For lower tract:

• Cranberry juice still not definitely proven.
• Methenamine tablets found to be equivalent to trimethoprim prophylaxis – licensed for adults only but BNFc gives dose for children. Needs acidic urine to work so don’t use citrates at same time.
• D-mannose some evidence – from health food shops! Capsules I think, prob no dose for children.
• Citrates?
• NICE CKS specifically advises AGAINST use of these non-drug products, with exception of methenamine! Prob because self initiated short course trimethoprim superior?