Australia - English - Department of Health (Therapeutic Goods Administration)

sanofi-aventis australia pty ltd - vigabatrin, quantity: 500 mg - tablet, uncoated - excipient ingredients: sodium starch glycollate; hypromellose; microcrystalline cellulose; macrogol 8000; magnesium stearate; titanium dioxide; povidone - vigabatrin should be used under the general direction of a specialist practitioner who is experienced in the treatment of epilepsy for the treatment of refractory epilepsy which is not satisfactorily controlled by other antiepileptic drugs. it should be used, initially, as add on therapy.

United States - English - NLM (National Library of Medicine)

lundbeck pharmaceuticals llc - vigabatrin (unii: gr120krt6k) (vigabatrin - unii:gr120krt6k) - vigabatrin 50 mg in 1 ml - sabril is indicated as adjunctive therapy for adults and pediatric patients 2 years of age and older with refractory complex partial seizures who have inadequately responded to several alternative treatments and for whom the potential benefits outweigh the risk of vision loss [see warnings and precautions (5.1)] . sabril is not indicated as a first line agent for complex partial seizures. sabril is indicated as monotherapy for pediatric patients with infantile spasms 1 month to 2 years of age for whom the potential benefits outweigh the potential risk of vision loss [see warnings and precautions (5.1) ]. none. pregnancy exposure registry there is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to aeds, including sabril, during pregnancy. encourage women who are taking sabril during pregnancy to enroll in the north american antiepileptic drug (naaed) pregnancy registry. this can be done by calling the toll-free number 1-888-233-2334 or visiting the website, http://www.aedpregnancyregistry.org/ . this must be done by the patient herself. risk summary there are no adequate data on the developmental risk associated with the use of sabril in pregnant women. limited available data from case reports and cohort studies pertaining to sabril use in pregnant women have not established a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. however, based on animal data, sabril use in pregnant women may result in fetal harm. when administered to pregnant animals, vigabatrin produced developmental toxicity, including an increase in fetal malformations and offspring neurobehavioral and neurohistopathological effects, at clinically relevant doses. in addition, developmental neurotoxicity was observed in rats treated with vigabatrin during a period of postnatal development corresponding to the third trimester of human pregnancy (see data) . in the u.s. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively. the background risk of major birth defects and miscarriage for the indicated population is unknown. data animal data administration of vigabatrin (oral doses of 50 to 200 mg/kg/day) to pregnant rabbits throughout the period of organogenesis was associated with an increased incidence of malformations (cleft palate) and embryofetal death; these findings were observed in two separate studies. the no-effect dose for adverse effects on embryofetal development in rabbits (100 mg/kg/day) is approximately 1/2 the maximum recommended human dose (mrhd) of 3 g/day on a body surface area (mg/m2 ) basis. in rats, oral administration of vigabatrin (50, 100, or 150 mg/kg/day) throughout organogenesis resulted in decreased fetal body weights and increased incidences of fetal anatomic variations. the no-effect dose for adverse effects on embryo-fetal development in rats (50 mg/kg/day) is approximately 1/5 the mrhd on a mg/m2 basis. oral administration of vigabatrin (50, 100, 150 mg/kg/day) to rats from the latter part of pregnancy through weaning produced long-term neurohistopathological (hippocampal vacuolation) and neurobehavioral (convulsions) abnormalities in the offspring. a no-effect dose for developmental neurotoxicity in rats was not established; the low-effect dose (50 mg/kg/day) is approximately 1/5 the mrhd on a mg/m2 basis. in a published study, vigabatrin (300 or 450 mg/kg) was administered by intraperitoneal injection to a mutant mouse strain on a single day during organogenesis (day 7, 8, 9, 10, 11, or 12). an increase in fetal malformations (including cleft palate) was observed at both doses. oral administration of vigabatrin (5, 15, or 50 mg/kg/day) to young rats during the neonatal and juvenile periods of development (postnatal days 4-65) produced neurobehavioral (convulsions, neuromotor impairment, learning deficits) and neurohistopathological (brain vacuolation, decreased myelination, and retinal dysplasia) abnormalities in treated animals. the early postnatal period in rats is generally thought to correspond to late pregnancy in humans in terms of brain development. the no-effect dose for developmental neurotoxicity in juvenile rats (5 mg/kg/day) was associated with plasma vigabatrin exposures (auc) less than 1/30 of those measured in pediatric patients receiving an oral dose of 50 mg/kg. risk summary vigabatrin is excreted in human milk. the effects of sabril on the breastfed infant and on milk production are unknown. because of the potential for serious adverse reactions from vigabatrin in nursing infants, breastfeeding is not recommended. if exposing a breastfed infant to sabril, observe for any potential adverse effects [see warnings and precautions (5.1, 5.3, 5.4, 5.8)] . the safety and effectiveness of sabril as adjunctive treatment of refractory complex partial seizures in pediatric patients 2 to 16 years of age have been established and is supported by three double-blind, placebo-controlled studies in patients 3 to 16 years of age, adequate and well-controlled studies in adult patients, pharmacokinetic data from patients 2 years of age and older, and additional safety information in patients 2 years of age [see clinical pharmacology (12.3) and clinical studies (14.1)]. the dosing recommendation in this population varies according to age group and is weight-based [see dosage and administration (2.2)]. adverse reactions in this pediatric population are similar to those observed in the adult population [see adverse reactions (6.1)] . the safety and effectiveness of sabril as monotherapy for pediatric patients with infantile spasms (1 month to 2 years of age) have been established [see dosage and administration (2.3) and clinical studies (14.2)] . safety and effectiveness as adjunctive treatment of refractory complex partial seizures in pediatric patients below the age of 2 and as monotherapy for the treatment of infantile spasms in pediatric patients below the age of 1 month have not been established. duration of therapy for infantile spasms was evaluated in a post hoc analysis of a canadian pediatric epilepsy network (cpen) study of developmental outcomes in infantile spasms patients. this analysis suggests that a total duration of 6 months of vigabatrin therapy is adequate for the treatment of infantile spasms. however, prescribers must use their clinical judgment as to the most appropriate duration of use [see clinical studies (14.2)].   abnormal mri signal changes and intramyelinic edema (ime) in infants and young children being treated with sabril have been observed [see warnings and precautions (5.3, 5.4)] . juvenile animal toxicity data oral administration of vigabatrin (5, 15, or 50 mg/kg/day) to young rats during the neonatal and juvenile periods of development (postnatal days 4-65) produced neurobehavioral (convulsions, neuromotor impairment, learning deficits) and neurohistopathological (brain gray matter vacuolation, decreased myelination, and retinal dysplasia) abnormalities. the no-effect dose for developmental neurotoxicity in juvenile rats (the lowest dose tested) was associated with plasma vigabatrin exposures (auc) substantially less than those measured in pediatric patients at recommended doses. in dogs, oral administration of vigabatrin (30 or 100 mg/kg/day) during selected periods of juvenile development (postnatal days 22-112) produced neurohistopathological abnormalities (brain gray matter vacuolation). neurobehavioral effects of vigabatrin were not assessed in the juvenile dog. a no-effect dose for neurohistopathology was not established in juvenile dogs; the lowest effect dose (30 mg/kg/day) was associated with plasma vigabatrin exposures lower than those measured in pediatric patients at recommended doses [see warnings and precautions (5.4)]. clinical studies of vigabatrin did not include sufficient numbers of patients aged 65 and over to determine whether they responded differently from younger patients. vigabatrin is known to be substantially excreted by the kidney, and the risk of toxic reactions to this drug may be greater in patients with impaired renal function. because elderly patients are more likely to have decreased renal function, care should be taken in dose selection, and it may be useful to monitor renal function. oral administration of a single dose of 1.5 g of vigabatrin  to elderly (≥65 years) patients with reduced creatinine clearance (<50 ml/min) was associated with moderate to severe sedation and confusion in 4 of 5 patients, lasting up to 5 days. the renal clearance of vigabatrin was 36% lower in healthy elderly subjects (≥65 years) than in young healthy males. adjustment of dose or frequency of administration should be considered. such patients may respond to a lower maintenance dose [see dosage and administration (2.4) and clinical pharmacology (12.3 )] . other reported clinical experience has not identified differences in responses between the elderly and younger patients. dose adjustment, including initiating treatment with a lower dose, is necessary in pediatric patients 2 years of age and older and adults with mild (creatinine clearance >50 to 80 ml/min), moderate (creatinine clearance >30 to 50 ml/min) and severe (creatinine clearance >10 to 30 ml/min) renal impairment [see dosage and administration (2.4) and clinical pharmacology (12.3)] . vigabatrin is not a controlled substance. vigabatrin did not produce adverse events or overt behaviors associated with abuse when administered to humans or animals. it is not possible to predict the extent to which a cns active drug will be misused, diverted, and/or abused once marketed. consequently, physicians should carefully evaluate patients for history of drug abuse and follow such patients closely, observing them for signs of misuse or abuse of vigabatrin (e.g., incrementation of dose, drug-seeking behavior). following chronic administration of vigabatrin to animals, there were no apparent withdrawal signs upon drug discontinuation.  however, as with all aeds, vigabatrin should be withdrawn gradually to minimize increased seizure frequency [see warnings and precautions (5.6)] .

United States - English - NLM (National Library of Medicine)

lundbeck pharmaceuticals llc - vigabatrin (unii: gr120krt6k) (vigabatrin - unii:gr120krt6k) - vigabatrin 500 mg - sabril is indicated as adjunctive therapy for adults and pediatric patients 2 years of age and older with refractory complex partial seizures who have inadequately responded to several alternative treatments and for whom the potential benefits outweigh the risk of vision loss [see warnings and precautions (5.1)] . sabril is not indicated as a first line agent for complex partial seizures. sabril is indicated as monotherapy for pediatric patients with infantile spasms 1 month to 2 years of age for whom the potential benefits outweigh the potential risk of vision loss [see warnings and precautions (5.1) ]. none. pregnancy exposure registry there is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to aeds, including sabril, during pregnancy. encourage women who are taking sabril during pregnancy to enroll in the north american antiepileptic drug (naaed) pregnancy registry. this can be done by calling the toll-free number 1-888-233-2334 or visiting the website, http://www.aedpregnancyregistry.org/ . this must be done by the patient herself. risk summary there are no adequate data on the developmental risk associated with the use of sabril in pregnant women. limited available data from case reports and cohort studies pertaining to sabril use in pregnant women have not established a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. however, based on animal data, sabril use in pregnant women may result in fetal harm. when administered to pregnant animals, vigabatrin produced developmental toxicity, including an increase in fetal malformations and offspring neurobehavioral and neurohistopathological effects, at clinically relevant doses. in addition, developmental neurotoxicity was observed in rats treated with vigabatrin during a period of postnatal development corresponding to the third trimester of human pregnancy (see data) . in the u.s. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively. the background risk of major birth defects and miscarriage for the indicated population is unknown. data animal data administration of vigabatrin (oral doses of 50 to 200 mg/kg/day) to pregnant rabbits throughout the period of organogenesis was associated with an increased incidence of malformations (cleft palate) and embryofetal death; these findings were observed in two separate studies. the no-effect dose for adverse effects on embryofetal development in rabbits (100 mg/kg/day) is approximately 1/2 the maximum recommended human dose (mrhd) of 3 g/day on a body surface area (mg/m2 ) basis. in rats, oral administration of vigabatrin (50, 100, or 150 mg/kg/day) throughout organogenesis resulted in decreased fetal body weights and increased incidences of fetal anatomic variations. the no-effect dose for adverse effects on embryo-fetal development in rats (50 mg/kg/day) is approximately 1/5 the mrhd on a mg/m2 basis. oral administration of vigabatrin (50, 100, 150 mg/kg/day) to rats from the latter part of pregnancy through weaning produced long-term neurohistopathological (hippocampal vacuolation) and neurobehavioral (convulsions) abnormalities in the offspring. a no-effect dose for developmental neurotoxicity in rats was not established; the low-effect dose (50 mg/kg/day) is approximately 1/5 the mrhd on a mg/m2 basis. in a published study, vigabatrin (300 or 450 mg/kg) was administered by intraperitoneal injection to a mutant mouse strain on a single day during organogenesis (day 7, 8, 9, 10, 11, or 12). an increase in fetal malformations (including cleft palate) was observed at both doses. oral administration of vigabatrin (5, 15, or 50 mg/kg/day) to young rats during the neonatal and juvenile periods of development (postnatal days 4-65) produced neurobehavioral (convulsions, neuromotor impairment, learning deficits) and neurohistopathological (brain vacuolation, decreased myelination, and retinal dysplasia) abnormalities in treated animals. the early postnatal period in rats is generally thought to correspond to late pregnancy in humans in terms of brain development. the no-effect dose for developmental neurotoxicity in juvenile rats (5 mg/kg/day) was associated with plasma vigabatrin exposures (auc) less than 1/30 of those measured in pediatric patients receiving an oral dose of 50 mg/kg. risk summary vigabatrin is excreted in human milk. the effects of sabril on the breastfed infant and on milk production are unknown. because of the potential for serious adverse reactions from vigabatrin in nursing infants, breastfeeding is not recommended. if exposing a breastfed infant to sabril, observe for any potential adverse effects [see warnings and precautions (5.1, 5.3, 5.4, 5.8)] . the safety and effectiveness of sabril as adjunctive treatment of refractory complex partial seizures in pediatric patients 2 to 16 years of age have been established and is supported by three double-blind, placebo-controlled studies in patients 3 to 16 years of age, adequate and well-controlled studies in adult patients, pharmacokinetic data from patients 2 years of age and older, and additional safety information in patients 2 years of age [see clinical pharmacology (12.3) and clinical studies (14.1)]. the dosing recommendation in this population varies according to age group and is weight-based [see dosage and administration (2.2)]. adverse reactions in this pediatric population are similar to those observed in the adult population [see adverse reactions (6.1)] . the safety and effectiveness of sabril as monotherapy for pediatric patients with infantile spasms (1 month to 2 years of age) have been established [see dosage and administration (2.3) and clinical studies (14.2)] . safety and effectiveness as adjunctive treatment of refractory complex partial seizures in pediatric patients below the age of 2 and as monotherapy for the treatment of infantile spasms in pediatric patients below the age of 1 month have not been established. duration of therapy for infantile spasms was evaluated in a post hoc analysis of a canadian pediatric epilepsy network (cpen) study of developmental outcomes in infantile spasms patients. this analysis suggests that a total duration of 6 months of vigabatrin therapy is adequate for the treatment of infantile spasms. however, prescribers must use their clinical judgment as to the most appropriate duration of use [see clinical studies (14.2)].   abnormal mri signal changes and intramyelinic edema (ime) in infants and young children being treated with sabril have been observed [see warnings and precautions (5.3, 5.4)] . juvenile animal toxicity data oral administration of vigabatrin (5, 15, or 50 mg/kg/day) to young rats during the neonatal and juvenile periods of development (postnatal days 4-65) produced neurobehavioral (convulsions, neuromotor impairment, learning deficits) and neurohistopathological (brain gray matter vacuolation, decreased myelination, and retinal dysplasia) abnormalities. the no-effect dose for developmental neurotoxicity in juvenile rats (the lowest dose tested) was associated with plasma vigabatrin exposures (auc) substantially less than those measured in pediatric patients at recommended doses. in dogs, oral administration of vigabatrin (30 or 100 mg/kg/day) during selected periods of juvenile development (postnatal days 22-112) produced neurohistopathological abnormalities (brain gray matter vacuolation). neurobehavioral effects of vigabatrin were not assessed in the juvenile dog. a no-effect dose for neurohistopathology was not established in juvenile dogs; the lowest effect dose (30 mg/kg/day) was associated with plasma vigabatrin exposures lower than those measured in pediatric patients at recommended doses [see warnings and precautions (5.4)]. clinical studies of vigabatrin did not include sufficient numbers of patients aged 65 and over to determine whether they responded differently from younger patients. vigabatrin is known to be substantially excreted by the kidney, and the risk of toxic reactions to this drug may be greater in patients with impaired renal function. because elderly patients are more likely to have decreased renal function, care should be taken in dose selection, and it may be useful to monitor renal function. oral administration of a single dose of 1.5 g of vigabatrin  to elderly (≥65 years) patients with reduced creatinine clearance (<50 ml/min) was associated with moderate to severe sedation and confusion in 4 of 5 patients, lasting up to 5 days. the renal clearance of vigabatrin was 36% lower in healthy elderly subjects (≥65 years) than in young healthy males. adjustment of dose or frequency of administration should be considered. such patients may respond to a lower maintenance dose [see dosage and administration (2.4) and clinical pharmacology (12.3 )] . other reported clinical experience has not identified differences in responses between the elderly and younger patients. dose adjustment, including initiating treatment with a lower dose, is necessary in pediatric patients 2 years of age and older and adults with mild (creatinine clearance >50 to 80 ml/min), moderate (creatinine clearance >30 to 50 ml/min) and severe (creatinine clearance >10 to 30 ml/min) renal impairment [see dosage and administration (2.4) and clinical pharmacology (12.3)] . vigabatrin is not a controlled substance. vigabatrin did not produce adverse events or overt behaviors associated with abuse when administered to humans or animals. it is not possible to predict the extent to which a cns active drug will be misused, diverted, and/or abused once marketed. consequently, physicians should carefully evaluate patients for history of drug abuse and follow such patients closely, observing them for signs of misuse or abuse of vigabatrin (e.g., incrementation of dose, drug-seeking behavior). following chronic administration of vigabatrin to animals, there were no apparent withdrawal signs upon drug discontinuation.  however, as with all aeds, vigabatrin should be withdrawn gradually to minimize increased seizure frequency [see warnings and precautions (5.6)] .

Australia - English - Department of Health (Therapeutic Goods Administration)

sanofi-aventis australia pty ltd - vigabatrin, quantity: 500 mg - powder, oral - excipient ingredients: povidone - for the treatment of epilepsy which is not satisfactorily controlled by other antiepileptic drugs.

New Zealand - English - Medsafe (Medicines Safety Authority)

pharmacy retailing (nz) ltd t/a healthcare logistics - vigabatrin 500mg;   - film coated tablet - 500 mg - active: vigabatrin 500mg   excipient: magnesium stearate microcrystalline cellulose opadry white oy-s-7298 povidone sodium starch glycolate - for the treatment of epilepsy which is not satisfactorily controlled by other antiepileptic medicines. for the management of infantile spasms (west syndrome). monotherapy for the treatment of partial seizure.

New Zealand - English - Medsafe (Medicines Safety Authority)

pharmacy retailing (nz) ltd t/a healthcare logistics - vigabatrin 500mg;   - powder for oral solution - 500 mg - active: vigabatrin 500mg   excipient: povidone - for the treatment of epilepsy which is not satisfactorily controlled by other antiepileptic medicines. for the management of infantile spasms (west syndrome). monotherapy for the treatment of partial seizure.

Australia - English - Department of Health (Therapeutic Goods Administration)

sanofi-aventis australia pty ltd - vigabatrin -

South Africa - English - South African Health Products Regulatory Authority (SAHPRA)

sanofi-aventis south africa (pty) ltd - tablet - see ingredients - each tablet contains vigabatrin 500 mg

Malta - English - Medicines Authority

sanofi s.r.l viale l. bodio, 37/b 20158, milan, italy - vigabatrin - film-coated tablet - vigabatrin 500 mg - antiepileptics

Ireland - English - HPRA (Health Products Regulatory Authority)

sanofi-aventis ireland limited t/a sanofi - vigabatrin - film-coated tablet - 500 milligram(s) - fatty acid derivatives; vigabatrin