PharmChek® Sweat Patch Upheld, US Court of Appeals, 8th Circuit, 2007

PharmChek® has been upheld as a valid and reliable testing methodology in over 50 state and federal courts, including the 8th Circuit Court of Appeals, by The Honorable Sandra Day O'Connor, Associate Justice of the United States Supreme Court, (Ret.), sitting by designation, pursuant to 28 U.S.C. § 294(a).

PDF Training Manual PharmChek® Drugs of Abuse Sweat Patch PDF Technical FAQ PharmChek® Drugs of Abuse Sweat Patch

The PharmChek® Sweat Patch (or Drug Patch) by PharmChem, Inc. is worn on the skin for up to 10 days or longer and uses sweat as the specimen source. PharmChek® not only acts as a deterrent to continued drug use, but also offers the following advantages:

  • Increased window of detection
  • Can be used as both a reward or a sanction
  • Detects parent drug and drug metabolite
  • Variable removal date
  • Quick application & removal
  • No urine collections
  • No undetected substitution, dilution, or adulteration 
  • Gender indifferent

PharmChek® 50 Patch Kit by PharmChem, Inc.: 

Catalog #N218 Kit includes 50 patches plus all the supplies for the application and removal of the PharmChek® Sweat Patch. 

***Laboratory analysis is sold and billed separately.

PharmChek® 10 Patch Kit by PharmChem, Inc.:

Catalog #N214 Kit includes 10 patches plus all the supplies for the application and removal of the PharmChek® Sweat Patch. 

***Laboratory analysis is sold and billed separately.

PharmChem's PharmChek® Specimen Container For Collection; a Class I & II Device:

Cleared by the FDA on October 4, 1990, this vessel has been proven as a non-invasive tool to collect excreted sweat for testing in clinical trials and research studies. 

The Sweat Patch Specimen Container Device can be purchased in quantities of 50. Contact us / Request a Quote to obtain more information. 

***Laboratory analysis is not included.

More About PharmChek® Drugs of Abuse Sweat Patch

  • Non-occlusive, hypoallergenic collection device.
  • Cleared as a collection device by FDA on October 4, 1990.
  • For the detection of Cocaine, Opiates (codeine, morphine, heroin), Amphetamine, Methamphetamine, Marijuana, and Phencyclidine. 

PharmChek® is a drug sweat patch worn on the skin surface that acts as a specimen container for the non-volatile and liquid components of sweat. 

For the foregoing reasons, this Court finds by a preponderance of the evidence that the PharmChem sweat patch drug testing device is a reliable scientific method for testing for the presence of controlled substances, including methamphetamine, as it was utilized during the periods in question...

Excerpt from the decision in U.S. v. Stumpf