<qa>  What is the term for a lifestyle of abstinence from sexual activity?3. Pregnancy, intention to become pregnant or failure to agree to use adequate contraceptive measures during the trial for females of current reproductive potential.Medically acceptable contraceptives include: 1 surgical sterilization such as tubal ligation or hysterectomy, 2 approved hormonal contraceptives pills, patches, implants, or injections, 3 barrier methods condom, diaphragm used with spermicide, or 4 intrauterine device IUD. Contraceptive measures such as Plan BTM, for emergency use after unprotected sex, are not acceptable methods for routine use. A lifestyle of abstinence from sexual activity is an acceptable means of contraception. If currently abstinent, the subject must agree to use a double-barrier method as described above if they become sexually active during the study period. 