Test Description: Phenobarbital (Gardinal)

The Phenobarbital (Gardinal) test measures the level of phenobarbital, a barbiturate medication, in the blood. Phenobarbital is commonly used to treat seizures, epilepsy, and anxiety disorders. This test helps ensure that the medication is within the therapeutic range to be effective while minimizing the risk of side effects or toxicity. It is often monitored in patients undergoing long-term treatment with phenobarbital to assess drug levels and adjust dosages accordingly.