Can you take norflox tz for UTI 3 days?

No,

Norfloxacin is not typically prescribed for only 3 days to treat a urinary tract infection (UTI). The usual course of treatment for a UTI with norfloxacin is 7 to 14 days. Taking norfloxacin for only 3 days may not completely eradicate the infection and could increase the risk of the bacteria becoming resistant to the medication.

Additionally, some medications used to treat UTIs, including norfloxacin, are taken once or twice daily. Taking the medicine less than the recommended number of times per day can make the medicine less effective to treat your UTI.

It is important to follow the dosing instructions provided by a doctor or pharmacist to ensure the medication is effective in treating the UTI and to reduce the risk of side effects. If you have any questions or concerns about the dosage of norfloxacin you are taking, it is best to speak to your doctor.