Drug Catalog - Product Detail
Dorzolamide HCl-Timolol Maleate Ophth Sol 22.3-6.8 MG/ML PF 60 EA UoU
| NDC | Mfr | Size | Str | Form |
|---|---|---|---|---|
| 65862-0947-60 | AUROBINDO PHARMA | 60 | 2-0.5% | SOLUTION |
PACKAGE FILES
Generic Name
DORZOLAMIDE HYDROCHLORIDE AND TIMOLOL MALEATE PRESERVATIVE FREE
Substance Name
DORZOLAMIDE HYDROCHLORIDE
Product Type
HUMAN PRESCRIPTION DRUG
Route
OPHTHALMIC
Application Number
ANDA207630
Description
11 DESCRIPTION Dorzolamide hydrochloride and timolol maleate ophthalmic solution, USP (preservative free) is the combination of a topical carbonic anhydrase inhibitor and a topical beta-adrenergic receptor blocking agent. Dorzolamide hydrochloride USP is described chemically as: (4 S , 6 S )-4-(Ethylamino)-5,6-dihydro-6-methyl-4 H -thieno[2,3- b ]thiopyran-2-sulphonamide 7,7-dioxide monohydrochloride. Dorzolamide hydrochloride is optically active. The specific rotation is: [α] 25°C (C=1, water) = ~ -17°. 405 nm Its molecular formula is C 10 H 16 N 2 O 4 S 3 •HCl and its structural formula is: Dorzolamide hydrochloride USP has a molecular weight of 360.91. It is a white to off-white, crystalline powder, which is soluble in water and slightly soluble in methanol and ethanol. Timolol maleate USP is described chemically as: (-)-1-( tert -Butylamino)-3-[(4-morpholino-1,2,5-thiadiazol-3-yl)oxy]-2-propanol maleate (1:1) (salt). Timolol maleate possesses an asymmetric carbon atom in its structure and is provided as the levo-isomer. The optical rotation of timolol maleate is: [α] 25°c in 1N HCl (C=5) = -12.2° (-11.7° to -12.5°) 405 nm Its molecular formula is C 13 H 24 N 4 O 3 S•C 4 H 4 O 4 and its structural formula is: Timolol maleate USP has a molecular weight of 432.49. It is a white to practically white powder which is soluble in water, methanol, and alcohol. Timolol maleate is stable at room temperature. Dorzolamide hydrochloride and timolol maleate ophthalmic solution, USP (preservative free) is supplied as a sterile, clear, colorless to nearly colorless, isotonic, buffered, slightly viscous, aqueous solution. The pH of the solution is approximately 5.65, and the osmolarity is 242 to 323 mOsM. Each mL of dorzolamide hydrochloride and timolol maleate ophthalmic solution, USP (preservative free) contains 20 mg dorzolamide (22.26 mg of dorzolamide hydrochloride USP) and 5 mg timolol (6.83 mg timolol maleate USP). Inactive ingredients are hydroxyethyl cellulose, mannitol, sodium citrate dihydrate, sodium hydroxide, and water for injection. Dorzolamide hydrochloride and timolol maleate ophthalmic solution, USP (preservative free) does not contain a preservative. Chemical Structure Chemical Structure
How Supplied
16 HOW SUPPLIED/STORAGE AND HANDLING Dorzolamide Hydrochloride and Timolol Maleate Ophthalmic Solution, USP (Preservative Free) is a clear, colorless to nearly colorless, slightly viscous solution packed in natural LDPE BFS container and supplied in a foil pouch containing 15 low density polyethylene 0.2 mL fill single-use containers. Carton of 4 pouches NDC 65862-947-60 Carton of 12 pouches NDC 65862-947-18 Store Dorzolamide hydrochloride and Timolol maleate Ophthalmic Solution, USP (preservative free) at 20° to 25°C (68° to 77°F) [see USP controlled room temperature]. Do not freeze. Store in the original pouch. After the pouch is opened, store the remaining single-use containers in the foil pouch to protect from light. Write down the date you open the foil pouch in the space provided on the pouch. Discard any unused containers 15 days after first opening the pouch.
Indications & Usage
1 INDICATIONS AND USAGE Dorzolamide hydrochloride and timolol maleate ophthalmic solution preservative free is indicated for the reduction of elevated intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension who are insufficiently responsive to beta-blockers (failed to achieve target IOP determined after multiple measurements over time). The IOP-lowering of dorzolamide hydrochloride and timolol maleate ophthalmic solution administered twice a day was slightly less than that seen with the concomitant administration of 0.5% timolol administered twice a day and 2% dorzolamide administered three times a day [see Clinical Studies (14.1) ]. Dorzolamide hydrochloride and timolol maleate ophthalmic solution preservative free is a carbonic anhydrase inhibitor with a beta-adrenergic receptor blocking agent indicated for the reduction of elevated intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension who are insufficiently responsive to beta-blockers. The IOP-lowering of dorzolamide hydrochloride and timolol maleate ophthalmic solution twice daily was slightly less than that seen with the concomitant administration of 0.5% timolol twice daily, and 2% dorzolamide three times daily. (1)
Dosage and Administration
2 DOSAGE AND ADMINISTRATION The dose is one drop of dorzolamide hydrochloride and timolol maleate ophthalmic solution preservative free in the affected eye(s) two times daily. If more than one topical ophthalmic drug is being used, the drugs should be administered at least five minutes apart [see Drug Interactions (7.3) ]. The solution from one individual unit is to be used immediately after opening for administration to one or both eyes. Since sterility cannot be maintained after the individual unit is opened, the remaining contents should be discarded immediately after administration. The dose is one drop of dorzolamide hydrochloride and timolol maleate ophthalmic solution preservative free in the affected eye(s) two times daily. (2)