Ethosuximide should be stored at room temperature, away from moisture and heat. Store the capsules in an airtight container.
Keep ethosuximide and all medications out of the reach of children.
What Should I Do If I Miss a Dose?
If you do not take your ethosuximide as scheduled, take your missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not take a double dose.
Is There a Generic Version of Ethosuximide?
Currently, both brand-name and generic versions of ethosuximide are licensed for sale (see Generic Zarontin).
Who Makes It?
Currently, ethosuximide is made by Pfizer.
Strengths of Ethosuximide
The capsules are available in one strength -- Ethosuximide 250 mg capsules. Ethosuximide syrup, containing 250 mg of ethosuximide per 5 mL (250 mg per teaspoonful), is also available. Brand-name ethosuximide syrup is raspberry flavored.
Written by/reviewed by: Kristi Monson, PharmD;Arthur Schoenstadt, MD
Last reviewed by: KristiMonson, PharmD;
List of references (click here):
Zarontin [package insert]. New York, NY: Pfizer, Inc.;2009 April.
Food and Drug Administration, Center for Drug Evaluation and Research. Electronic orange book: Approved drug products with therapeutic equivalence evaluations. FDA Web site. Available at: http://www.fda.gov/cder/ob/. Accessed June 19, 2007.
Briggs GG, Freeman RK, Yaffe SJ. Drugs in Pregnancy and Lactation. 7th ed. Philadelphia (PA): Lippincott Williams & Wilkins;2005.
National Library of Medicine (US). Drugs and Lactation Database (LactMED). NLM Web site. Available at: http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT. Accessed June 19, 2007.
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