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Levamisole concentration in serum/plasma

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

This test measures the amount of levamisole, a medication used to treat certain immune disorders, in your blood.

Quick summary

["Levamisole levels help assess your response to treatment and monitor potential side effects."]

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

Key facts at a glance

LOINC
59293-1
Short code
Levamisole SerPl-mCnc
Synonyms
Levamisole SerPl-mCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What Is Levamisole?

Levamisole is an immune-modulating drug sometimes prescribed for conditions like autoimmune diseases or parasitic infections. It works by boosting the immune system or targeting specific parasites. Your doctor may order this test if you’re taking levamisole for treatment or if monitoring its effects is needed.

Why Might You Need This Test?

A levamisole test may be ordered to check if the drug is working properly, detect side effects (such as low white blood cell counts), or evaluate how your body is processing it. It’s also used in research or specialized clinical settings.

What to Expect Before the Test

No special preparation is usually required, but you may need to fast for 8–12 hours before the blood draw if instructed by your healthcare provider. Bring your medication list to avoid missing doses.

What Happens During the Test?

A healthcare professional will draw blood from a vein in your arm. The process is quick and typically painless. The sample is sent to a lab for analysis using a sensitive immunoassay method to detect levamisole.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Levamisole Level

Frequently asked questions

Low or high levamisole levels may indicate improper dosing, drug resistance, or adverse reactions. Your doctor will interpret results in the context of your medical history, symptoms, and other tests.
This test may not have standard reference ranges because levamisole is rarely ordered as a standalone test outside specialized clinical scenarios. Results are compared to your baseline or treatment goals.
How long will I need to wait for results?
Results are usually available within 1–3 business days, depending on lab processing times. Your doctor will discuss them with you during your follow-up visit.
Can I take levamisole if I have kidney or liver problems?
Your doctor will adjust your levamisole dose based on kidney/liver function and test results. Never stop taking it without medical guidance, as it may affect your immune system or cause serious side effects.
  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