Riboflavin is likely safe for most people. In some people, Riboflavin can cause the urine to turn a yellow- orange color. When taken in high doses, Riboflavin might cause diarrhea, an increase in urine, and other side effects.
Riboflavin is likely safe for pregnant or breastfeeding women when taken in the amounts recommended.
Riboflavin is non-toxic. No warnings or precautions have been established .
Vitamin-B preparations
Store at a cool and dry place. Protect from light.