A member asked:

Just started macrobid yesterday for uti. urine is now a dark yellow or brown, could this be side effect of the antibiotics? it just started doing that. thank you?

Q: just started macrobid yesterday for uti. urine is now a dark yellow or brown, could this be side effect of the antibiotics? it just started doing that. thank you?

: Yes, that is a known effect of nitrofurantoin (Macrobid) that can turn urine dark, orange to brown, effect that dissipates away after completing antibiotic course.

A doctor has provided 1 answer

Dr. Silviu Pasniciuc answered

Specializes in Internal Medicine

Yes, that is a known effect of nitrofurantoin (Macrobid) that can turn urine dark, orange to brown, effect that dissipates away after completing antibiotic course.

Answered 11/20/2021

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A member asked:

Just started macrobid yesterday for uti. urine is now a dark yellow or brown, could this be side effect of the antibiotics? it just started doing that. thank you?

A doctor has provided 1 answer

Dr. Silviu Pasniciuc answered

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