What should you know about medication to treat UTI?

A UTI can affect the bladder or travel higher into the urinary system. Burning when passing urine, needing to urinate often, urgency, and lower abdominal discomfort can occur with bladder infection. Fever, chills, pain in the side or back, nausea, or vomiting may suggest a more serious infection and need prompt assessment. Similar symptoms can have other causes, so a clinician may ask for a urine sample before choosing medicine.

The right medicine depends on allergies, pregnancy, kidney function, previous infections, and local prescribing guidance. Antibiotics do not treat every cause of urinary discomfort.

Take prescribed medicine exactly as directed and do not share leftover antibiotics. If you are given an antibiotic, follow the full instructions even if symptoms improve, unless the prescriber changes the plan. Drink fluids according to your clinician's advice, rest, and avoid bladder irritants if they worsen discomfort. Tell the prescriber if you are pregnant, breastfeeding, allergic to medicines, or taking other treatments. If symptoms do not begin to improve as expected, contact the clinic rather than repeating an old prescription.

Seek same-day medical advice for fever, chills, pain in your back or side, vomiting, visible blood in urine, or feeling suddenly very unwell. Pregnancy, diabetes, kidney disease, or a weakened immune system also lowers the threshold for prompt review. Seek emergency help for confusion, fainting, severe weakness, or difficulty breathing. Contact the prescriber about a rash, facial swelling, or severe diarrhoea after starting medicine.

Ask whether a urine test is needed, which area of the urinary system may be affected, how soon improvement should begin, and what to do if symptoms persist. Confirm the dose, interactions, pregnancy or breastfeeding considerations, and warning signs for escalation.