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Antiuricosuric drugs raise serum uric acid levels and lower urine uric acid levels. These drugs include all diuretics, pyrazinoate, pyrazinamide, ethambutol, niacin, and aspirin. [5] The NSAID diclofenac has an antiuricosuric action, which may be partly responsible for the extraordinary toxicity of this drug in vultures. [6]
A xanthine oxidase inhibitor is any substance that inhibits the activity of xanthine oxidase, an enzyme involved in purine metabolism.In humans, inhibition of xanthine oxidase reduces the production of uric acid, and several medications that inhibit xanthine oxidase are indicated for treatment of hyperuricemia and related medical conditions including gout. [1]
Allopurinol is used to reduce urate formation in conditions where urate deposition has already occurred or is predictable. The specific diseases and conditions where it is used include gouty arthritis, skin tophi, kidney stones, idiopathic gout; uric acid lithiasis; acute uric acid nephropathy; neoplastic disease and myeloproliferative disease with high cell turnover rates, in which high urate ...
Uric acid displays lactam–lactim tautomerism. [4] Uric acid crystallizes in the lactam form, [5] with computational chemistry also indicating that tautomer to be the most stable. [6] Uric acid is a diprotic acid with pK a1 = 5.4 and pK a2 = 10.3. [7] At physiological pH, urate predominates in solution. [medical citation needed]
Uric acid is a normal waste product made by the body, but in some people, it can accumulate at higher levels and lead to gout. Gout can be divided into four stages: Hyperuricemia.
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.
Lesinurad inhibits URAT1, a protein that is responsible for reabsorption of uric acid in the kidneys. This leads to increased uric acid excretion with the urine, and consequently lower blood levels. It also inhibits the protein OAT4, which is associated with hyperuricemia caused by diuretic drugs. [7] [8]
Probenecid, also sold under the brand name Probalan, is a medication that increases uric acid excretion in the urine. It is primarily used in treating gout and hyperuricemia . Probenecid was developed as an alternative to caronamide [ 1 ] to competitively inhibit renal excretion of some drugs, thereby increasing their plasma concentration and ...