These are antibiotic eye drops especially made by a compounding pharmacy, used for bad eye infections such as a corneal ulcer. Certain strong medicines are not available in eye drop format (or don’t come in high enough concentrations). If you have a bad corneal ulcer, for example, the typical antibiotic eye drops may not be strong enough. In these cases, we typically have a compounding pharmacy prepare fortified antibiotic drops. The most common drops we have created are vancomycin (an antibiotic good for MRSA), tobramycin (good general coverage), and amphotericin B (an antifungal agent).