I see on your other post that its capsules you have......its impossible to separate a capsule down to a smaller dosage esp one small enough for a cat...please see your Vet..until a c&s is done you can't even be sure the cat has a uti let alone what antibiotic will be appropriate to kill the right bugs....:(
are these the veterinary clindamycin hydrocholoride drops???? these are the only ones you can use safely on a cat.
if this is your own medication please don't use.....for one thing a uti has to be cultured NOT ALL antibiotics work for all infections they have to be specific to the bacteria involved or you will make your kitty very ill and not even help the uti......besides a medication prescribed for you at say 150lbs would need to be cut down to a minute size for a 10 lb cat...
clindamycin hydrochloride isn't prescribed for uti's its normally used for wounds/abscesses and dental infections...
Please take your kitty to a Vet, don't risk its life for a $50 Vet visit and proper prescription.....♥