The mouthwash Listerine may inhibit the growth of Neisseria gonorrhoeae, according to an in vitro study and a small randomized trial of men who have sex with men recently published in Sexually Transmitted Diseases. Gonorrhea is on the rise, especially among gay or bisexual men, as condom use has declined. To stop the emergence of antibiotic-resistant strains of N gonorrhoeae, the need for prevention measures that don’t rely on condoms is urgent, according to the authors.
Slomski A. Listerine May Help Control Spread of Gonorrhea. JAMA. 2017;317(8):798. doi:10.1001/jama.2017.1130