This is an index of side effect / adverse reaction reports (a.k.a. adverse event reports) related to Zarontin (Ethosuximide) and submitted to the FDA during the sample period of about a year. The information is not vetted and should not be considered as verified clinical evidence.
Reports by Event Outcome
All Cases (17)
Life Threatening Events (1)
Disability (1)
Reports by Reaction Type
Convulsion (4),
Drug Ineffective (3),
Poor Quality Drug Administered (3),
Atelectasis (2),
Pyrexia (2),
Mycoplasma Infection (2),
Abdominal Discomfort (2),
Stevens-Johnson Syndrome (2),
Oral Infection (2),
Toxic Epidermal Necrolysis (2),
NO Adverse Event (2),
Systemic Inflammatory Response Syndrome (2)
Possible Zarontin side effects in 7 year old male
Reported by a health professional (non-physician/pharmacist) from France on 2012-08-09
Patient: 7 year old male
Reactions: Lymphadenopathy, Dyspnoea, Lupus-Like Syndrome, Vena Cava Thrombosis, Pancytopenia, Pulmonary Embolism, Pyrexia
Adverse event resulted in: life threatening event, hospitalization
Drug(s) suspected as cause:
Zarontin
Possible Zarontin side effects in male
Reported by a lawyer from United States on 2012-06-29
Patient: male, weighing 41.0 kg (90.2 pounds)
Reactions: Atelectasis, Oral Infection, Toxic Epidermal Necrolysis, Mycoplasma Infection, Abdominal Discomfort, Lymphadenitis, Systemic Inflammatory Response Syndrome, Stevens-Johnson Syndrome
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Zarontin
Dosage: one 250mg capsule every morning and 2 capsules every night
Administration route: Oral
Indication: Epilepsy
Start date: 2010-11-28
End date: 2010-12-16
Zarontin
Dosage: 250 mg, 2x/day
Administration route: Oral
Indication: Partial Seizures
Start date: 2010-11-23
End date: 2010-11-27
Other drugs received by patient: Depakote; Ciprodex
Possible Zarontin side effects in male
Reported by a lawyer from United States on 2012-06-22
Patient: male, weighing 41.0 kg (90.2 pounds)
Reactions: Atelectasis, Abdominal Discomfort, Oral Infection, Toxic Epidermal Necrolysis, Systemic Inflammatory Response Syndrome, Stevens-Johnson Syndrome, Mycoplasma Infection
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Zarontin
Dosage: 750 mg (250mg capsules, 1 capsule every morning and 2 capsules every night)
Administration route: Oral
Indication: Partial Seizures
Start date: 2010-11-22
End date: 2010-12-16
Zarontin
Indication: Epilepsy
Other drugs received by patient: Depakote; Ciprodex
Possible Zarontin side effects in 9 year old male
Reported by a pharmacist from United States on 2012-06-01
Patient: 9 year old male, weighing 38.6 kg (84.8 pounds)
Reactions: Speech Disorder, Confusional State, Memory Impairment
Adverse event resulted in: disablity
Drug(s) suspected as cause:
Zarontin
Dosage: 300mg -5ml- twice daily po
Administration route: Oral
Indication: Petit MAL Epilepsy
Start date: 2010-02-10
End date: 2012-05-31
Keppra
Dosage: 1150mg twice daily po
Administration route: Oral
Start date: 2011-08-13
End date: 2012-05-31
Possible Zarontin side effects in female
Reported by a physician from United States on 2012-04-24
Patient: female, weighing 74.8 kg (164.6 pounds)
Reactions: Drug Ineffective
Drug(s) suspected as cause:
Zarontin
Other drugs received by patient: Topamax; Lacosamide
Possible Zarontin side effects in male
Reported by a pharmacist from United States on 2012-04-10
Patient: male
Reactions: Drug Hypersensitivity, Rash
Drug(s) suspected as cause:
Zarontin
Possible Zarontin side effects in female
Reported by a consumer/non-health professional from United States on 2012-03-22
Patient: female, weighing 74.8 kg (164.6 pounds)
Reactions: Drug Ineffective
Drug(s) suspected as cause:
Zarontin
Other drugs received by patient: Lacosamide; Topamax
Possible Zarontin side effects in male
Reported by a pharmacist from United States on 2012-03-05
Patient: male
Reactions: Poor Quality Drug Administered, Convulsion
Drug(s) suspected as cause:
Zarontin
Possible Zarontin side effects in male
Reported by a pharmacist from United States on 2012-02-27
Patient: male
Reactions: Poor Quality Drug Administered, Convulsion
Drug(s) suspected as cause:
Zarontin
Possible Zarontin side effects in male
Reported by a pharmacist from United States on 2012-02-02
Patient: male
Reactions: Type 1 Diabetes Mellitus
Drug(s) suspected as cause:
Zarontin
Possible Zarontin side effects in male
Reported by a pharmacist from United States on 2012-01-17
Patient: male
Reactions: Poor Quality Drug Administered, Convulsion
Drug(s) suspected as cause:
Zarontin
Possible Zarontin side effects in female
Reported by a consumer/non-health professional from United States on 2011-12-16
Patient: female
Reactions: Malaise
Drug(s) suspected as cause:
Zarontin
Possible Zarontin side effects in male
Reported by a consumer/non-health professional from United States on 2011-12-14
Patient: male
Reactions: Vomiting, Retching
Drug(s) suspected as cause:
Zarontin
Possible Zarontin side effects in 73 year old female
Reported by a health professional (non-physician/pharmacist) from United States on 2011-11-23
Patient: 73 year old female
Reactions: Grand MAL Convulsion, Pyrexia, Muscle Disorder, Convulsion
Drug(s) suspected as cause:
Zarontin
Dosage: unk
Start date: 1964-01-01
Dilantin-125
Dosage: unk
Indication: Grand MAL Convulsion
Start date: 1947-01-01
Possible Zarontin side effects in female
Reported by a physician from France on 2011-11-15
Patient: female
Reactions: NO Adverse Event
Drug(s) suspected as cause:
Zarontin
Other drugs received by patient: Lamictal
Possible Zarontin side effects in 6 year old female
Reported by a physician from France on 2011-11-08
Patient: 6 year old female
Reactions: NO Adverse Event
Drug(s) suspected as cause:
Zarontin
Other drugs received by patient: Lamictal
Possible Zarontin side effects in female
Reported by a consumer/non-health professional from United States on 2011-10-24
Patient: female
Reactions: Drug Ineffective
Drug(s) suspected as cause:
Zarontin
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