Amoxicllin : 250 mg three times daily, for 7 days, Nitrofurantoin : 50 mg four times daily, or 100 mg (modified-release) twice daily, for 7 days, Trimethoprim - where no folate deficiency, Cefalexin (500 mg twice daily, or 250 mg 6-hourly, for 7 days) may be used but is less preferred