Can phentermine cause blood in urine and/or a strong foul odor?

I have been off & on diet pills majority part of my life. When I was younger (ages 18-30), I never had any issues. However, now that I am in my late 30's I am experiencing different symptoms. I went to a diet doctor a year ago. He prescribed me different meds. Phentermine was one of them. I noticed I had blood in urine & spotting in between periods. I went to my gynecologist, did several exams, including a vaginal u/s. Everything was normal. I had been off the pills for about a year now. I recently started back on them, and I started the same symptoms up again! It has to be something in the phentermine.

It sounds like you do have a UTI, Kidney infection or possibly Bacterial vaginosis. I don't think the phentermine is causing the smell. I took it and did NOT have this problem, but I guess it is possible. Have you been checked for a kidney infection, it is not exactly a UTI, it is further up in the body, but would produce back pain and possibly foul smelling urine and could have traveled up the body from the urinary tract, or be traveling down. E-coli is pretty basic cause of UTI's. Have them culture your urine, check you for BV and a kidney infection. BV causes a smell in the urine or vaginal area also. You could have a couple of things going on, hope you get it cleared up soon, not good to let any of these things go untreated. Hope you are better soon.