<s>[INST] Due to increase in weight for past 1 year i am getting irregular periods.. Before that for me it was 32 day regular interval cycle.. Went to doctor: Suggested to put Folic Acid and Livogen for 30 days.. can i use regestrone to regular the periods..Now i am in Weight loss diet program too.. [/INST] Hello, Regestrone is a synthetic progestin. It works by mimicking the effects of natural progesterone. It helps regulate your periods. You can use Regestrone along with your weight loss program. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr Prabhash Verma, General & Family Physician </s>