Definitions

1. noun

A person who specializes in the study and use of medications, especially in relation to their efficacy and side effects.

“The hospital hired a posologist to review the medication regimen for the elderly patients.”

2. noun

A person who is skilled in the use of medicines, especially in relation to their therapeutic properties.

“The pharmacist was a skilled posologist, known for his ability to prescribe the right medication for each patient.”