furoic acid + loperamide

**Furoic acid + loperamide** is a combination medication consisting of furoic acid (likely intended as "furazolidone", a synthetic nitrofuran antibacterial agent) and loperamide, a peripherally-acting mu-opioid receptor agonist used as an antidiarrheal. Loperamide acts by slowing intestinal motility and increasing fluid absorption, making stools more solid and less frequent. Furazolidone (if "furoic acid" is interpreted as such) acts by damaging bacterial DNA, thus killing diarrhoea-causing microorganisms. The combination is indicated primarily for the treatment of **infectious diarrhoea**, leveraging both antibacterial and antimotility effects for symptomatic relief and eradication of the underlying infection[1].