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Cyclosporine Blood Level (Pharmacokinetic Monitoring)

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

This test measures the amount of cyclosporine, a medication used to prevent organ rejection after a transplant or to treat certain autoimmune conditions, in your blood.

Quick summary

["Your cyclosporine level helps doctors ensure you’re taking the right dose for your condition."]

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

Key facts at a glance

LOINC
110879-4
Short code
cycloSPORINE Msmt Bld
Synonyms
cycloSPORINE Msmt Bld
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your healthcare provider may order this test if you’re taking cyclosporine to manage a condition like organ transplant rejection, rheumatoid arthritis, or psoriasis. It helps monitor whether your dose is effective and safe.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into your arm or vein for a blood draw, similar to other routine blood tests. The process is quick and usually painless.

What the Test Results Mean

Results are used to guide your medication dose. Too high or too low levels can affect how well your body responds to the drug. Your doctor will discuss findings with you.

Common Reasons for Testing

Tests may be done regularly to check for side effects, adjust doses, or ensure the drug stays within safe ranges for your condition.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Cyclosporine Level

Frequently asked questions

Your cyclosporine level helps prevent complications like kidney damage or infections by ensuring the medication is at an optimal therapeutic range.
This test is critical for patients on long-term cyclosporine therapy, as it helps balance effectiveness and safety.
What happens if my cyclosporine level is too high or too low?
High levels may cause side effects like kidney problems, high blood pressure, or increased risk of infections. Low levels might mean the drug isn’t working as intended, requiring dose adjustments.
Can I eat or drink before this test?
You can eat and drink normally unless your doctor specifies otherwise. No fasting is required for this test.
  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