What is the first step in the Therapeutic Interchange (TI) process?

The first step in the Therapeutic Interchange (TI) process is when the doctor enters an order. This is essential because therapeutic interchange usually begins with a prescriber identifying a need for a medication or a modification of the patient’s therapy based on their clinical judgment. By entering the order, the doctor specifies the medication that is to be replaced or adjusted, initiating the process that allows pharmacists to assess the appropriateness of that medication in relation to the patient’s needs.

This step is critical as it sets the foundation for subsequent actions, including the pharmacist's review of the patient's medication history and any discussions necessary regarding potential alternatives. Without the initial order from the doctor, the TI process cannot proceed, as it lacks direction on what specific medications or therapies are being considered for interchange. Other steps, such as the pharmacist's review or consultation with the doctor, follow this initial ordering phase, making the doctor's order the pivotal starting point in the Therapeutic Interchange process.