My boy has an upset tummy at the moment, i am taking him to the vet tomorrow just to be safe but he gets an upset tummy after i worm him with drontal. (totally forgot ) I wormed him saturday. Anyway, last time he had an upset tummy the vet gave me pro biotics to add to bland food. Just wondering if i could just use inner health plus instead of the one they would sell me? I think i paid $80 for a sachet of it last time & i have inner health plus at home that i could use.