OTC HAIR test for illicit drugs, PDT-90

May 1997

    There's also an OTC hair test for illicit drugs, PDT-90.

    Hair testing is easier than urine testing...and it's more likely to detect occasional drug use.

    Urine tests only detect drug use in the past 3 to 4 days... hair tests can detect drug use during the past 3 months.

Get concise advice on drug therapy, plus unlimited access to CE

Pharmacist's Letter Canada includes:

  • 12 issues every year, with brief articles about new meds and hot topics
  • 300+ CE courses, including the popular CE-in-the-Letter
  • Quick reference drug comparison charts
  • Access to the entire archive

Already a subscriber? Log in

Volume pricing available. Get quote