Buspirone treats anxiety disorders. Avoid drinking large amounts of grapefruit juice while taking buspirone. It may take 4 weeks to see results.

Vanspar Overview


Buspirone is a prescription medication used to treat the symptoms of anxiety disorders. Buspirone belongs to a group of drugs called anxiolytics. It is unknown exactly how buspirone works, but some studies have shown that it works by changing the activity of certain neurotransmitters in the brain, serotonin and dopamine

This medication comes in tablet form and is usually taken 2 or 3 times a day. You may take buspirone either with or without food, but take it consistently, either always with food or always without food.

Common side effects of buspirone include nausea, headache, and lightheadedness.

This medication can cause blurred vision, drowsiness, and dizziness. Do not drive or operate heavy machinery until you know how buspirone affects you.

Patient Ratings for Vanspar

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  • Other
  • Anxiety Disorders
  • Depressive Disorder
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Vanspar Cautionary Labels


Uses of Vanspar

Buspirone is a prescription medication used to treat anxiety disorders or in the short-term treatment of anxiety symptoms. 

This medication may be prescribed for other uses. Ask your doctor or pharmacist for more information.

Vanspar Drug Class

Vanspar is part of the drug class:

Side Effects of Vanspar

Serious side effects have been reported with buspirone. See the "Drug Precautions" section.

Common side effects of buspirone include the following:

  • dizziness
  • drowsiness
  • blurred vision
  • nausea
  • nervousness
  • headache
  • lightheadedness
  • excitement
  • fatigue

This is not a complete list of buspirone side effects. Ask your doctor or pharmacist for more information.

Tell your doctor is you have any side effect that bothers you or that does not go away.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.