title: Nonoxynol-9 ineffective in preventing HIV infection.
mesh_terms: D005260:Female; D015658:HIV Infections / Q000517:prevention & control*; D006801:Humans; D008297:Male; D017137:Nonoxynol / Q000627:therapeutic use*; D013089:Spermatocidal Agents / Q000627:therapeutic use*; D017211:Treatment Failure
chemical_list: D013089:Spermatocidal Agents; D017137:Nonoxynol