Hi there, I am a 51 year old who s period s have become a little irregular, which I assume at my age, is normal. However, my gynae has twice now put me on duphaston - the first time what toward the end of last year and now again in April. I am to take a 10 day course beginning 18 April, 18 May and 18 June. The first month, my period arrived about 5 days after the last tablet, however after finishing the course in May, my period only arrived yesterday, the 12th June. She has instructed me to continue with the 18 June course. My question is what is the reason for prescribing this medicine at my age, and are there any adverse affects, again, esp at my age? Many thanks.