I was having frequent urine infections since 15 years every two years I have the infection and blood used to go in the urine. now it has reduced since 3 years. I had histroctomy 3 years back and last year I suffered herpis and was treated. now recently my urine examination showed plenty of pus cells in the report when I went with some back pain, hypertension, bronchities etc. to a physician. he prescribed Cifran 500 mg two time a day for 10 days and then Niftran 100mg daily night for 10 days. How safe to use the antibiotics for such a long time for my. I am a hypertension, angina,bronchities and obesity person. Is is safe to use Niftran 100mg now. please advise.