USP <51> antimicrobial effectiveness test result
| Test organisms | ATCC# | Initial concentration (CFU/mL) | Time point | |||
| 14 day | 28 day | |||||
| CFU/mL | Log reduction | CFU/mL | Log reduction | |||
| Escherichia coli | 8739 | 3.7×105 | <100 | >3.6 | <100 | >3.6 |
| Pseudomonas aeruginosa | 9027 | 2.3×105 | <100 | >3.4 | <100 | >3.4 |
| Staphylococcus aureus | 6538 | 1.4×105 | <100 | >3.1 | <100 | >3.1 |
| Candida albicans | 10 231 | 4.1×105 | <100 | >3.6 | <100 | >3.6 |
| Aspergillus brasiliensis | 16 404 | 3.9×105 | 1.0×103 | 2.6 | <100 | >3.6 |
2% T4O formulation exerts a broad-spectrum antimicrobial effect on microorganisms related to common eye diseases within 60 s.
ATCC, American Type Culture Collection ; CFU , colony-forming unit; USP, United States Pharmacopeia.