Long term prophylactic antibiotics- trimethoprim

[Sharond85]

My 6 month old daughter has just been prescribed trimethoprim as a long term prophylactic antibiotic. We've had it previously before a VCUG/MCUG and it gave her bad diarrhoea. Does anyone have experience of it as a lower dose prophylactic?

Brief history: Complicated UTI at 6 weeks old involving swelling of kidneys. Now diagnosed with VUR but no damage to kidneys currently. Prophylactic antibiotics are to try to reduce the chance of another UTI as VUR makes this high risk of causing permanent damage to kidneys.

A further complication is she is CMPA with silent reflux and we're currently weaning. First sign of a food reaction for her is always diarrhoea so I'm concerned that if the antibiotics give her diarrhoea again, I wont be able to spot food reactions before they become a serious allergic reaction.

Thanks for reading a long post.

It's a much lower dose than the treatment dose so should hopefully not cause the same problems. But I'd suggest maybe when you start the antibiotic again don't add in any new foods for at least a week so you know if the diarrhoea starts again that it's the trimethoprim that's causing it?