- Women of child-bearing potential must agree to use a medically accepted method of contraception prior to screening, while receiving protocol-specified medication, and for six months after stopping the medication. Acceptable methods of contraception include abstinence, condoms (male or female) with or without a spermicidal agent, diaphragm or cervical cap with spermicide, medically prescribed intrauterine device (IUD), oral or injectable hormonal contraceptive, and surgical sterilization (e.g. hysterectomy or tubal ligation).