Pharmaceuticals, pharmaceutical preparations, and drugs for treatment and prevention of bacterial vaginosis, for resolving odor and discharge symptoms associated with bacterial vaginosis and for reducing recurrent episodes of bacterial vaginosis and recurrence of abnormal vaginal odor and discharge symptoms associated with bacterial vaginosis; polyvalent compounds, synthetic molecules and dendrimers for treatment and prevention of bacterial vaginosis and symptoms thereof; antimicrobial gel preparations for vaginal use for treatment and prevention of bacterial vaginosis; vaginal gels for the prevention of diseases of the human reproductive system; Gels for medical and therapeutic use for resolving odor and discharge symptoms associated with bacterial vaginosis and for reducing recurrent episodes of bacterial vaginosis and recurrence of abnormal vaginal odor and discharge symptoms associated with bacterial vaginosis; Pharmaceutical preparations for the prevention and treatment of bacteria-based diseases