(with HCl)| ATC_prefix = A07| ATC_suffix = DA03| ATC_supplemental = | PubChem = 3955| DrugBank = APRD00275| C=29 | H=33 | Cl=1 | N=2 | O=2| molecular_weight = 477.037 g/mol (513.506 with HCl)| bioavailability = Not significantly absorbed from the gut| protein_bound = 97%| metabolism = hepatic| elimination_half-life = 9.1 to 14.4 hours (average 10.8 hours)| excretion =| pregnancy_category = Bhttp://www.drugs.com/mtm/loperamide.html http://www.safefetus.com/DrugDetail.asp?DrugId=204&TradeName=Lop