Table 2.
Polymers used to prepare nepafenac eye drop formulations and their percentages.
| Eye Drop Formulations | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Component (% w/v) |
A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | A9 |
| PVP | – | – | – | – | 1.0 | – | – | – | – |
| PVA | – | – | 2.0 | – | – | – | – | – | 2.0 |
| CMC | – | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | – | 1.0 | 1.0 |
| HPMC | – | – | – | – | 0.1 | – | – | – | – |
| MC | – | – | – | – | – | – | – | – | 0.1 |
| Tyloxapol | – | – | 0.1 | – | – | – | – | – | – |
| HA | 0.2 | – | – | 0.2 | – | – | – | 0.2 | – |
| SA | – | – | – | – | – | 0.4 | 0.4 | 0.4 | – |
CMC, carboxymethylcellulose; HPMC, hydroxypropylmethylcellulose; MC, methyl cellulose; PVA, poly(vinyl alcohol); PVP, polyvinylpyrrolidone; HA, sodium hyaluronate; SA, sodium alginate.