• How The Sweat Patch Works

    PharmChek® captures insensible perspiration, the uncontrolled loss of sweat from the skin, in an absorbent pad that ...

  • Understanding Results

    PharmChek® is a collection device designed to retain evidence of drug use and offers a better, cleaner, smarter alternative to urine testing.

  • News & Updates

    PharmChek Drugs of Abuse Sweat Patch news.

  • Research Articles

    Research and scientific articles on the PharmChek Drugs of Abuse Sweat Patch.

  • Technical / FAQ

    Do you have questions about the PharmChek® Drugs of Abuse Sweat Patch? Find your answers here. 

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  • Sweat Patch vs Urine Test

    The PharmChek® Drugs of Abuse Detection Patch is a successful and economical alternative to urinalysis and provides distinct advantages over drug testing using urine.