Which statement is true regarding urine discoloration caused by Nitrofurantoin?

Urine discoloration caused by Nitrofurantoin is a well-documented phenomenon and is primarily due to the drug's metabolites. When Nitrofurantoin is broken down in the body, it can produce a yellow to brown color in the urine, which is a harmless effect of the medication. This change is a normal result of the drug's metabolism and does not indicate a harmful reaction or any medical complication.

In contrast, if urine discoloration were associated with an allergic reaction, such as with choices suggesting an allergic response or requiring urgent medical attention, it would typically include other symptoms such as rash, itching, or breathing difficulties, rather than just urinalysis changes. The presence of discoloration alone doesn't imply a urinary infection; therefore, the notion of it suggesting a urinary infection is misleading without additional clinical signs. The harmless nature of this urine color change is important for patients to understand so they can continue their treatment without unnecessary worry.