Home/Q&A/General Health

Why does my urine turn bright yellow after taking cold medication?

A
AnonymousVerified User

Male / 252026. 03. 10.

I'm a 25-year-old male. After taking prescribed pills and syrup for a cold, I noticed my urine has turned a very dark yellow. I've been drinking plenty of water, but the color remains intense. Is there a problem?

#Urinary Color#Medication Effects#Kidney Function
Verified Specialist Answer
J

Je-man Ryu

Goldman Urology

Director, Goldman Urology Seoul Station

This is a very common side effect of certain medications, particularly those containing Vitamin B (Riboflavin) or specific dyes used in syrups. As these components are metabolized and excreted through the kidneys, they can intensely color the urine. It is generally harmless and should return to normal once the medication is stopped.

* This answer is based on medical documents and cannot replace an actual diagnosis.

Was this helpful?