Fluorescein Sodium and Benoxinate Hydrochloride Ophthalmic Solution, 0.3%/0.4% is a sterile solution containing a disclosing agent in combination with a short-acting ester anesthetic for topical ophthalmic use.
Fluorescein sodium is represented by the following structural formula:
Chemical Name: 3’,6’ Dihydroxy-3H-spiro[isobenzofuran-1,9-xanthen]-3-one disodium salt.
Benoxinate hydrochloride is represented by the following structural formula:
Chemical Name: 2-(Diethylamino) ethyl 4-amino-3-butoxybenzoate hydrochloride.
Each mL of Fluorescein Sodium and Benoxinate Hydrochloride Ophthalmic Solution 0.3%/0.4% contains:
- Active ingredients: fluorescein sodium 2.6 mg (0.3%) equivalent to fluorescein 2.3 mg (0.2%), benoxinate hydrochloride 4.4 mg (0.4%) equivalent to benoxinate 3.9 mg (0.4%)
- Preservative: chlorobutanol 12.6 mg (1.3%)
- Inactive ingredients: povidone, hydrochloric acid, boric acid, water for injection. Hydrochloric acid may be added to adjust pH (4.3 – 5.3)