It’s cheaper and easier to stop this issue .. just go to the nearest CVS or Wallgreens and purchase a good probiotic. That can and should take care of the problem.
Pricy, but one of the best there is:
http://www.customprobiotics.com/custom-probiotics-11-strain.htm
cured my IBS-D after levaquin wiped out my microbiome.
a good addition to the regime is a prebiotic foodstuff for the probiotic:
http://www.swansonvitamins.com/swanson-ultra-inulin-powder-8-oz-227-grams-pwdr