How long can metformin be detected in a urinalysis?
A 500 milligram dose of metformin is removed by the kidneys in about 24 hours. It would be undetectable in about 48 hours.
Urinalysis or a urine sample, is usually more of a preliminary step for detecting the use of narcotics in a human Urinalysis will detect the evidence that narcotics have been taken within 4-6 days. A blood test is much more in depth and information about the current use of narcotics. Such as the name, amount, and aprox time taken of any narcotics detected in the Urinalysis.