Valbenazine is used to treat symptoms of tardive dyskinesia, a nervous system disorder. Tardive dyskinesia causes repetitive uncontrolled muscle movements, usually in the face (chewing, lip smacking, frowning, tongue movement, blinking or eye movement). Valbenazine is not a permanent cure for this condition.

Valbenazine may also be used for purposes not listed in this medication guide.

You should not use valbenazine if you are allergic to it.

Tell your doctor if you have ever had:

• heart disease;
• long QT syndrome or other heart rhythm disorder;
• congestive heart failure;
• a heart attack; or
• liver disease.

It is not known whether this medicine will harm an unborn baby. Tell your doctor if you are pregnant.

Do not breastfeed while using this medicine and for at least 5 days after your last dose.

Not approved for use by anyone younger than 18 years old.

Use Ingrezza Sprinkle (Oral) exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have:

• extreme drowsiness;
• fast, slow, or uneven heartbeats;
• pounding heartbeats or fluttering in your chest;
• shortness of breath;
• a light-headed feeling, like you might pass out; or
• Parkinson-like symptoms--tremors, shaking, stiffness, problems with balance or walking.

Common side effects may include:

• headache, dizziness, drowsiness;
• problems with balance or coordination;
• dry mouth;
• feeling restless;
• constipation; or
• blurred vision.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Avoid driving or hazardous activity until you know how this medicine will affect you. Dizziness or drowsiness can cause falls, accidents, or severe injuries.