I presume you are referring to statements such as "The two most common treatments for SIBO among patients with IBS are oral antibiotics and probiotics". The assumption is an IBS sufferer also has SIBO. The antibiotics are for the SIBO and the probiotics I believe are targeted more to the IBS. I don't recall reading about anyone having conventional SIBO as a result of surgery or disease such as pancreatitis being treated with probiotics. Also generally speaking you don't want many bacteria in your small intestine anyway. However, I won't be surprized if someone somewhere is doing this kind of research
PS - I see your signature in this posting. I wonder how I missed in the previous one
-------------------- STABLE: ♂, IBS-D 50+ years - Science of IBS