Zarontin Syrup (Ethosuximide)

Zarontin Syrup

(Brand Option)

Prescription RequiredPrescription Required
FormulationFormulation: Syrup
Select Dosage

Select Quantity



(Generic Alternative)

Prescription RequiredPrescription Required

This generic medication is not available at the moment.

Norton Shopping Guarantee

Zarontin syrup (ethosuximide) is indicated for the control of absence (petit mal) epilepsy. It is used alone or in combination with other medications to treat absence seizures in both adults and children.

Zarontin is an anti-epileptic medication, also known as an anticonvulsant. It works by helping to keep brain cells from becoming overactive, thus preventing or reducing the occurrence of absence seizures.


  • Use the measuring device that comes with the medication or a medication spoon. Do not use a kitchen teaspoon or tablespoon, as these can be inaccurate.
  • Shake the bottle well before each use. This will ensure that the medication is mixed evenly.
  • Take Zarontin syrup with or without food. However, taking it with food may help to reduce stomach upset.
  • Tell your Zarontin syrup about all the medications you are taking, including prescription and over-the-counter medications, vitamins, and herbal supplements. Zarontin syrup can interact with other medications.


  • Do not give Zarontin syrup to anyone else. This medication is only for the person it was prescribed for.
  • Do not stop taking Zarontin syrup without talking to your Zarontin syrup. Stopping this medication suddenly can increase your risk of seizures.
  • Do not take more Zarontin syrup than what is prescribed for you. Taking too much of this medication can be dangerous.
  • Do not give Zarontin syrup to a child without talking to their Zarontin syrup. Zarontin syrup is not for everyone, and it is important to make sure it is safe for your child to take.

Common side effects:

  • Stomach upset or pain
  • Nausea or vomiting
  • Loss of appetite
  • Drowsiness or dizziness
  • Headache
  • Fatigue or weakness
  • Mood changes or irritability
  • Sleep disturbances
  • Weight loss

Serious side effects:

  • Allergic reactions: Seek immediate medical attention if you experience symptoms such as rash, itching, swelling (especially of the face, tongue, or throat), severe dizziness, or trouble breathing

This is not an exhaustive list, and other side effects may occur. If you experience any unusual or severe side effects while taking Zarontin syrup, contact your healthcare provider for medical advice.

Inform your Zarontin syrup about any allergies you have to ethosuximide or any ingredients in the syrup.

Be aware of an increased risk of suicidal thoughts or actions, especially during the first few months of treatment or with any change in dose. Report any symptoms of depression or suicidal ideation to your Zarontin syrup immediately.

Inform your Zarontin syrup about any history of kidney or liver problems, as Zarontin may affect these organs.

Zarontin may cause drowsiness and dizziness. Avoid driving, operating machinery, or activities requiring alertness until you can do them safely.

Be aware of potential mood swings, aggression, hyperactivity, or confusion, especially in children. Report any such changes to your Zarontin syrup.

Abruptly stopping Zarontin can cause withdrawal symptoms like anxiety, seizures, or tremors. Discuss tapering the dose gradually with your Zarontin syrup before discontinuing use.

In some cases, Zarontin may increase the frequency of certain types of seizures. Your Zarontin syrup will monitor your response to the medication.

Brand Name:

Zarontin Syrup

Generic name:


Other Names:

Zarontin Syrup

Strength(s): 250mg/5mL
Quantities Available: 500


Important Information
The information above for Zarontin Syrup (Ethosuximide) was provided to by third parties. In no way should this information substitute for the advice of a physician. Consult a doctor or qualified health care professional if you have any medical concerns. widget logo