"The US Food and Drug Administration (FDA) has approved a riboflavin ophthalmic solution (Photrexa, Avedro) that treats a corneal disease called progressive keratoconus with corneal collagen crosslinking, the manufacturer announced today."...
(dorzolamide hydrochloride) Ophthalmic Solution
TRUSOPT® (dorzolamide hydrochloride ophthalmic solution) is a carbonic anhydrase inhibitor formulated for topical ophthalmic use.
Dorzolamide hydrochloride is described chemically as: (4S-trans)-4-(ethylamino)-5,6-dihydro-6methyl-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-dioxide monohydrochloride. Dorzolamide hydrochloride is optically active. The specific rotation is
Its empirical formula is C10H16N2O4S3•HCl and its structural formula is:
Dorzolamide hydrochloride has a molecular weight of 360.9 and a melting point of about 264°C. It is a white to off-white, crystalline powder, which is soluble in water and slightly soluble in methanol and ethanol.
TRUSOPT Sterile Ophthalmic Solution is supplied as a sterile, isotonic, buffered, slightly viscous, aqueous solution of dorzolamide hydrochloride. The pH of the solution is approximately 5.6, and the osmolarity is 260-330 mOsM. Each mL of TRUSOPT 2% contains 20 mg dorzolamide (22.3 mg of dorzolamide hydrochloride). Inactive ingredients are hydroxyethyl cellulose, mannitol, sodium citrate dihydrate, sodium hydroxide (to adjust pH) and water for injection. Benzalkonium chloride 0.0075% is added as a preservative.
What are the possible side effects of dorzolamide ophthalmic (Trusopt)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Although the risk of serious side effects is low when dorzolamide is used in the eyes, you should be aware of side effects that can occur if the medication is absorbed into your bloodstream.
Stop using dorzolamide ophthalmic and call your doctor at once if you have a serious side effect such as:
- swelling or redness of your eyelids;
- eye redness, pain, discomfort, or sensitivity to...
What are the precautions when taking dorzolamide hydrochloride ophthalmic solution (Trusopt)?
Before using dorzolamide, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients (such as the preservative benzalkonium chloride), which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney disease, kidney stones, liver disease.
If you develop an eye infection or injury, or have eye surgery, check with your doctor about whether you should continue to use your current bottle of dorzolamide. You may be advised to start using a new bottle.
Your vision may be temporarily blurred or unstable after applying this drug. Do not drive, use machinery, or...
Last reviewed on RxList: 2/18/2014
This monograph has been modified to include the generic and brand name in many instances.
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