Recently, one of my kids (the goat kind) had a bout of diarrhea (he got into the chicken food). There was no bloating, so no baking soda this time. I called my goat mentor and she suggested Pepto and advised me to look at Fiasco Farm's website for the dosage. While browsing there, I read that she uses slippery elm instead of Pepto. I had some on hand and decided to give it a try. Sure enough, it cleared up after 1 dose! I've since used it on my human kids for diarrhea and constipation and it works great for either condition.
I mixed up a little with some water and shot it in his mouth like a dewormer. I mixed about 1 tablespoon with enough water to make it liquid enough to be drawn up in the syringe and then gave him about 4 syringe fulls. I did this twice, about 4 hours apart. With the children, I mixed up a tablespoon or so with some banana and just made them eat it (I tried this with the goat but he wouldn't even think about eating it!). They all agreed it wasn't the worst thing they had ever put in their mouths before but they didn't LOVE it.
I would definitely advise looking at the Fiasco Farm site (http://fiascofarm.com/goats/medications-2.htm) and get some slippery elm. I purchased the powder from Herbalcom.com but you could just as easily buy it in pill form and empty the capsules.