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Allopurinol has been marketed in the United States since 19 August 1966, when it was first approved by FDA under the trade name Zyloprim. [40] Allopurinol was marketed at the time by Burroughs Wellcome. Allopurinol is a generic drug sold under a variety of brand names, including Allohexal, Allosig, Milurit, Alloril, Progout, Ürikoliz, Zyloprim ...
Allopurinol hypersensitivity syndrome (AHS) typically occurs in persons with preexisting kidney failure. [3]: 119 Weeks to months after allopurinol is begun, the patient develops a morbilliform eruption [3]: 119 or, less commonly, develops one of the far more serious and potentially lethal severe cutaneous adverse reactions viz., the DRESS syndrome, Stevens Johnson syndrome, or toxic epidermal ...
While it has been recommended that urate-lowering measures should be increased until serum uric acid levels are below 300–360 μmol/L (5.0–6.0 mg/dL), [62] [66] there is little evidence to support this practice over simply putting people on a standard dose of allopurinol. [67]
Febuxostat is used to treat chronic gout and hyperuricemia. [12] Febuxostat is typically recommended only for people who cannot tolerate allopurinol. [13] National Institute for Health and Clinical Excellence concluded that febuxostat is more effective than standard doses of allopurinol, but not more effective than higher doses of allopurinol.
Lesinurad/allopurinol (trade name Duzallo) is a fixed-dose combination drug for the treatment of gout. [1] It contains 200 mg of lesinurad and 300 mg of allopurinol.In August 2017, the US Food and Drug Administration approved it for the treatment of hyperuricemia associated with gout in patients for whom target serum uric acid levels have not been achieved with allopurinol alone. [2]
Lesinurad (brand name Zurampic) is a urate transporter inhibitor for treating high blood uric acid levels associated with gout. [2] It is recommended only as an adjuvant with either allopurinol or febuxostat when these medications are not sufficient.
The dose should be reduced or allopurinol should be discontinued. Several published studies have demonstrated that the use of allopurinol in combination with low dose 6-MP helps reduce 6-MP levels, which are toxic to liver tissue, whilst increasing the therapeutic levels of 6-MP for some inflammatory conditions.
Low doses of allopurinol, though, have been shown to safely enhance the efficacy of azathioprine, especially in inflammatory bowel disease nonresponders. [ 54 ] [ 55 ] [ 56 ] This may still lead to lower lymphocyte counts and higher rates of infection, therefore the combination requires careful monitoring.