- Pregnancy (Female subjects who are not surgically sterile or post menopausal (defined as aged 55 years or older and/or at least 2 years have elapsed since the last menses) or who are not using medically acceptable methods of birth control during and for 30 days after the treatment period. Acceptable methods of contraception would be a barrier form of contraception, oral contraceptive pill, contraceptive injection or implant or intrauterine implanted device.