I took Bactrim every day for 7 months with no problem. They had me on it because of Cytoxin (for lupus nephritis) when my WBC would drop below 2. It usually either fought what I had or prevented me from getting sick. As Lynnwood said, you will only know how it affects you until you take it. I sure hope you dont have a reaction to it. I have found with me personally, you don't get the normal side effects with Bactrim as other antibitiotics sunch os Cipro or Levaquin!!
Good Luck :)
Kidney Diseases & Disorders and Lupus Moderater
Cyclosporine, Prednisone, Lisinopril, Mobic, Vitamin D 50,000 units
PRN: Imitrex, hydrocodone, Ambien, Flexeril, Ultram,
If God brings you to it, he will get you through it!!