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Phenazopyridine Hydrochloride produces an orange to red color in the urine and may stain fabric. Patients should be instructed to maintain an adequate fluid intake in order to prevent crystalluria and stone formation. Staining of contact lenses has been reported.
This product contains two tablets: trimethoprim/sulfamethoxazole double strength is a white capsule-shaped scored tablet with beveled edges, plain on one side, scored in half on the other, with "93" embossed on one side of the breakline and "089" embossed on the other side and phenazopyridine hydrochloride is a round, sugar coated, deep maroon tablet imprinted "Z-U10" on one side.
Trimethoprim/sulfamethoxazole double strength tablets should be taken every 12 hours for 10 days. Phenazopyridine Hydrochloride tablets should be taken 3 times a day after meals for no more than 2 days
Appropriate culture and susceptibility studies should be performed before and throughout treatment in patients receiving sulfamethoxazole/trimethoprim. Complete blood counts should be done frequently; if a significant reduction in the count of any formed blood element is noted, trimethoprim/sulfamethoxazole should be discontinued. Urinalysis with careful microscopic examination and renal function tests should be performed during therapy, particularly for those patients with impaired renal function.
Last reviewed on RxList: 1/28/2005
This monograph has been modified to include the generic and brand name in many instances.
Additional Zotrim Information
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