What should you know about cystitis antibiotics?

Cystitis is inflammation of the bladder, often linked with a urinary infection, but burning, urgency, frequency, or lower abdominal discomfort can also result from irritation, stones, sexually transmitted infections, or other conditions. A clinician may ask about symptoms, pregnancy possibility, previous infections, medicines, allergies, and kidney problems. Urine testing may help guide the decision, especially when symptoms are unusual, recurrent, severe, or do not improve.

The antibiotic choice and course depend on the likely bacteria, your health, and local clinical guidance. Do not use leftover tablets or share a prescription.

If an antibiotic is prescribed, take it exactly as directed and complete the prescribed course unless the prescriber tells you to stop. Ask what to do if you miss a dose and mention any new rash, breathing difficulty, severe diarrhoea, or vomiting. Drink fluids normally unless a clinician has restricted them, and avoid products that worsen bladder irritation if you notice a clear connection. Arrange review if symptoms are not settling or return soon after treatment.

Seek urgent assessment for fever, chills, pain in the back or side, vomiting, confusion, faintness, or feeling severely unwell, because infection can involve the kidneys or spread beyond the bladder. Prompt review is also needed for blood in urine, pregnancy, symptoms in a child, or difficulty passing urine. These situations need more than choosing an antibiotic at home.

Ask whether your symptoms fit cystitis, whether urine testing is needed, which medicine is suitable with your allergies and other treatments, and when improvement should begin. Ask how to recognise a kidney infection and what to do if symptoms return.