case_images: PMC11752827_01
case_images: Changes in the colour and appearance of voided urine or a dissolved mesalazine tablet following the addition of domestic bleach.
case_images: NEP-30-0-g001.jpg
case_images: PMC11752827_01_NEP-30-0-g001.jpg
case_images: nep14426-fig-0001
case_images: A first-void urine sample from the patient was confirmed to change from yellow to dark brown with the addition of a small amount of household bleach (Figure 1), with a similar graded colour change observed instantaneously when different concentrations of bleach were added to a dissolved mesalazine tablet.