my wife is a type 2 diabetic. since taking this med her sugar readings have been high without the usual symptoms of high sugar.
17 Oct 2009
This is taken from the FDA monograph for nitrofurantoin:
"... Drug/Laboratory Test Interactions:
As a result of the presence of nitrofurantoin, a false-positive reaction for glucose in the urine may occur. This has been observed with Benedict’s and Fehling’s solutions but not with the glucose enzymatic test. "
The above refers to urine testing not blood testing. Check with your doctor if you are unsure.
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.
I know that amoxicillian can cause a false positive on a urine test, can nitrofurantoin also cause a false positive too?
1 answer • 13 Sep 2009
I am taking phentermine, will my blood glucose reading be affected
1 answer • 9 Jul 2010
I am a new Metformin user (850mg twice daily). My glucose level has been averaging 250 in the morning - before breakfast. I took the first pill last ...
1 answer • 1 Aug 2010
I take my dilantin regularly but then continue with seizures and when a dilantin level is done it is below 10. My blood glucose has been elevated 6 ...
1 answer • 5 Oct 2010