HOW TO USE: Take this medication by mouth once daily or as directed by your doctor. You may take it with food if stomach upset occurs. Swallow the tablet whole. Do not crush or chew the tablet, which can destroy the long action of the drug and increase side effects. Dosage is based on your weight, medical condition, and response to therapy. Use this medication regularly in order to get the most benefit from it. Remember to use it at the same time each day to keep the amount of medication in your blood constant. If this medication is used for seizures, do not stop taking it without consulting your doctor. Your condition may become worse if the drug is suddenly stopped. Your dose may need to be gradually decreased. Divalproex sodium does not relieve acute migraine headaches. Take other medications as directed by your doctor for acute attacks. Inform your doctor if your condition does not improve.

SIDE EFFECTS: See also Warning section. Diarrhea, dizziness, drowsiness, hair loss, blurred/double vision, change in menstrual periods, ringing in the ears, shakiness (tremor), unsteadiness, weight changes may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly. Tell your doctor immediately if any of these serious side effects occur: mental/mood changes, signs of infection (e.g., fever, persistent sore throat). Tell your doctor immediately if any of these unlikely but serious side effects occur: chest pain, easy bruising/unexplained bleeding, fast/irregular heartbeat, swelling of hands/feet, uncontrolled eye movement (nystagmus). Tell your doctor immediately if any of these highly unlikely but very serious side effects occur: dark urine, persistent nausea/vomiting, severe stomach/abdominal pain, yellowing eyes or skin. Severe (sometimes fatal) brain disorder (encephalopathy) has rarely occurred, particularly in patients with certain metabolic disorders (urea cycle disorders). Tell your doctor immediately if you develop unexplained weakness and vomiting or sudden mental changes. A serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction include: rash, itching, swelling, severe dizziness, trouble breathing. If you notice other effects not listed above, contact your doctor or pharmacist.