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This page is intended to provide scientific information to research and healthcare professionals regarding SOLOSEC® (secnidazole) 2 g oral granules.

SOLOSEC was approved by the U.S. Food and Drug Administration in September 2017 for the treatment of bacterial vaginosis (BV) in adult women. The FDA later expanded its label in July 2021 to include the treatment of trichomoniasis in adults and their partners and, in February 2022, for the treatment of both BV and trichomoniasis in adolescents 12 and older. Evofem accquired SOLOSEC in July 2024.

IndicationAuthor(s)PublicationTitleDate
Recurrent BVNeal et al.Obstetrics & Gynecology

Annual Clinical and Scientific Meeting of the American College of Obstetricians & Gynecologists (ACOG)
Once-Weekly Secnidazole Granules for the Treatment of Recurrent Bacterial Vaginosis [ID 775]June 2025
in press

May 2025
poster presentation
TrichomoniasisMuzny et al.BMJ OpenEfficacy of single-dose oral secnidazole for the treatment of trichomoniasis in women co-infected with trichomoniasis and bacterial vaginosis: a post hoc subgroup analysis of phase 3 clinical trial data.August 2023
TrichomoniasisMuzny et al.Clinical Infectious DiseasesEfficacy and Safety of Single Oral Dosing of Secnidazole for Trichomoniasis in Women: Results of a Phase 3, Randomized, Double-Blind, Placebo-Controlled, Delayed-Treatment StudySeptember 2021
TrichomoniasisMuzny et al.2020 Infectious Diseases Society for Obstetrics & Gynecology (IDSOG) Virtual Annual MeetingA Phase 3, multi–center, prospective, randomized, placebo–controlled, delayed treatment, double–blind study to evaluate the effectiveness and safety of a single oral dose of 2 grams of secnidazole for the treatment of trichomoniasis in womenAugust 2020
Treatment of BVChavoustie et al.Journal of Women’s HealthA Phase 3, Multicenter, Prospective, Open-Label Study to Evaluate the Safety of a Single Dose of Secnidazole 2 g for the Treatment of Women and Postmenarchal Adolescent Girls with Bacterial VaginosisApril 2018
Treatment of BVHillier et al.Obstetrics and GynecologySecnidazole Treatment
of Bacterial Vaginosis
A Randomized Controlled Trial
August 2017
Treatment of BVSchwebke et al.American Journal of Obstetrics and GynecologyA phase-3, double-blind, placebo-controlled study of the effectiveness and safety of single oral doses of secnidazole 2 g for the treatment of women with bacterial vaginosisDecember 2017
(Presented in oral format at the 43rd annual meeting of the Infectious Diseases Society for Obstetrics and Gynecology August 2016)

Evofem assumes no responsibility for the accuracy of any information or data contained on any third party website. Evofem has not independently verified the accuracy of such information or data, and there can be no assurance as to the accuracy of any such information or data. Links to this information and data are provided for informational purposes only.

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San Diego, California 92122
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San Diego, CA 92130

Phexxi®, the Phexxi logo, Solosec® and the Solosec logo are registered trademarks of Evofem Biosciences, Inc.
Other trademarks, registered or otherwise, are the property of their respective owner(s).

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