How many days to wait before measuring the blood level of any medication

This article was first published on February 12, 2024. It was last reviewed, updated, or edited on February 12, 2024. Why do we wait for a few days before measuring medication blood levels? As you know, we wait for a few days before checking serum/plasma levels of any medication, for example, lithium, valproic acid, carbamazepine,…