What does 'b.i.d.' or 'bid' mean in medication administration?

The abbreviation 'b.i.d.' stands for "bis in die," which is Latin for "twice a day." This term is commonly used in medical prescriptions to instruct that a particular medication should be taken two times each day. This dosing schedule helps to maintain a consistent level of medication in the bloodstream for optimal therapeutic effect, particularly for medications that require regular intervals for effectiveness or to manage specific conditions. Understanding these abbreviations is crucial for safe medication administration and for ensuring adherence to treatment plans.