A device for use in locally delivering and controllably releasing oxybutynin in the cervical region of a female for a period of up to 28 days. The device comprises: a ring (I) comprising trifluoropropylmethyl/dimethyl siloxane elastomer, The ring (I) has a sufficient size such that it can be inserted into a vaginal canal of the female. The device also comprises a pharmaceutical composition comprising a therapeutically effective amount of oxybutynin and an excipient. The pharmaceutical composition is inserted within the ring (I). Upon insertion of the ring (I) into the vaginal canal, a therapeutically effective amount of oxybutynin is controllably released from the ring (I) for a period of up to 28 days.