My wife is 36 weeks pregnant. Doctor has now given duvadilan retard once daily. He advised to take two doses of inj. betnesol 12 mg next week. He will then decide the date of c section delivery. Since it is still one month to come the due date can these medicines be taken safely? He wants to go for c section between 37 and 38 weeks of gestation. My question is can we wait for one more week after taking the said injection? What is the purpose of the injection betnesol and cap duvadilan retard?