- Males must agree: to use a condom during any sexual contact or practice complete abstinence from heterosexual contact with a pregnant female and a FCBP while participating in the study, during dose interruptions and for 28 days following discontinuation from this study, even if he has undergone a successful vasectomy, to refrain from donating semen or sperm while on Pomalidomide and for 28 days after discontinuation from this study treatment.