Does a single tablet of sulfatrim DS taken to prevent a urinary tract infection before the withdrawal of a probe can cause side effects such as diarrhea?

The doctor said, "It is unlikely that you will experience side effects such as diarrhea after taking one tablet of the antibiotic. Taking one tablet has a much smaller impact on the bacterial flora of the intestine than taking a full course of antibiotics. Therefore, I would not be concerned about this situation. If you do not take the tablet out of fear of side effects and end up developing an infection, you will likely need to take a full course of antibiotics."