A nurse is reinforcing teaching to a female client who has acute cystitis and is to start therapy with phenazopyridine (Pyridium). Which of the following information should the nurse give to the client?

A. Phenazopyridine can be taken with food or after meals to reduce gastrointestinal upset such as nausea or stomach discomfort. There is no clinical requirement to take it on an empty stomach, so emphasizing this would be unnecessary and potentially confusing for the client. B. Phenazopyridine does not interfere with hormonal or barrier contraceptives, and it does not affect fertility or pregnancy risk. Advising additional birth control is unnecessary unless other medications or clinical circumstances warrant it. C. Phenazopyridine is a urinary tract analgesic, meaning it relieves symptoms such as burning, urgency, and frequency but does not have antibacterial properties. Completing the course of phenazopyridine will not resolve the underlying infection; the client must complete the prescribed antibiotic therapy to eradicate the causative bacteria. D. One of the most common effects of phenazopyridine is that it changes the color of urine to a bright orange or reddish hue. This effect is harmless and temporary but can alarm clients if they are not informed. Teaching the client about this expected change helps prevent anxiety, misunderstanding, or unnecessary concern when the urine appears discolored.