Fludrrortisone .some tmi that m that medicine for me made my headaches 10 times worse or it gave me migraines where I threw up in vomit. Be careful if your headaches get worse tell your doctor right away. There is another medicine out there called midodrine and you take it at half an hour before you get up and you can take it up to four times a day but you do got to drink lots of water with it and lots of salt so that might help that might be another option for you and that one does not cause headaches. I hope you don't have a bad time with this medicine best of luck.