title: Pseudomembranous colitis secondary to metronidazole.
mesh_terms: D003013:Clostridium / Q000302:isolation & purification; D003603:Cytotoxins / Q000302:isolation & purification; D004761:Enterocolitis, Pseudomembranous / Q000139:chemically induced* / Q000382:microbiology; D005243:Feces / Q000382:microbiology; D006801:Humans; D008297:Male; D008795:Metronidazole / Q000009:adverse effects*; D008875:Middle Aged; D014245:Trichomonas Infections / Q000188:drug therapy
chemical_list: D003603:Cytotoxins; D008795:Metronidazole