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The drug is occasionally used on an intermittent basis to prevent seizures in catamenial epilepsy. [10] The sulfur-containing antiseizure and antimigraine drug topiramate is a weak inhibitor of carbonic anhydrase, particularly subtypes II and IV. [11] Whether carbonic anhydrase inhibition contributes to its clinical activity is not known.
Merck discontinued diclofenamide when better glaucoma drugs were developed. In 2010, Sun Pharmaceutical Industries bought the rights. [citation needed] In 2015, the F.D.A. approved it as an orphan drug, with 7-year exclusive marketing rights, for periodic paralysis, which the company estimates affects 5,000 people in the U.S. In 2016 ...
Dorzolamide is a human carboanydrase II inhibitor. [11] Inhibition of carboanhydrase in the ciliary processes of the eye decreases aqueous humor secretion supposedly by decreasing the formation rate of bicarbonate ions. [12] This results in reduction in both sodium and fluid transport. Timolol is a non-selective beta-adrenergic antagonist. [13]
It is a carbonic anhydrase inhibitor and works by decreasing the production of aqueous humor. [3] Dorzolamide was approved for medical use in the United States in 1994. [3] It is available as a generic medication. [5] In 2022, it was the 201st most commonly prescribed medication in the United States, with more than 2 million prescriptions. [6] [7]
Sultiame (or sulthiame) is a sulfonamide and inhibitor of the enzyme carbonic anhydrase. It is used as an anticonvulsant and in recent studies showed promise in reducing sleep disordered breathing and other symptoms of obstructive sleep apnea (OSA).
Acetazolamide is a carbonic anhydrase inhibitor, hence causing the accumulation of carbonic acid. [12] Carbonic anhydrase is an enzyme found in red blood cells and many other tissues that catalyses the following reaction: [26] H 2 CO 3 ⇌ H 2 O + CO 2. hence lowering blood pH, by means of the following reaction that carbonic acid undergoes: [27]
Rarely, the inhibition of carbonic anhydrase may be strong enough to cause metabolic acidosis of clinical importance. [44] The U.S. Food and Drug Administration (FDA) has notified prescribers that topiramate can cause acute myopia and secondary angle closure glaucoma in a small subset of people who take topiramate regularly. [45]
Methazolamide (trade name Neptazane) is a potent carbonic anhydrase inhibitor. It is indicated in the treatment of increased intraocular pressure (IOP) in chronic open-angle glaucoma and secondary glaucoma. Also it is used preoperatively in acute angle-closure (narrow-angle) glaucoma where lowering the IOP is desired before surgery.