<s>[INST] hi, I am 33 years(female), 50kg,my doc advised to take susten 100 as its my 25th day, i want to know how to use suten100, can i have sex while using it [/INST] hi u should use it once daily or twice a day. u can sex while using it mainly it is use for safe pregnancy ask ur doc why he has given it. its progesterone tab. </s>