The polymer systems of the present invention degrade in the presence of an ejaculate. They may further provide degradable sequences that degrade upon contact with an ejaculate and/or microbicides. The polymer systems of the present invention are of use in the oral, rectal or vaginal cavities of an individual for such purposes as the treatment or prevention of sexually transmitted disease, the prevention or promotion of fertility or for hormone replacement therapy.
本发明的聚合物系统在射精物存在下会降解。它们还可以提供可降解序列,当与射精物和/或微
生物杀灭剂接触时降解。本发明的聚合物系统可用于个体的口腔、直肠或阴道腔,用于治疗或预防性传播疾病,预防或促进生育或进行激素替代疗法。