Methadone, Serum or Plasma

Marker

Serum or plasma

Drug & Alcohol Testing
1 provider available
Starting at
$239

Walk-In Lab

Lowest PriceOnline

Methadone Blood Test

The Methadone Blood Test checks the amount of methadone in your blood to make sure the medication is at a safe level, helping doctors manage treatment for pain or opioid addiction while preventing side effects or overdose risks.

Updated 7/22/2025