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Serum or Plasma Concentration of Prochlorperazine (Drug Level)

Published: August 9, 2026Updated: August 16, 2026

This test measures the amount of prochlorperazine, a medication used to treat nausea, vomiting, and certain mental health conditions, in your blood.

Quick summary

["Knowing your drug levels helps your healthcare provider monitor your dose and ensure safety."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
3510-5
Short code
Prochlorperazine Ur Ql
Synonyms
Prochlorperazine Ur Ql
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your doctor may order this test if you’re taking prochlorperazine to check if your dose is working properly or if you’re experiencing side effects. It can also help avoid overdoses or drug interactions.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into your arm or vein to draw blood. It usually takes a few minutes, and you may feel a brief pinch.

What the Results Mean

Results help your doctor adjust your medication if your levels are too high or too low. They don’t provide a standard range since levels vary by individual and dose.

Common Reasons for Testing

This test is often done when you first start taking prochlorperazine, after changes in your dose, or if you’re experiencing symptoms like dizziness, confusion, or unusual movements.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Prochlorperazine Level

Frequently asked questions

How high or low your prochlorperazine levels are can affect your health. Too much can cause serious side effects, while too little may mean the drug isn’t working effectively.
Your results will be reviewed by your healthcare provider to guide treatment decisions. They may recommend adjustments to your dose or medication.
What does a ‘therapeutic range’ mean for this test?
There isn’t a single ‘therapeutic range’ for prochlorperazine because it depends on your specific condition, dose, and how your body processes the drug. Your doctor will interpret results based on your individual needs.
Can I eat or drink before this blood test?
You can eat and drink normally before the test, unless your doctor has instructed otherwise. This test only requires a blood sample, so fasting isn’t needed.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy