprescribedwhenthebenefitsareconsideredtooutweighthepotentialrisks.
After assessing the risk/benefit ratio in each individual patient, the lowest effective dose for the
shortest possible duration should be used. Adverse effects may be minimized by using the lowest
effectivedosefortheshortestduration
necessarytocontrolsymptoms(seesection4.4).
Dosage
Generalpopulation
Voltarensolutionforinjectionshouldnotbegivenformorethan2 days;ifnecessary,treatmentcan
becontinuedwithVoltarentabletsorsuppositories.
Specialpopulations
Paediatricpopulation
Becauseoftheirdosagestrength,theampoulesofVoltarensolutionforinjectionarenotsuitablefor
childrenandadolescents.
Geriatricpopulation
(Patientsaged65orabove)
No adjustment of the starting dose is generally required for elderly patients However, caution is
indicatedonbasicmedicalgroun ds,especiallyforfrailelderlypatientsorthosewithalowbodyweight
(seesection4.4).
Patientswithestablishedcardiovasculardiseaseorsignificantcardiovascularriskfactors
Treatment with Voltaren solution for injection is generally not recommended in patients with
establishedcardiovasculardiseaseoruncontrolledhypertension.Ifneeded,patientswithestablished
cardiovasculardisease,uncontrolledhypertensionorsignificantriskfactorsforcardiovasculardisease
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should be treated with Voltaren solution for injection only after careful consideration and only at
doses≤100mgdailyinitialtreatmentwithVoltarensolutionforinjectioncontinuese.g.withVoltaren
tabletsorsuppositoriesformorethan4weeks(seesection4.4).
Patientswithrenalimpairment
Voltaren
iscontraindicatedinpatientswithrenalfailure(seesection4.3).
No specific studieshave been carried out in patients with renal impairment, therefore, no specific
doseadjustmentrecommendationscanbemade.CautionisadvisedwhenadministeringVoltarento
patientswithrenalimpairment(seesection4.4).
Patientswithhepaticimpairment
Voltaren
iscontraindicatedinpatientswithhepaticfailure(seesection4.3).
Nospecificstudieshavebeencarriedoutinpatientswithhepa ticimpairment,therefore,nospecific
doseadjustmentrecommendationscanbemade.CautionisadvisedwhenadministeringVoltarento
patientswithmildtomode ratehepaticimpairment(seesection4.4).
MethodofAdministration
Intramuscularinjection
Thefollowingdirectionsforintramuscularinjection mustbefollowedinordertoavoiddamagetoa
nerve or other tissue at the injection site (which may result in muscle weakness, muscle paralysis,
hypoaesthesiaandEmboliacutismedicamentosa(Nicolausyndrome)).
Thedoseis generally one 75mgampoule daily,
givenbydeepintraglutealinjectionintotheupper
outerquadrantusingaseptictechnique.Inseverecases(e.g.colic),thedailydosecanexceptionally
be increased to two injections of 75 mg, separated by an interval of a few hours (one into each
buttock).Alternatively,oneampouleof75mgcanbe
combinedwithotherpharmaceuticalformsof
Voltaren(e.g.tablets,suppositories)uptoatotalmaximumdailydoseof150mg.
Inmigraineattacks,clinicalexperienceislimitedtoinitialuseofoneampouleof75mgadministered
assoon aspossible,followed bysuppositoriesup to100mgonthe
samedayif required. Thetotal
doseshouldnotexceed175mgonthefirstday.
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Intravenousinfusion
Voltarensolutionforinjectionmustnotbegivenasanintravenousbolusinjection.
Immediatelybeforestartinganintravenousinfusion,Voltarensolutionforinjectionmustbediluted
withsaline0.9%orglucose5%infusionsolutionbufferedwithsodium bicarbonateaccordi ngtothe
instructionsgivenin
section6.6.
TwoalternativedosageregimensofVoltarensolutionforinjectionarerecommended.
Forthetreatmentofmoderatetoseverepostoperativepain,75mgshouldbeinfusedcontinuously
overaperiodof30minutesto2hours.Ifnecessary,treatmentmayberepeatedafterafewhours,
butthe
doseshouldnotexceed150mgwithinanyperiodof24hours.
Forthepreventionofpostoperativepain,aloadingdoseof25mgto50mgshouldbeinfusedafter
surgeryover15minutesto1hour,followedbyacontinuousinfusionofabout5mgperhourup
toa
maximumdailydoseof150mg.
4.3 Contraindications
Knownhypersensitivitytotheactivesubstance,sodium metabisulphiteortoanyoftheexcipients
(seesection6.1).
Activegastricorintestinalulcer,bleedingorperforation.
Lasttrimesterofpregnancy(seesection4.6).
Hepaticfailure.
Renalfailure(GFR<15mL/min/1.73m
2
).
Severecardiacfailure(seesection4.4).
Like other nonsteroidal antiinflammatory drugs (NSAIDs), Voltaren is also contraindicated in
patientsinwhomattacksofasthma,angioedema,urticaria,oracuterhinitisareprecipitatedby
acetylsalicylicacidorotherNSAIDs.
4.4 Specialwarningsandprecautionsforuse
General
Patients on longterm treatment should be reviewed regularly with regards to efficacy, adverse
effects,thedevelopmentofriskfactorsandtheongoingneedfortherapy.Considerationshouldbe
giventomonitoringbloodpressure,haemoglobinlevelsandrenalfunction.
Cardiovascularthromboticevents
Observationalstudieshaveindicatedthatnonselective
NSAIDsmaybeassociatedwithanincreased
riskofseriouscardiovasculareventsincludingmyocardialinfarctionandstroke,which may increase
withdoseordurationofuse.Patientswithcardiovasculardiseaseorcardiovascularriskfactorsmay
alsobeatgreaterrisk.
Patientswithpreviousmyocardialinfarction(withinthelast6to
12months)shouldnotusediclofenac.
TreatmentwithVoltarenisgenerally notrecommended in patients with establishedcardiovascular
disease(e.g.congestiveheartfailure,establishedischaemicheartdisease, peripheralarterialdisease)
or uncontrolled hypertension. If needed, patients with established cardiovascular disease,
uncontrolled hypertension or significant risk factors for cardiovascular disease (e.g. hypertension,
hyperlipidemia, diabetes mellitus and smoking) should be treated with Voltaren only after careful
considerationandonlyatdoses≤100mgdailywhentreatmentcontinuesformorethan4weeks.
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Asthecardiovascularrisksofdiclofenac mayincreasewithdoseanddurationofexposure,thelowest
effectivedailydoseshouldbeusedfortheshortestdurationpossible(seesection4.2).Thepatient's
needfor symptomatic relief andresponsetotherapy should be reevaluated periodically, especially
when
treatmentcontinuesformorethan4weeks.
Prescribers should inform the individual patient of the possible increased risk when prescribing
diclofenacforpatientsathighriskofcardiovascularevents.
Physicians and patients should remain alert for such events, even in the absence of previous
cardiovascular symptoms. Patients should be informed
about the signs and/or symptoms of
cardiovasculartoxicityandthestepstotakeshouldtheyoccur.Patientsshouldremainalertforthe
signs and symptoms of serious arteriothrombotic events (e.g. chest pain, shortness of breath,
weakness,slurringofspeech),whichcanoccurwithoutwarning.Patientsshouldbeinstructedtosee
a
physicianimmediatelyincaseofsuchanevent.
Thereisnoconsistentevidencethattheconcurrentuseofaspirinmitigatesthepossibleincreasedrisk
ofseriouscardiovascularthromboticeventsassociatedwithNSAIDuse.
Hypertension
NSAIDs may lead to the onset of new hypertension or worsening of preexisting hypertension and
patients taking antihypertensives with NSAIDs may have an impaired antihypertensive response.
Cautionis advisedwhenprescribingNSAIDstopatientswithhypertension.Bloodpressureshouldbe
monitoredcloselyduringinitiationofNSAIDtreatmentandatregularintervalsthereafter.
Heartfailure
Fluidretentionandoedemahavebeenobservedinsomepatients
takingNSAIDs,thereforecautionis
advisedinpatientswithfluidretentionorheartfailure.
Gastrointestinaleffects
Gastrointestinalbleeding,ulcerationorperforation,whichmayincreasewithdoseordurationofuse
andwhichcanbefatal,havebeenreportedwithallNSAIDs,includingdiclofenac,andmayoccurat
any time during
treatment, with or without warning symptoms or a previous history of serious
gastrointestinal events. They generally have more serious consequences in the elderly. If
gastrointestinalbleedingorulcerationoccurinpatientsreceivingVoltaren,thetreatmentshouldbe
discontinued.
UpperGIulcers,grossbleedingorperforationcausedbyNSAIDsoccurinapproximately
1%ofpatients
treatedfor36monthsand in about 24% ofpatients treatedforoneyear.Thesetrends continue
withlongerdurationofuse,increasingthelikelihoodofdevelopingaseriousGIeventatsometime
duringthecourseoftherapy.However,evenshorttermtherapyis
notwithoutrisk.
Cautionisadvisedinpatientswithriskfactorsforgastrointesti naleventswhomaybeatgreaterrisk
of developing serious gastrointestinal events, e.g. the elderly, those with a history of serious
gastrointestinalevents,smokingandalcoholism.
AswithallNSAIDs,includingdiclofenac,closemedicalsurveillanceisimperativeand
particula rcaution
should be exercised when prescribing Voltaren in patients with symptoms indicative of
gastrointestinal(GI)disordersorwithahistorysuggestiveofgastricorintestinalulceration,bleeding
orperforation(seesection4.8).TheriskofGIbleedingishigherwithincreasingNSAIDdosesandin
patientswithahistory
oful cer, particularlyifcomplicatedwithhaemorrhageorperforationandinthe
elderly.
To reduce the risk of GI toxicityin patients with a history of ulcer, particularly if complicated with
haemorrhageorperforation,andintheelderly,thetreatmentshouldbeinitiatedandmaintainedat
thelowesteffectivedose.
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Combinationtherapywithprotectiveagents(e.g.protonpumpinhibitorsormisoprostol)shouldbe
consideredforthesepatients,andalsoforpatientsrequiringconcomitantuseofmedicinalproducts
containing lowdose acetylsalicylic acid (ASA)/aspirin or other medicinal products likely to increase
gastrointestinalrisk.
Patients with a history
of GItoxicity, particularly the elderly, should report any unusual abdominal
symptoms (especially GI bleeding). Caution is recommended in patients receiving concomitant
medicationswhichcouldincreasetheriskofulcerationorbleeding,suchas systemiccorticosteroids,
anticoagulants,antiplateletagentsorselectiveserotoninreuptakeinhibitors(seesection4.5).
Closemedical
surveillanceandcautionshouldalsobeexercisedinpatientswithulcerativecolitisor
Crohn’sdisease,astheirconditionmaybeexacerbated(seesection4.8).
TheconcurrentuseofaspirinandNSAIDsalsoincreasestheriskofseriousgastrointestinaladverse
events.
NSAIDs,includingdiclofenac,maybeassociatedwithincreasedriskofgastro
intestinalanastomotic
leak.ClosemedicalsurveillanceandcautionarerecommendedwhenusingVoltarenaftergastro
intestinalsurgery.
Doctorsshouldwarnpatientsaboutthesignsandsymptomsofseriousgastrointestinaltoxicity.
Severeskinreactions
Seriousskinreactions,someofthemfatal,includingexfoliativeder matitis,StevensJohnsonsyndrome
(SJS) and toxic epidermal
necrolysis (TEN) and Drug Reaction with Eosinophilia with
SystemicSymptoms(DRESS)(seeDrugReactionwithEosinophiliawithSystemicSymptoms(DRESS)),
havebeenreportedveryrarelyinassociationwiththeuseofNSAIDs,includingVoltaren(seesection
4.8).Theseseriousadverseeventsareidiosyncraticandareindependentofdoseordurationofuse.
Patientsappeartobeathighestriskofthesereactionsearlyinthecourseoftherapy,theonsetofthe
reaction occurring in the majority of cases within the first month of treatment. Patients shouldbe
advisedof the signs and symptoms ofseriousskinreactionsand to consult their
doctorat the first
appearanceofskinrash,mucosallesionsoranyothersignofhypersensitivity,andVoltarenshouldbe
discontinued.
As with other NSAIDs, allergic reactions, including anaphylactic/anaphylactoid reactions, can also
occurinrarecaseswithdiclofenac,withoutearlierexposuretothedrug.
The sodium metabisulphite in the solution for
injection can also lead to isolated severe
hypersensitivityreactionsandbronchospasm.
Drugreactionwitheosino philiaandsystemicsymptoms(DRESS)syndrome
DRESSsyndromehasbeenreportedinpatientstaking NSAIDs.Someoftheseeventshavebeenfatal
or lifethreatening. DRESS syndrome typically, although not exclusively, presents with fever, rash,
lymphadenopathy,
and/or facial sw elling. Other clinical manifestations may include hepatitis,
nephritis, haematological abnormalities, myocarditis, or myositis. Sometimes symptoms of DRESS
syndromemayresembleanacuteviralinfection.Eosinophiliaisoftenpresent.Becausethisdisorder
isvariableinitspresentation,otherorgansystemsnotnotedheremaybeinvolved.Itisimportantto
notethatearlymanifestationsofhypersensitivity, suchasfeverorlymphadenopathy,maybepresent
eventhough rashis notevident.Ifsuchsigns orsymptoms arepresent,discontinuethe NSAIDand
evaluatethepatientimmediately.
Maskingsignsofinfections
Like other NSAIDs, Voltaren may mask the signs and symptoms of
infection due to its
pharmacodynamicproperties.
Preexistingasthma
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In patients with asthma, seasonal allergic rhinitis, swelling of the nasal mucosa (i.e. nasal polyps),
chronic obstructive pulmonary diseases or chronic infections of the respiratory tract (especially if
linked to alle rgic rhinitislike symptoms), reactions on NSAIDs like asthma exacerbations (socalled
intolerancetoanalgesics/analgesicsasthma),
Quincke’soedemaorurticariaaremorefrequentthan
in other patients. Theref ore, special precaution is recommended in such patients (read iness for
emergency).Thisisapplicableaswellforpatientswhoareallergictoothersubstances,e.g.withskin
reactions,pruritusorurticaria.
SpecialcautionisrecommendedwhenVoltarenis used
parenterallyinpatientswithbronchialasthma
becausesymptomsmaybeexacerbated.
Hepaticeffects
Close medical surveillance is required when prescribing Voltaren to patien ts with impaire d hepatic
function,astheirconditionmaybeexacerbated.
AswithotherNSAIDs,includingdiclofenac,valuesofoneormoreliverenzymesmayincrease.During
prolonged treatment
with Voltaren, regular moni toring of hepatic function is indicated as a
precautionarymeasure.Ifabnormalliverfunctiontestspersistorworsen,ifclinicalsignsorsymptoms
consistent with liver disease develop, or if other manifestations occur (e.g. eosinophilia, rash),
Voltaren should be discontinued. Hepatitis may occur with use of diclofenac
without prodromal
symptoms.
CautioniscalledforwhenusingVoltareninpatientswithhepaticporphyria, sinceitmaytriggeran
attack.
Renaleffects
As fluid retention and oedema have been reported in association with NSAID therapy, including
diclofenac,particularcautioniscalledforinpatientswithimpairedcardiacorrenalfunction,
history
of hypertension, the elderly, patients receiving concomitant treatment with diuretics or medicinal
products that can significantly impact renal function, and in those patients with substantial
extracellularvolumedepletion fromanycause,e.g.beforeorafter majorsurgery (seesection4.3).
Monitoringofrenalfunctionisrecommendedasaprecautionary
measurewhenusingVoltareninsuch
cases.Discontinuationoftherapyisusuallyfollowedbyrecoverytothepretreatmentstate.
Injectionsitereactions
Injection site reactions have been reported after the administration of Voltaren intramuscularly,
includinginjectionsite necrosisandemboliacutismedicamentosa,alsoknownasNicolauSyndrome
(particularly after inadvertent
subcutaneous administration). Appropriate needle selection and
injectiontechniqueshouldbe followedduringi.m.administrationofVoltaren(seesection6.7Special
precautionsfordisposalandhandling)
Haematologicaleffects
During prolonged treatment with Voltaren, as with other NSAIDs, monitoring of the blood count is
recommended.
Like other NSAIDs, Voltaren may temporarily inhibit
platelet aggregation. Patients with defects of
haemostasisshouldbecarefullymonito red.
Geriatricpatients
Cautionisindicatedintheelderlyonba sicmedicalgrounds.Inparticular,itisrecommendedthatthe
lowesteffective dosebeusedin frailelderlypatientsorthose withalowbody weight (see section
4.2).
Interactionswith
otherNSAIDs
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TheconcomitantuseofVoltarenwithsystemicNSAIDsincludingcyclooxygenase2 selective inhibitors,
should be avoided due to the absenceof any evidence demonstrating synergistic benefits and the
potentialforadditiveundesirableeffects(seesection4.5).
4.5 Interactionwithothermedicinesandotherformsofinteraction
Thefollowing interactions include thoseobservedwithVoltarensolutionforinjectionand/orother
pharmaceuticalformsofdiclofenac.
Observedinteractionstobeconsidered
CYP2C9 inhibitors: Caution is recommended when coprescribing diclofenac with potent CYP2C9
inhibitors(suchassulfinpyrazoneandvoriconazole),whichcouldresultinasignificantincreaseinpeak
plasmaconcentrations
andexposuretodiclofenacduetoinhibitionofdiclofenacmetabolism.
Lithium:Ifusedconcomitantly,diclofenacmayraiseplasmaconcentrationsoflithium.Monitoringof
theserumlithiumlevelisrecommended.
Digoxin:Ifusedconcomitantly,diclofenacmayraiseplasmaconcentrationsofdigoxin.Monitoringof
theserumdigoxinlevelisrecommended.
Diuretics and
antihypertensive agents: Like other NSAIDs, concomitant use of diclofenac with
diuretics or antihypertensive agents (e.g. betablockers, angiotensin converting enzyme (ACE)
inhibitors)maycauseadecreaseintheirantihypertensiveeffect.Therefore,thecombinationshould
be administeredwith caution and patients, especially the elderly should have their blood pressure
periodicallymonitored.Patients
shouldbeadequatelyhydratedandconsiderationshouldbegivento
monitoring of renal function after initiation of concomitant therapy and periodically thereafter,
particularlyfordiureticsandACEinhibitorsduetotheincreased riskofnephrotoxicity.(seesection
4.4).
Other NSAIDs and cortic osteroids: Concomitant administration of diclofenac and other systemic
NSAIDs
or corticosteroids may increase the frequency of gastrointestinal undesirable effects (see
section4.4).
Anticoagulantsandantiplateletagents:Cautionisrecommendedsinceconcomitantadministration
couldincreasetheriskofbleeding(seesection4.4).Althoughclinicalinvestigationsdonota ppearto
indicatethatdiclofenacaffectstheactionofanticoagulants,therearereports
ofanincreasedriskof
haemorrhageinpatientsreceivingdiclofenacandanticoagulantsconcomitantly.Closemonitoringof
suchpatientsisthereforere commended.
Selective serotonin reuptake inhibitors (SSRIs): Concomitant administration of systemic NSAIDs,
includingdiclofenac, andSSRIsmayincreasetheriskofgastrointestinalbleeding(seesection4.4).
Antidiabetics:Clinicalstudieshaveshown
thatdiclofenaccanbegiventogetherwithoralantidiabetic
agents without influencing their clinical effect. However, there have been isolated reports of both
hypoglycaemic and hyperglycaemic effects necessitating changes in the dosage of the antidiabetic
agents durin g treatment with diclofenac. For this reason, monitoring of the blood glucose level is
recommended
asaprecautionarymeasureduringconcomitanttherapy.
Therehavealsobeenisolatedreportsof metabolicacidosiswhendi clofenacwascoadministeredwith
metformin,especiallyinpatientswithpreexistingrenalimpairment.
Methotrexate: Caution is recommended when NSAIDs, including diclofenac, are administered less
than 24 hours before or after treatment with
methotrexate, since blood concentrations of
methotrexatemayriseandthetoxicityofthissubstancebeincreased.
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Cyclosporin and Tacrolimus: Diclofenac, like other NSAIDs, may increase the nephrotoxicity of
cyclosporinandtacrolimusduetotheeffectonrenalprostaglandins.Therefore,itshouldbegivenat
doseslowerthanthosethatwouldbeusedinpatientsnotreceivingcyclosporinandtacrolimus.
Drugs known to
cause hyperkalemia: Concomitant treatment with potassiumsparing diuretics,
ciclosporin, tacrolimus or trimethoprim may be associated with increased serum potassium levels,
whichshouldthereforebemonitoredfrequently(seesection4.4)
Quinoloneantibacterials:Therehavebeenisolatedreportsofconvulsionswhichmayhavebeendue
toconcomitantuseofquinolonesandNSAIDs.
Phenytoin: When using phenytoin concomitantly with diclofenac, monitorin g of phenytoin plasma
concentrationsisrecommendedduetoanexpectedincreaseinexposuretophenytoin.
CYP2C9 inducers: Caution is recommended when coprescribing diclofenac with CYP2C9 indu cers
(suchasrifampicin),whichcouldresultinasignificantdecreaseinplasmaconcentrationandexposure
to
diclofenac.
4.6 Fertility,pregnancyandlactation
UseinPregnancy
RiskSummary
Thereareinsufficientdataontheuseofdiclofenacinpregnantwomen.Someepidemiologicalstudies
suggest an increased risk of miscarriage after use of a prostaglandin synthesis inhibitor (such as
NSAIDs)inearlypregnancy,howevertheoveralldataareinconclusive.
Diclofenac has been shown to cross
the placental barrier in humans. Use of NSAIDs, including
diclofenac,cancauseuterineinertia,prematureclosureofthefetalductusarteriosusandfetalrenal
impairmentleadingtooligohydramnios.
Becauseoftheserisks,Voltarenshouldnotbeusedduringthefirsttwotrimestersofpregnancyunless
theexpectedbenefitstothe
motheroutweightheriskstothefoetus.
Inaddition,Voltarenshouldnotbeusedduringthethirdtrimesterofpregnancy(seesection4.3).
PrematureClosureofFetalDuctusArteriosus
As with other NSAIDs, use of diclofenac during the third trimester of pregnancy is contraindicate d
owingtothepossibilityofprematureclosure
ofthefetalductusarteriosus(seesection4.3).
Humandata
Publishedliteraturereportsthattheuseof NSAIDsduringthethirdtrimesterofpregnancymaycause
prematureclosureofthefetalductusarteriosus
Oligohydramnios/FetalRenalImpairment
Risk of fetal renal impairment with subsequent oligohydramnios has been observed when NSAIDs
(including
diclofenac)wereusedfromthe20thweekofpregnancyonwards.
IfanNSAID isnecessaryfromthe20thweekgestationtotheendofthe2ndtrimester,limittheuse
tothelowesteffectivedoseandshortestdurationpossible.IfVoltarentreatmentextendsbeyond48
hours, consider monitoring with ultrasound for
oligohydramnios. If oligohydramnios occurs,
discontinueVoltarenandfollowupaccordingtoclinicalpractice.
Humandata
Published studies and postmarketing reports describe maternal NSAID use at about 20 weeks
gestation or later in pregnancy associated with fetal renal impairment leading to oligohydramnios.
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These adverse outcomes are seen, on average, after days to weeks of treatment, although
oligohydramnioshasbeeninfre quentlyreportedassoonas48hoursafterNSAIDinitiation.Inmany
cases,butnotall,thedecreaseinamnioticfluidwastransientandreversible with cessation of the
drug.
LabourorDelivery
TherearenostudiesontheeffectsofVoltarenduringlabourordelivery.AswithotherNSAIDs,useof
diclofenacduringthethirdtrimesterofpregnancyiscontraindicatedowingtothepossibilityofuterine
inertia(seesection4.3).
Breastfeeding
LikeotherNSAIDs,diclofenacpassesintothe
breastmilkinsmallamounts.Therefore,Voltarenshould
notbeadministeredduringbreastfeedinginordertoavoidundesirableeffectsintheinfant.
Humandata
Diclofenac was detected in a low concentration (100 ng/mL) in breast milk in one nursing mother
treated orally with a diclofenac salt of 150 mg/day. The
estimated dose ingested by an infant
consumingbreastmilkisequivalentto0.03mg/kg/day.
Fertility
Femalefertility
As with other NSAIDs, the use of Voltaren may impair female fertility and is not recommended in
women attempting to conceive. Inwomen who have difficultiesconceivingor who are un dergoing
investigationof
infertility,withdrawalofVoltarenshouldbeconsidered.
Malefertility
ThereisnohumandataontheeffectofVoltarenonmalefertility.
4.7 Effectsonabilitytodriveandusemachines
Patientswho experiencevisualdisturbances,dizziness,vertigo,somnolence,centralnervoussystem
disturbances, drowsiness, or fatigue while taking NSAIDs should refrain from driving or operating
machinery.
4.8 Undesirableeffects
Adversedrugreactionsfromclinicaltrialsand/orspontaneousorliteraturereports(Table1) arelisted
byMedDRAsystemorganclass.Withineachsystemorganclass,theadversedrugreactionsareranked
byfrequency,withthemostfrequen treactionsfirst.Withineachfrequencygrouping,adversedrug
reactionsarepresentedinorderof
decreasing seriousness.Inaddition,thecorrespondingfrequency
category for each adverse drug reaction is based on the following convention (CIOMS III): very
common (>1/10); common (1/100, <1/10); uncommon (1/1,000, <1/100); rare (1/10,000,
<1/1,000);veryrare(<1/10,000).
ThefollowingundesirableeffectsincludethosereportedwithVoltarensolutionfor
injectionand/or
otherpharmaceuticalformsofdiclofenac,witheithershorttermorlongtermuse.
Table1. Adversedrugreactions
Infectionsandinfestations
Veryrare: Injectionsiteabscess
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Bloodandlymphaticsystemdisorders
Veryrare: Thrombocytopenia,leukopenia,anaemia(includinghaemolyticandaplastic
anaemia),agranulocytosis.
Immunesystemdisorders
Rare: Hypersensitivity,anaphylacticandanaphylactoidreactions(including
hypotensionandshock).
Veryrare: Angioedema(includingfaceoedema).
Psychiatricdisorders
Veryrare: Disorientation,depression,insomnia,nightmare,irritability,psychotic
disorder.
Nervoussystemdisorders
Common: Headache,dizziness.
Rare: Somnolence.
Veryrare: Paraesthesia,memoryimpairment,convulsion,anxiety,tremor,meningitis
aseptic,dysgeusia,cerebrovascularaccident.
Eyedisorders
Veryrare: Visualimpairment,blurredvision,diplopia.
Earandlabyrinthdisorders
Common: Vertigo.
Veryrare: Tinnitus,impairedhearing
Cardiacdisorders
Uncommon*:
Frequencyunknown:
Myocardialinfarction,cardiacfailure,palpitations,chestpain.
Kounissyndrome
Vasculardisorders
Veryrare: Hypertension,vasculitis.
Respiratory,thoracicandmediastinaldisorders
Rare: Asthma(includingdyspnoea).
Veryrare: Pneumonitis.
Gastrointestinaldisorders
Common Nausea,vomiting,diarrhoea,dyspepsia,abdominalpain,flatulence,anorexia.
Rare: Gastritis,gastrointestinalhaemorrhage,haematemesis,melaena,
haemorrhagicdiarrhoea,gastrointestinalulcer(withorwithoutbleeding
gastrointestinalstenosisorperforationwhichmayleadtoperitonitis).
Veryrare: Colitis(includinghaemorrhagiccolitis,ischemiccolitisandexacerbationof
ulcerativecolitisorCrohn’sdisease),constipation,
stomatitis,glossitis,
oesophagealdisorder,intestinaldiaphragmdisease,pancreatitis,
haemorrhoidsaggravated.
Hepatobiliarydisorders
Common: Transaminasesincreased.
Rare: Hepatitis,jaundice,liverdisorder.
Veryrare: Fulminanthepatitis,hepaticnecrosis,hepaticfailure.
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Skinandsubcutaneoustissuedisorders
Common: Rash.
Rare: Urticaria.
Veryrare: Bullousdermatitis,eczema,erythema,erythemamultiforme,StevensJohnson
syndrome,toxicepidermalnecrolysis(Lyell’ssyndrome),exfoliative
dermatitis,alopecia,photosensitivityreaction,allergicpurpura,Henoch
Schonleinpurpura,pruritus.
Unknown Drugreactionwitheosinophiliawithsystemicsymptoms(DRESS)
Renalandurinarydisorders
Veryrare: Acutekidneyinjury(acuterenalfailure),haematuria,proteinuria,nephrotic
syndrome,tubulointerstitialnephritis,renalpapillarynecrosis.
Generaldisordersandadministrationsiteconditions
Common: Injectionsitereaction,injectionsitepain,injectionsiteinduration
Rare: Oedema,injectionsitenecrosis
*Thefrequencyreflectsdatafromlong‐termtreatmentwithahighdose(150mg/day)
Adversedrugreactionsfrompostmarketingexperience(frequencynotknown)
ThefollowingadversedrugreactionhasbeenderivedfrompostmarketingexperiencewithVoltaren.
Becausethisreactionwasreportedvoluntarilyfromapopulationofuncertainsize,itisnotpossible
toreliablyestimateitsfrequencywhichisthereforecategorizedasnot
known.
Table2Adversedrugreactionderivedfrompostmarketingexperience(frequencynotknown)
Injectionsitereactions
Emboliacutismedicamentosa(Nicolausyndrome)
Descriptionofselectedadversereactions
Arteriothromboticevents
Metaanalysis and pharmacoepidemiological data point towards a small increased risk of
arteriothromboticevents (forexamplemyocardialinfarction)associatedwith theuse ofdiclofenac,
particularlyatahighdose(150mgdaily)andduringlongtermtreatment(seesection4.4).
Visualeffects
Visual
disturbances such as visual impairment, blurred vision or diplopia appear to be NSAID class
effectsandareusuallyreversibleondiscontinuation.Alikelymechanismforthevisualdisturbancesis
the inhibition of prostaglandin synthesis and other related compounds that alter the regulation of
retinalbloodflowresultinginpotentialchangesin
vision.Ifsuchsymptomsoccurduringdiclofenac
treatment,anophthalmologicalexaminationmaybeconsideredtoexcludeothercauses.
Reportingofsuspectedadversereactions
Reporting suspected adverse reactions after authorisation of the medicine is important. It allows
continuedmonitoringofthebenefit/riskbalanceofthemedicine.Healthcareprofessionalsareasked
toreportanysuspectedadversereactionshttps://nzphvc.otago.ac.nz/reporting/.
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4.9 Overdose
Symptoms
There is no typical clinical picture resulting from diclofenac overdosage. Overdosage can cause
symptoms such as vomiting, gastrointestinal haemorrhage, diarrhoea, dizziness, tinnitus or
convulsions.Intheeventofsignificantpoisoning,acuterenalfailureandliverdamagearepossible.
Therapeuticmeasures
ManagementofacutepoisoningwithNSAIDs,includingdiclofenac,essentiallyconsists
ofsupportive
measuresandsymptomatictreatment.Supportive measuresandsymptomatictreatmentshouldbe
givenforcomplicationssuchashypotension,renalfailure,convulsions,gastrointestinaldisorder, and
respiratorydepression.
Special measures such as forced diuresis, dialysis or haemoperfusion are probably of no help in
eliminatingNSAIDs,includingdiclofena c,duetothehigh
proteinbindingandextensivemetabolism.
For advice on the management of overdose please contact the National Poisons Centre on 0800
POISON(0800764766).
5 PHARMACOLOGICALPROPERTIES
5.1 Pharmacodynamicproperties
Pharmacotherapeuticgroup:antiinflammatoryandantirheumaticproducts,nonsteroids,aceticacid
derivativesandrelatedsubstances(ATCcode:M01AB05).
Mechanismofaction
Voltarencontainsdiclofena csodium,anonsteroidalcompoundwithpronouncedantirheumatic,anti
inflammatory, analgesic, and antipyretic properties. Inhibition of prostaglandin biosynthesis, which
has been demonstrated in experiments, is considered
fundamental to its mechanism of action.
Prostaglandinsplayamajorroleincausinginflammation,pain,andfever.
Diclofenacsodiuminvitrodoesnot suppressproteoglycanbiosynthesisincartilageatcon centrations
equivalenttothosereachedinhumans.
Pharmacodynamiceffects
In rheumatic diseases, the antiinflammatory and analgesic properties of Voltaren elicit
a clinical
response characterised by marked relief from signs and symptoms such as pain at rest, pain on
movement,morningstiffness,andswellingofthejoints, aswellas byanimprovementinfunction.
Voltarenhasalso beenfoundtoexertapronouncedanalgesiceffectinmoderateandseverepainof
nonrheumaticorigin,aneffectwhichsetsinwithin15to30minutes.
Voltarenhasalsobeenshowntohaveabeneficialeffectinmigraineattacks.
In posttraumatic and postoperative inflammatory conditions, Voltaren rapidly relieves both
spontaneouspainandpainonmovementandreducesinflammatoryswellingandwound
oedema.
When used concomitantly with opioi ds for the management of postoperative pain, Voltaren
significantlyreducestheneedforopioids.
Voltaren ampoules are particularly suitable for initialtreatment of inflammatory and degenerative
rheumaticdiseases,andofpainfulconditionsduetoinflammationofnonrheumaticorigin.
5.2 Pharmacokineticproperties
Absorption
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Afteradministrationof75mgdiclofenacbyintramuscularinjection,absorptionsetsinimmediately,
andmeanpeakplasmaconcentrationsofabout2.5micrograms/mL(8micromol/L)arereachedafter
about20mi nutes.When75mgdiclofenacisadministeredasanintravenousinfusionover2hours,
meanpeakplasma
concentrationsare about1.9micrograms/mL(5.9micromol/L).Shorterinfusions
result in higher peak plasma concentrations, while longer infusions give plateau concentrations
proportionaltotheinfusionrateafter3to4hours.Incontrast,plasmaconcentrationsdeclinerapidly
once peak levels have been reached following intramuscular injection or administration of gastro
resistanttabletsorsuppositories.
The area under the concentration curve(AUC) after intramuscular or intravenous administration is
about twice as large as it is following oral or rectal administration, because about half the active
substance is metabolised during its first passage through the liver ("first pass" effect) when
administeredviathe
oralorrectalroutes.
Pharmacokineticbehaviourdoesnotchangeafterrepeatedadministration.Noaccumulationoccurs
providedtherecommendeddosageintervalsareobserved.
Distribution
99.7%ofdiclofenacisboundtoserumproteins,mainlytoalbumin99.4% ).Theapparentvolumeof
distributioncalculatedis0.12to0.17L/kg.
Diclofenacentersthesynovial
fluid,wheremaximum concentrationsaremeasured2to4hoursafter
peakplasmavalueshavebeenattained.Theapparenthalflifeforeliminationfromthesynovialfluid
is3to6hour s.Twohoursafterreachingpeakplasmavalues,concentrationsoftheactivesubstance
arealreadyhigherinthesynovialfluid
thanintheplasma,andtheyremainhigherforupto12hours.
Diclofenacwasdetectedinalowconcentration(100ng/mL )inbreastmilkinonenursingmother.The
estimated amount ingested by an infant consuming breast mil k is equivalent to a 0.03 mg/kg/day
dose.
Metabolism
Biotransformation of diclofenac
takes place partly by glucuronidation of the intact molecule, but
mainly by single and multiple hydro xylation and methoxylation, resulting in several phenolic
metabolites (3’hydroxy,4’hydroxy,5hydroxy,4’,5dihydroxy‐ and 3’hydroxy4’methoxy
diclofenac), most of which are converted to glucuronide conjugates. Two of these phenolic
metabolitesare
biologicallyactive,buttoamuchsmallerextentthandiclofenac.
Elimination
Totalsystemicclearanceofdiclofenacfr omplasmais 263±56mL/min(meanvalue±SD).Theterminal
halflifein plasmais1to2hours.Four ofthemetabolites,includingthetwo activeones,alsohave
shortplasma
halflivesof1to3hours.Onemetabolite,3’hydroxy4’methoxydiclofenachasamuch
longerplasmahalflife.However,thismetaboliteisvirtuallyinactive.
About60%oftheadministereddoseisexcretedintheurineastheglucuronideconjugateoftheintact
moleculeandasmetabolites,mostof
whicharealsoconvertedtoglucuronideconjugates.Lessthan
1%isexcretedasunchangedsubstance.Therestofthedoseiseliminatedasmetabolitesthroughthe
bileinthefaeces.
Linearity/nonlinearity
Theamountabsorbedisinlinearproportiontothesizeofthedose.
Pharmacokineticsinspecialpatientgroups
Norelevantagedependentdifferencesinthedrug’sabsorption,metabolism,orexcretionhavebeen
observed.However,inafewelderlypatientsa15minuteintravenousinfusionresultedin50%higher
plasmaconcentrationsthanexpectedfromthedataonyounghealthysubjects.
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Inpatientssufferingfromrenalimpairment,noaccumulationoftheunchangedactivesubstancecan
beinferredfr om the singledose kinetics when applying theusualdosageschedule.Atacreatinine
clearance of <10 mL/min, thecalculated steadystate plasma levels of the hy droxymetabolitesare
about
4 times higher than in normal subjects. However, the metabolites are ultimately cleared
throughthebile.
In patients with chronic hepatitis or nondecompensated cirrhos is, the kinetics and metabolism of
diclofenacarethesameasinpatientswithoutliverdisease.
5.3 Preclinicalsafetydata
Preclinical data from acute and repeated dose toxicity studies, as well as from genotoxicity,
mutagenicity,andcarcinogenicitystudieswithdiclofenacrevealednospecifichazardforhumansat
theintendedtherapeuticdoses.
Oligohydramnios/FetalRenalImpairment
Reproductive and developmental studies in animals demonstrated that diclofenac administration
duringorganogenesisdidnotproduce teratogenicity despite
theinduction ofmaternaltoxicityand
fetaltoxicityinmiceatoraldosesupto20mg/kg/day(0.41timesthemaximumrecommendedhuman
dose[MRHD]ofVoltaren,200mg/day,basedonbodysurfacearea(BSA)comparison),andinratsand
rabbitsatoraldosesupto10mg/kg/day(0.41and
0.81times,respectively,theMRHDbasedonBSA
comparison).
In a study in which pregnant rats were orally administered 2 or 4 mg/kg diclofenac (0.08 and 0.16
timestheMRHDbasedonBSA)fromGestationDay15throughLactationDay21,significantmaternal
mortality (caused by gastrointestinal ulceration and peritonitis) was
noted. These maternally toxic
doses were associated with dystocia, prolonged gestation, intrauterine growth retardation, and
decreasedfetalsurvival.
AdministrationofNSAIDs(includingdiclofenac)inhibitedovulationintherabbitandimplantationand
placentationintherat,andledtoprematureclosureofthefetalductusarteriosus.
LabourorDelivery
In animal
studies, NSAIDS, including diclofenac, inhibit prostaglandin synthesis, cause delayed
parturition,andincreasetheincidenceofstillbirth.
Fertility
Diclofenacadministeredtomaleandfemaleratsat4mg/kg/day(approximately0.16timestheMRHD
basedonBSAcomparison)didnotaffectfertility.
6 PHARMACEUTICALPARTICULARS
6.1 Listofexcipients
Mannitol;sodiummetabisulphite(E223);benzylalcohol;propyleneglycol;waterforinjection;sodium
hydroxide;nitrogen,pure.
Informationmightdifferinsomecountries.
6.2 Incompatibilities
Asarule,Voltarensolutionforinjectionshouldnotbemixedwithotherinjectionsolutions.
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Infusionsolutionsofsodiumchloride0.9%orglucose5%withoutsodiumbicarbonateasanadditive
present a risk of supersaturation, possibly leading to formation of crystals or precipitates. Infusion
solutionsotherthanthoserecommendedshouldnotbeused.
6.3 Shelflife
2years.
6.4 Specialprecautionsforstorage
Storebelow30°C.
Storeintheoriginalpackageinordertoprotectfromlight.
6.5 Natureandcontentsofcontainer
Colourlessglassampoulesof3mLinpacksof5.
6.6 Specialprecautionsfordisposalandhandling
Thefollowingdirectionsforintramuscularinjection mustbefollowedinordertoavoiddamagetoa
nerveorothertissueattheinjectionsite.
To be injected either intramuscularly by deep intragluteal injection into the upper outer quadrant
using aseptic technique, or intravenously by slow infusion after dilution in accordance with
the
followinginstructions.Eac hampouleisforsingleuseonly.Thesolutionshouldbeusedimmediately
afteropening.Anyunusedcontentsshouldbediscarded.
Appropriateinjectiontechniqueandlengthoftheneedle(consideringthethicknessofthepatient’s
glutealfat)shouldbeusedtoavoidinadvertentsubcutaneousadministrationofVoltaren
injection.
Dependingontheintendeddurationofinfusion(seeDosageofadministration),mix100to500mLof
isotonic saline (sodium chloride 0.9 % solution) or glucose 5 % solution buffered with sodium
bicarbonate injectable solution (0.5 mL of 8.4 % or 1 mL of 4.2 % or a corresponding volume
of a
different concentration) taken from a freshly opened container; add the contents of one Voltaren
ampouletothissolution.Onlyclearsolutionsshouldbeused.Ifcrystalsorprecipitatesareobserved,
theinfusionsolutionshouldnotbeused.
7 MEDICINESCHEDULE
Prescriptionmedicine
8 SPONSOR
NovartisNewZealandLimited
POBox99102
Newmarket
Auckland1149
NewZealand
Telephone:0800354335
®=RegisteredTrademark
NEWZEALANDDATASHEET
Page16of16
9 DATEOFFIRSTAPPROVAL
21May1980
10 DATEOFREVISIONOFTHETEXT
07March2023
SUMMARYTABLEOFCHANGES
Sectionchanged Summaryofnewinformation
4.4Specialwarnings
andprecautionsforuse
AddedtextaboutDrugReactionwithEosinophiliawithSystemic
Symptoms(DRESS)
4.8Adverseeffects AddedDRESStoTable1Adversedrugreactions
Internaldocumentcode:vli170323iNZbasedonCDSv3.0dated8September2 022