I don't use that brand so I am not sure on the dosage...I use 1/4 tab twice a day for Jones.
Poop vines for Phoebes
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And yes, the poop can be related to the chemo. It is excreted through the kidneys (urine) but the point of chemo is to kill any fast growing cell, which includes saliva glands and cells in the digestive tract. Diarrhea and constipation or common side affects of chemo treatments.
This is from the IBDkitty.net site.
For S boulardii: this is usually sold in capsules of 5 billion CFU (250mg). Target ½ capsule 2x a day, for a total of 5 billion CFU. If you see improvement at this dose, but not resolution of diarrhea, you can go as high as three capsules daily (15 billion CFU). This should be used for at least a few weeks if not a month before starting to slowly scale it back to a maintenance dose.
EMERGENCY “STOP DIARRHEA” DOSING INSTRUCTIONS
Jarrow Brand S. Boulardii is the most commonly locally available S. Boulardii supplement (in the U.S.). It is usually sold as S. Boulardii + MOS. “MOS” are mannan-oligosaccharides, a medium that promotes utilization of the probiotic in the intestines. It seems the MOS makes the product bitter, as most kitties will eat “plain” S. boulardii (Nutricology, A.O.R. and Renew Life brands listed here) when sprinkled on or mixed into foods – but not the S. Boulardii with MOS. This is not to say this product cannot be used, it can, but it usually needs to be syringed or pilled into the cat. If you can find an S. boulardii supplement at 5 billion CFU without MOS (there are plenty of other brand options, at least online), you may find it easier to use if your cat is not inappetent. Jarrow does have a product available in premeasured packets rather than capsules. If available, these packets will make it a little easier to use for emergency treatment if you have or can purchase small (size 3) empty capsules. Some cats eat the Jarrow S boulardii mixed into a bit of Beechnut baby food and fed as a “treat.”
For emergency “stop diarrhea” use, it is recommended to purchase size 3 empty capsules. Fill 10 or so of these, and administer them to your cat every 2 hours. This often stops diarrhea within 24 – 48 hours, other than when diarrhea is caused by another disease that requires treatment (low B12, exocrine pancreatic insufficiency, hyperthyroidism, as examples). This “loading dose” can be continued for three to four days if necessary. It is NOT necessary to use this approach, it can be given at “therapeutic” doses twice a day (and doubled if you see improvement in stool but diarrhea or soft cow patty stools have not resolved).