A lot of this information was incorrect, so I went ahead and rewrote a lot of it. Diphenoxylate in Lomotil is commonly confused with Difenoxin in Motofen, and this seemed to be the case here.

Also, the link for Difenoxin currently has no article linked to it. Does anybody have any information about this drug so there can be an article for it? Thanks. - Russ.