- If a fertile male, must be using 2 approved contraceptive methods (a condom and a spermicidal agent, even if the partner is using birth control) for the duration of the study and for 3 months following participation in the study and further agree to not donate sperm for 3 months after participation in the study. Must have a negative urine test for drugs of abuse and a negative ethanol breath test at screening and before each dosing period