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The mean half-life of oxypurinol in patients with normal kidney function is 23 hours, although 95% of patients have half-lives between 9 and 38 hours. [7] The half-life of oxypurinol increases with decreasing kidney function, allowing it to build up over an extended period of time and reach higher steady-state concentrations; among those ...
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 ...
This is a list of radioactive nuclides (sometimes also called isotopes), ordered by half-life from shortest to longest, in seconds, minutes, hours, days and years. Current methods make it difficult to measure half-lives between approximately 10 −19 and 10 −10 seconds.
An equianalgesic chart can be a useful tool, but the user must take care to correct for all relevant variables such as route of administration, cross tolerance, half-life and the bioavailability of a drug. [5] For example, the narcotic levorphanol is 4–8 times stronger than morphine, but also has a much longer half-life. Simply switching the ...
The reaction generally includes a constellation of fever; urticarial polycyclic wheals (a rash that can look similar to hives with small swellings that overlap each other [2]) with central clearing on the trunk, extremities, face, and lateral borders of the hands and feet; oral edema without mucosal involvement; lymphadenopathy; arthralgias; myalgias; and mild proteinuria.
Primidone and the other enzyme-inducing anticonvulsants can cut the half-life of antipyrine roughly in half (6.2 ± 1.9 h vs. 11.2 ± 4.2 h), and increases the clearance rate by almost 70%. Phenobarbital reduces the half-life to 4.8 ± 1.3 and increases the clearance by almost 109%. [ 66 ]
Its half-life is shorter than that of other orexin receptor antagonists such as suvorexant (12 hours) and lemborexant (~18–55 hours). [5] The relatively short half-life of daridorexant may allow for reduced daytime sedation. [5] [16] The duration of action of daridorexant in terms of sedative effects is approximately 8 hours with a 50 mg dose ...
Dipyridamole is used to dilate blood vessels in people with peripheral arterial disease and coronary artery disease. [3]Dipyridamole has been shown to lower pulmonary hypertension without significant drop of systemic blood pressure.