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Fluphenazine Drug Level (Blood)

Fluphenazine Drug Level (Blood)

Does this test have other names?

No.

What is this test?

This blood test measures the amount of the drug fluphenazine in your blood. Fluphenazine is an antipsychotic medication used to treat schizophrenia and Tourette's syndrome. Fluphenazine helps you think more clearly and improves social exchanges, paranoia, and disposition. It can also help reduce involuntary movement related to Huntington's chorea. The drug can take up to six weeks to be fully effective.

Fluphenazine also has potentially severe side effects and should be taken with caution. Older adults who use this drug for dementia are at a higher risk of dying. It is not safe to use this drug if you are allergic to it. You should not take this drug if you have brain problems, a low blood cell count, liver disease, or if you are breastfeeding. 

Why do I need this test?

You may have this test if it's possible that you have overdosed on fluphenazine or if you have dangerous side effects of the drug. These include:

  • Tightness in your chest

  • Itchiness

  • Bluish skin

  • Seizures

  • Swelling in your face, lips, tongue, or throat

  • Extreme dizziness or fainting

  • Inability to urinate

  • Fatigue

  • Rash

  • Wheezing

  • Fever

If you experience any of these symptoms or believe you have overdosed on the drug, call your doctor immediately. 

What do my test results mean?

Many things may affect your lab test results. These include the method each lab uses to do the test. Even if your test results are different from the normal value, you may not have a problem. To learn what the results mean for you, talk with your health care provider.

The normal range of fluphenazine in the blood if taken as prescribed is 0.3 to 3 nanograms per milliliter (ng/mL).

You can have side effects at any dose of fluphenazine. 

How is this test done?

The test requires a blood sample, which is drawn through a needle from a vein in your arm.

Does this test pose any risks?

Taking a blood sample with a needle carries risks that include bleeding, infection, bruising, or feeling dizzy. When the needle pricks your arm, you may feel a slight stinging sensation or pain. Afterward, the site may be slightly sore.

What might affect my test results?

No other factors are likely to affect your test results.

How do I get ready for this test?

You don't need to prepare for this test. 

 
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