When to get tested?
Typically, doctors prefer this test for a number of reasons, such as:
- After the beginning of the phenobarbital treatment
- At regular intervals of the treatment
- If your healthcare provider intends to change the dose of the medicine
This test is also recommended if you are having any side effects of the treatment. The side effects include:
- Drowsiness
- Headache
- Anxiety
- Depression
- confusion
- Nausea
- Sweating
Extreme side effects are:
- Sudden high fever
- Seizure
- Severe rash
- Breathing issues
- Severe rash
- Mouth or throat swelling
Sample requirements
A small sample of blood will be collected through a vein in your hand. The Phenobarbital test cost is quite reasonable, and can be booked online.
Test preparation
No fasting or any other test preparations are needed to appear in the test.
Result interpretation
Typically, the reference range depends on the laboratory. However, the therapeutic range of the phenobarbital level is 15-40 mcg/mL. Contact your healthcare provider for more information regarding your test result.