Objective. To evaluate the efficiency of empirical therapy with tergynan in reproductive-aged women in routine clinical practice. Subjects and methods. The TERRA multicenter post-registration observational study enrolled 430 reproductive-aged patients diagnosed with acute vulvovaginitis. Based on their complaints, clinical symptoms, and objective examination, the patients received empirical therapy with the combination antimicrobial drug Tergynan as a single vaginal tablet once daily for 10 days. Gynecological examination, pH-metry, and bacterioscopic and bacteriological examinations of discharge (Femoflor-16) were performed, and the time course of changes in clinical symptoms evaluated. Results. There was less vaginal discharge, a complete disappearance of unpleasant odor, and a feeling of vaginal itching and burning (74.5 and 67.1%, respectively). There were increases in the detection rate of Lactobacillus spp. by 2 times with a dissemination level of 106-107 CFU/ml, in the suppression of obligate anaerobic representatives (associations of Gardnerella vaginalis + Prevotella bivia + Porphyromonas spp., as well as Eubacterium spp.) by 5 times, facultative anaerobic bacteria (Enterobacteriaceae and Streptococcus spp.) by 3 times, and yeast-like fungi of the genus Candida by 2 times. Conclusion. This investigation demonstrated the high clinical (96.5%) and microbiological (97.3%) efficiency of empirical therapy with tergynan in 430 reproductive-aged women with acute nonspecific vulvovaginitis. © 2020, Bionika Media Ltd. All rights reserved.