###Human: I am seven weeks pregnant. Can I take both Susten and Duphaston? ###Assistant: Hello. As you had previous miscarriages and ectopic pregnancy, your doctor might have prescribed all these tablets for the maintenance of pregnancy and to prevent abortion. As Susten (natural micronized progesterone) and Duphaston (Dydrogesterone) both are progesterone with the same action, you can go for any one drug. Susten is preferable as it is natural micronized progesterone and category B drug in pregnancy. You have to take these tablets until the viability of pregnancy that is around 28 to 30 weeks.