Thank you for your medical query at AskTheDoctor.com
I understand your concern.
The urine colour can be two-toned in conditions such as urinary tract infection, urinary stones, kidney infections, e.t.c
You need to get your urine examined for the same. If an infection is confirmed your physician can start you on Norfloxacin or Doxycycline for a week.
Hope this was helpful,
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