Does hydrochlorothiazide show up in a urine drug screen?

Hydrochlorothiazide (HCTZ) is detectable in a urine screen for many days after the medication has last been ingested. The drug screen must include a test for the HCTZ for it to be detected. This test is commonly included in drug screens as some people will use HCTZ in an attempt to flush illegal substances from their system. HCTZ is a prescription drug, although, it is not a "controlled substance."