[pugmomsandy]

This one is a very tiny capsule and usually on sale!

http://www.swansonvitamins.com/swanson-probiotics-dr-stephen-langers-ultimate-16-strain-probioticwith-fos-60-veg-caps

Probiotics are fairly widely available at box stores and pet boutiques. I just look for a product with at least 10 strains of organisms.