Why Is My Urine Yellow-Green After Taking Nitrofurantoin the Next Day?

1. The next day after taking Nitrofurantoin, the urine turns yellow-green, which is generally a normal reaction.

2. Nitrofurantoin is mainly used to treat acute cystitis, acute urethritis, and other diseases caused by acute uncomplicated lower urinary tract infections. Taking Nitrofurantoin helps eliminate bacteria such as Escherichia coli, Enterococcus, Staphylococcus, Klebsiella, Enterobacter, and others in the body, and alleviates symptoms such as frequent urination, urgent urination, painful urination, urethral itching, and lower abdominal pain.

3. Since Nitrofurantoin itself is yellow or orange in color, after the drug components enter the body, they are metabolized by the kidneys, which may result in the urine turning yellow-green. This is usually a normal reaction. After discontinuing Nitrofurantoin, the urine color will return to normal, so there is no need for excessive concern. For acute uncomplicated urinary tract infections, drugs such as Cephalexin Capsules, Compound Sulfamethoxazole Tablets, and Levofloxacin Hydrochloride Tablets can also be taken under the guidance of a doctor.

4. If the urine color remains yellow-green after discontinuing Nitrofurantoin, it may indicate that the urinary tract infection has not resolved. It is recommended to seek medical treatment promptly.