I m not comfortable taking this medication. I m 69 years old, and in the last two months have felt dizzy, and at one time also out of breath. Also, I have a slow thyroid which the doctor doesn t feel has to be treated, but I have many of its symptoms, including depression, joint pains, etc. I also suffer from IBS. This medication was prescribed to me for a UTI. I m supposed to take it 2x a day for 3 days.