[souffle]

It may pass through quite quickly but will likely blitz the bowel bacteria. Get to the vets and ask for a full refund as well as a probiotic to try and re-establish the bowel bacteria. Pro C or something like fibreplex (usually given to rabbits post op) might help carry the baytril out the system. Encourage drinking plenty and give some tasty foods to hopefully keep everything moving. Babyfood and fresh veg like brocolli may encourage eating. If your hamster already has a chest infection it is already in a weakened state so will need careful monitoring and nursing. The dose is normal literally a drop of the straight meds. Sometimes vets will prescribe the 1.5 or 1.8ml added to 100ml of water and changed daily. This dilution assumes they will drink about 10ml water and get a correct dosage but in my experience they seldom touch the water as Bayril has a horrid bitter taste to it. Is there another vet you can speak to who may be able to advise?
I do hope it passes through with no effects.