The PharmChek® Sweat Patch Drug Test provides continuous drug monitoring for individuals over a 7–10 day wear period. Unlike urine tests that capture only a single point in time, the sweat patch collects evidence of drug use throughout the entire monitoring period, making it an effective solution for probation programs, drug courts, treatment providers, parole agencies, and compliance monitoring programs. A sweat patch with extended opioid panel is available.
What is a Sweat Patch Drug Test?
The patch consists of an absorbent collection pad secured to the skin with a tamper-evident adhesive film. If drugs are used while the patch is worn, drug metabolites are deposited in sweat and captured within the collection pad for laboratory analysis.
Every test includes certified laboratory screening and confirmation using highly accurate LC/MS/MS technology. The patch is water-resistant and designed to remain in place during normal daily activities, including bathing and exercise.
What drugs are detected using the Standard Panel?
- THC
- Cocaine
- Opiates
- Amphetamines
- Methamphetamines
- PCP
- Hydrocodone
- Hydromorphone
- Fentanyl (available as an add-on)
Why Choose a Sweat Patch?
- Continuous monitoring for 7–10 days
- Detects drug use throughout the wear period
- Resists common forms of adulteration and tampering
- Water-resistant design for daily wear
- Laboratory screening included
- LC/MS/MS confirmation testing on non-negative results
- Accepted by courts, probation departments, treatment programs, and compliance agencies
- Simple application and removal process
Applications for Court-Ordered and Compliance Monitoring
The Sweat Patch drug test system is intended for forensic use only and is ideal in these environments:
- Probation and parole programs
- Drug and accountability courts
- Drug diversion programs
- Child welfare agencies
- Court-ordered substance abuse treatment
- Re-entry programs
Drug Testing Mediums Comparison Chart
| Test Type | Detection Window | Tamper Resistance | Best Use Case |
|---|---|---|---|
| Sweat Patch | 7–10 Days Continuous | High | Probation, Courts |
| Urine Test | 1 Collection Event | Moderate | Workplace Testing |
| Oral Fluid Test | 24–48 Hours | Moderate | Recent Use Detection |
| Hair Test | Up to 90 Days | High | Historical Drug Use |
Resists Tampering and Adulteration
None of the common methods used to defeat urine drug testing are effective with the sweat patch. Drinking fluids and ingesting cleansers have no effect on the sweat patch. High Times magazine gave the sweat patch an unintentional endorsement when it advised readers to avoid wearing the patch if possible.
Includes Laboratory LC/MS/MS Confirmation Testing
All PharmCheck sweat patch drug tests include laboratory screening by a certified lab. Cutoff levels correspond to levels of detection in urine. Non-negative screening results are confirmed using the platinum-standard LC/MS/MS methodology to produce evidential-quality results. The sweat patch has a long history of successful defenses against court challenges.
PharmChek Sweat Patch Training Videos
Certification Exam
The Sweat Patch certification exam is available for AlcoPro customers only. You will need a password to take this exam and can request your password through the instant chat feature, email [email protected] or by calling us. Upon verifying your customer account, you will receive an email with your password. Before taking the exam, please review all of the training videos.







Question
Maria –
What happens when there is a false positive results in testing?
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Question
shawn –
how accurateb are these ? my son is still showing positive and he has been clean over a month
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Admin Jennie Lee-Pace –
The sweat patch absorbes the sweat that contains the metabolite for cocaine. Refer to our drug detection window to see how long that drug may be detected through sweat. https://alcopro.com/resources/window-of-detection-tool/
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Abraham –
Does the patch respond different for an active person who sweats alot vs an inactive person who never sweats?
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Admin Jennie Lee-Pace –
It does not differ in terms of being able to catch the drug metabolites. We do recommend using the sweat patch overlay for people who excersize a lot to ensure the patch stays on during riggorous workouts. https://alcopro.com/product/pharmchek-sweat-patch-overlay/
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Wendy Jensen –
Can you buy to put on your children?
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Admin Jennie Lee-Pace –
Hi Wendy.
These are only for professional use and not for sale to the general public. The sweat patch can only be purchased by a substance abuse treatment professional or probation or drug court officer. We check all orders to make sure these are only being sold to drug testing professionals.
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Question
Annette –
Why would the patch not stay on? This is 3rd patch with no tampering comes off slowly.
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Jennie Lee-Pace –
Annette.
There could be a couple of reasons. You should avoid wearing lotions in advance of the patch being applied so the skin is clean and free of oils and residues. We also recommend the overlay for individuals who do heavy workouts.
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Question
Roman –
Does the patch test for alcohol?
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Jennie Lee-Pace –
It does not test for alcohol.
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