Constipation (Iberogast and Biocidin) Home › Forums › SIBO Mastery › Small Intestinal Bacterial Overgrowth › Constipation (Iberogast and Biocidin) This topic has 1 reply, 2 voices, and was last updated 8 years, 2 months ago by DrWoeller. Viewing 1 reply thread Author Posts November 10, 2016 at 5:37 pm #628 Margaret Masvidal Do either Iberogast or Biocidin have a side effect of constipation? November 14, 2016 at 9:34 am #639 DrWoellerKeymaster Margaret, Not typically, but anything is possible. Try cutting out the Biocidin first and see if that helps. Dr. Woeller Author Posts Viewing 1 reply thread You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In Log in / Register