Today, all products sold at major retailers are antibiotic-free and rely on natural antioxidants like cranberry powder and marshmallow root. Guide to Purchasing & Alternatives 1. Current OTC Angels' Eyes (Antibiotic-Free) You can buy the new, safe formulations at these retailers: Angel Eyes With Tylosin: Pet Supplies - Amazon.com

The original formulation of containing the antibiotic tylosin tartrate is no longer legally available for over-the-counter (OTC) purchase in the United States. Following FDA warnings in 2014, the manufacturer removed all antibiotics from their product line to prevent antibiotic resistance and comply with safety regulations.