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Zarontin, also known by its drug name, Ethosuximide, is a prescription medication approved by the Food and Drug Administration (FDA) in 1960 for the treatment of absence seizures. Zarontin is frequently prescribed for children with childhood absence epilepsy. Zarontin is not used to treat partial or tonic-clonic seizures.

Zarontin should not be used in people with a history of hypersensitivity to succinimides. Zarontin must be used with great caution in people with a history of blood disorders, lupus, suicidal thoughts, or dysfunctions of the liver or kidneys. Zarontin may not be suitable for use by women who are pregnant or breastfeeding.

Zarontin is a member of the succinimide class of anticonvulsants, which are drugs that prevent seizures. It is believed that Zarontin works in cases of epilepsy by inhibiting nerve signals.

How do I take it?
Zarontin may be taken orally as a capsule or a syrup one or more times each day.

Do not stop taking Zarontin suddenly. If you decide to stop taking Zarontin, consult your physician for a plan to taper off gradually.

Always follow your doctor’s instructions exactly when taking Zarontin.

In one study, 95 percent of the participants who took Ethosuximide (Zarontin) had their number of seizures reduced by 50 percent or more. As many as 50 percent of participants who took Ethosuximide had their number of seizures reduced by 90 percent or more.

Side effects
Common side effects of Zarontin include headache, drowsiness, dizziness, constipation, vomiting, nausea, loss of appetite, difficulty focusing, memory problems, night terrors, near-sightedness, unusual hair growth, vaginal bleeding, and overgrowth of the gums. Some side effects may fade after a few days or weeks on Zarontin.

Call your doctor if you experience muscle or joint pain, a skin rash, or signs of infection such as fever, sore throat, and cough while taking Zarontin.

Rarely, some people experience neurological symptoms including depression, suicidal thoughts, or symptoms of psychosis such as hallucinations and losing contact with reality while taking Zarontin. Contact your doctor if you experience these side effects.

Many drugs can cause allergic reactions that, in the most serious cases, can result in death. Seek immediate medical help if you experience signs of a severe allergic reaction such as difficulty breathing or swelling in the face, throat, eyes, lips or tongue.

Zarontin (Ethosuximide) for Epilepsy Questions

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