The most commonly reported side effects of urea include fatigue, diarrhoea, and nausea, based on 3,610 FDA adverse event reports from 2004 to 2025. 3.9% of reports found the drug to be ineffective.
Percentages show how often each reaction appears relative to total reports for urea.
These are voluntary reports and do not establish that urea caused these reactions.
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Other drugs that appear in adverse event reports alongside urea. Drugs flagged as a suspected cause appear in the first column. Drugs taken at the same time but not suspected appear in the second.
Also suspected
Taken alongside
Co-occurrence in adverse event reports does not establish a drug interaction. Patients often take multiple medications, and these lists reflect prescribing patterns rather than causal relationships. Consult a healthcare provider about potential drug interactions.
47.4% of urea adverse event reports involve female patients and 45.3% involve male patients. The largest age group is adult at 49%. These figures reflect who reports side effects, not underlying risk.
Sex
Age group
Conditions and purposes for which patients were taking urea when the adverse event was reported.
Showing 15 of 257 indications
Urea is sold under the brand name Sterile Urea.
An upward trend reflects increased FAERS reporting overall, not necessarily increased risk.
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