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Pregabalin/Creatinine Ratio, Urine

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

A urine test that compares the amount of pregabalin with creatinine to help evaluate drug exposure and adherence.

Quick summary

["This urine ratio can help your clinician assess whether pregabalin levels are consistent with your prescribed treatment."]

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

Key facts at a glance

LOINC
87764-7
Short code
Pregabalin/Creat Ur Cfm
Synonyms
Pregabalin/Creat Ur Cfm
Category
kidney
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
confirm
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

What is this test?

The pregabalin/creatinine ratio is a calculated urine test. It compares the amount of the seizure medicine pregabalin in urine with creatinine, a substance used to account for how concentrated the urine is.

Why might I need this test?

Your clinician may order this test to help assess medication exposure, check adherence, or investigate whether pregabalin levels appear unexpectedly low or high. It may be especially relevant during dose changes or when side effects affect taking the medicine as prescribed.

How is the test performed?

A urine specimen is collected and tested in the laboratory. The laboratory measures or estimates pregabalin and creatinine and calculates their ratio.

How do I prepare for the test?

Follow the collection instructions provided by your clinician, including any timing related to your pregabalin dose. Do not change or skip doses unless your clinician instructs you to do so, and tell the laboratory about other medicines you take.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Urine Pregabalin/Creatinine Ratio

Frequently asked questions

Does this test show how much pregabalin is in my blood?
No. It is calculated from a urine sample and reflects urinary drug exposure relative to creatinine, not a direct blood concentration.
Can I take my pregabalin before the urine collection?
Follow your clinician's instructions because the timing of the dose and collection can affect the result. If no timing instructions were provided, ask the ordering clinician or laboratory before collecting the sample.
Why is creatinine included in the result?
Creatinine helps account for variations in urine concentration. Using a ratio makes the pregabalin measurement more useful when urine is more or less concentrated than expected.
  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