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Clozapine (Clozaril) Blood Test

* This is not a home test kit. You will need to visit a local lab for testing.

Clozapine (Clozaril) Blood Test

The Purpose of a C3 Complement Blood Test

Clozapine (brand name Clozaril®) is an antipsychotic that is typically prescribed as a treatment for schizophrenia or bipolar disorder. Usually available in tablet or liquid form, this medication is powerful, but it comes with a risk of serious side effects, including:

  • An abnormal blood condition
  • Dizziness or confusion
  • Flu-like symptoms (such as sweating, nausea, or vomiting)
  • Bleeding or bruising
  • Seizures
  • Myocarditis or cardiomyopathy

If you have been prescribed clozapine, you’ll need to monitor the medication carefully. This is when a clozapine blood test can help.

Clozapine (Clozaril), Serum (1769)
Clozapine (Clozaril), Serum (706440)

What Does Clozapine Blood Work Measure?

This test will assess your clozapine levels to make sure they aren’t elevated, which raises your risk of side effects or prevents the medication from working properly.

Who Should Take Clozapine Labs?

You’ll want to undergo regular clozapine lab monitoring as you start taking this medication. Do so as often as recommended by your physician to ensure your levels aren’t toxic. You should also see your doctor and be tested if you are experiencing any side effects, as listed above.

Clozapine Blood Monitoring Preparation

There are no special instructions you need to follow prior to your blood test for clozapine.

Clozapine Blood Test Results

Typically, clozapine starts to have a therapeutic effect beginning at around 100 mcg/L. Toxicity usually begins once levels go above 900 mcg/L. Your medication may need to be adjusted or stopped altogether if your levels are too high.

Where Can I Get a Clozaril Blood Test Near Me?

With more than 400 tests to choose from in our online shop, it’s easy to get the answers you need to guide your healthcare decisions. You can order clozapine labs or any of our other drug and alcohol tests with this simple process:

Step 1: Select the test of your choice from Personalabs and purchase it, verifying that you don’t need your doctor’s approval beforehand (this depends on the state where you live). You’ll also need to download the lab order that comes with the test.

Step 2: Schedule your blood draw at a Labcorp or Quest Diagnostics facility. Our partnerships with these two top lab companies give you access to more than 4,000 locations across the country. Just use our locator tool to find the lab nearest you.

Step 3: Bring the test order to the lab and complete your testing.

Step 4: Review the results in your confidential Personalabs account within 2 to 10 business days after your test date. You can also opt to contact us if you need results back by a specific time, and we can contact the lab for you. Our knowledgeable team can also answer any of your questions; we’re standing by and ready to help you.

A clozapine lab is crucial for maintaining your health. It’s just one of the many ways you can count on Personalabs as your wellness partner. We’ll help you get the information that can inform and empower your healthcare and lifestyle choices. Browse our wide range of tests to get started.

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Order Your Test

Create an account, choose your tests, checkout securely, generate your lab order



Generate & Print Out Lab Order

Our physician network will approve your order within 2-4hrs.



Visit the Lab

The test price decides which lab you will visit: Quest or Labcorp. Find a location in your area.



Get Your Results

Results can be provided in as little as 24-48 hrs. For more complex tests, please contact us for turn around times.

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