Baycox treats coccidea, i've seen it work within hours!
to calculate the dosage, weigh the kitten in ounces.
1 ounce = .02 mls
2 ounces = .03 mls
keep adding .01 mls per ounce.
It is a bit irritating to the throat so I usually draw up the baycox dose, then an equal amount of pet-pectate (don't use kaopectate it is no longer safe for kitties).
dose once daily for two days and repeat in a week. I have had some very stubborn cases of coccidea where I had to dose for three days.
I get it from Foye's Pigeon Supply (don't have the link, sorry. you can google it tho).
you can also give them canned pumpkin (not pie filling, just plain pumpkin) which many kittens like. this firms up stools but does not treat the underlying cause.
hope the kittens feel better soon!