Serious reactions to Uribel® capsules are rare. Uribel may cause urine and sometimes stools to turn blue or blue-green, a harmless effect that subsides when medication is stopped.
Adverse reactions can include rapid heartbeat, flushing, blurred vision, dizziness, drowsiness, difficult micturition, acute urinary retention, dry mouth, nausea and vomiting, shortness of breath, or trouble breathing.