Formula 4. Vehicle for improving percutaneous absorption9
| Phospholipids | 2.00% w/w |
| Ethanol | 55.00 |
| Water (aqua) | 33.90 |
| Indomethacin | 1.00 |
| Benzyl alcohol | 4.00 |
| l-Menthol | 3.00 |
| Diisopropanolamine | 0.50 |
| Citric acid | 0.50 |
| Sodium thiosulfate | 0.10 |
|
100.00 |