Final answer:
Carbidopa-levodopa use can cause a harmless urine color change due to the breakdown products of red blood cell destruction.
Step-by-step explanation:
Carbidopa-levodopa, a medication used in the treatment of Parkinson's disease, can cause changes in urine color.
Although not a common side effect, some individuals taking carbidopa-levodopa may notice a harmless darkening of their urine. This is typically due to the breakdown products of red blood cell destruction, which can affect the color of urine.
It is important to note that changes in urine color should always be discussed with a healthcare professional to rule out any potential underlying issues.