My doctor prescribed VSL#3 DS (double strength) when I asked. Notsosicklygirl can bump up her count from 2 or 3 to 3 or 4. They're packets of powder that you dump into water or something else. Although the taste is pretty mild, the lemonish flavor somehow reminded me of colonoscopy preparations, and I couldn't stand it except in an occasional smoothie or something else to drown the taste. Now I'm paying $50 a bottle (actually about a third less because I claim them on a health spending account with doctor's note) for VSL#3 capsules, which have the same contents but in smaller doses, so you'd have to take more to match the packets.