What is Mysoline?

• Mysoline is used to control seizures. The exact way that it works is unknown. However, it is believed that Mysoline alters the chemical impulses in the brain that cause seizures.
• Mysoline may also be used for purposes other than those listed in this medication guide.

What is the most important information I should know about Mysoline?

• Do not stop taking your medication even if you feel better. It is important to continue taking Mysoline to prevent your seizures from recurring.
• Carry or wear a medical identification tag to let others know that you are taking this medicine in the case of an emergency.
• Use caution when driving, operating machinery, or performing other hazardous activities. Mysoline may cause dizziness or drowsiness. If you experience dizziness or drowsiness, avoid these activities.

How should I take Mysoline?

• Take Mysoline exactly as directed by your doctor. If you do not understand these directions, ask your pharmacist, nurse, or doctor to explain them to you.
• Take each dose of Mysoline with a full glass of water.
• Mysoline can be taken with food if it upsets your stomach.
• Shake the liquid form of Mysoline well before measuring a dose. To ensure that you get a correct dose, measure the suspension with a special dose-measuring spoon or cup, not with a regular tablespoon. If you do not have a dose-measuring device, ask your pharmacist where you can get one.
• Carry or wear a medical identification tag to let others know that you are taking this medicine in the case of an emergency.
• Do not stop taking your medication, even if you feel better. It is important to continue taking Mysoline to prevent your seizures from recurring.
• Store Mysoline at room temperature away from moisture and heat.

What are the possible side effects of Mysoline?

• If you experience any of the following serious side effects, stop taking Mysoline and seek emergency medical attention:
  • an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives);
  • a rash;
  • worsening of seizures; or
  • a fever.
• Other, less serious side effects may be more likely to occur. Continue to take Mysoline and talk to your doctor if you experience
  • dizziness, poor coordination, or drowsiness;
  • blurred or double vision;
  • irregular back-and-forth movements of the eyes; or
  • nausea and vomiting.
• Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.