What is the most over prescribed antibiotic?

Can you tell me, what is the most over prescribed antibiotic in use today? I'm interested in understanding which antibiotic is being dispensed in excessive amounts, potentially leading to issues like bacterial resistance and other health concerns. Is there a specific reason why this particular antibiotic is being prescribed so frequently? Additionally, are there any initiatives in place to curb this overprescription and promote more judicious use of antibiotics?