Can I take a urine drug test while on my menstrual cycle?

Yes.

It will not effect the results.

The only direct policy statement on this issue is from Redwood Toxicology: See Adulteration "(6) Visible Blood: Indicates the presence of blood in the urine specimen. The presence of blood in the urine sample may adversely impact the testing process and, in addition, constitutes a biohazard for laboratory employees. Collection of clean catch urine specimens during menstruation should be attempted."

If u use someone's clean urine for a drug test and your menstrual blood gets in the test and you've taken adderall the day before will it show up?