Zarontin
Ethosuximide is a succinimide anticonvulsant, used mainly in absence seizures. It is sold by Pfizer under the name Zarontin®. more...
Adverse Effects
Central Nervous System
Common
- drowsiness
- mental confusion
- insomnia
- nervousness
- headache
- euphoria
- ataxia
- hiccups
- impaired concentration
- irritability
- hyperactivity
- loss of taste
- night terrors
Rare
- paranoid psychosis
- increased libido
- exacerbation of depression
Gastrointestinal
- dyspepsia
- vomiting
- nausea
- cramps
- constipation
- diarrhea
- stomach pain
- loss of appetite
- weight loss
- gingival hyperplasia
- swelling of tongue
Genitourinary
- microscopic hematuria
- vaginal bleeding
Hematopoietic
The following can occur with or without bone marrow loss:
- pancytopenia
- agranulocytosis
- leukopenia
- eosinophilia
Integumentary
- urticaria
- systemic lupus erythematosus
- Stevens-Johnson syndrome
- hirsutism
- pruritic erythematous rashes
Ocular
Complications
Drug Interactions
Valproates can either decrease or increase the levels of ethosuximide; However, combinations of valproates and ethosuximide had a greater Protective Index than either drug alone.
It may elevate serum phenytoin levels.
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