K. Lohmann

Intravaginally applied metronidazole is as effective as orally applied in the treatment of bacterial vaginosis, but exhibits significantly less side effects.

U. Hoyme, C. Abels, T. May, 2008, European journal of obstetrics, gynecology, and reproductive biology.

Chamazulene carboxylic acid and matricin: a natural profen and its natural prodrug, identified through similarity to synthetic drug substances.

R. Bauer, P. Imming, E. Krause, 2006, Journal of natural products.

Sequential Intravaginal Application of Metronidazole and Lactic Acid for the Treatment and Prevention of Recurrence in Bacterial Vaginosis

U. Hoyme, T. May, M. Brandt, 2009 .