
Single Panel Drug Test Dip Card
Dip Card EDDP/100. Serenity Instant Urine Drug Screening Card
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| FDA Approved/ CLIA Waived Cutoff level | |
| EDDP | |
| 100ng/ml | |
| Choose Quantity | Price per cup |
About this test
EDDP Dip Card – Methadone Metabolite Urine Test (100 ng/mL)
This Serenity single-panel EDDP dip card detects EDDP, the primary metabolite of methadone, at a 100 ng/mL cutoff. Because EDDP is only produced when the body actually metabolizes methadone, this test helps confirm that methadone was taken – not just added to the sample.
Features
- Detects EDDP, the main methadone metabolite, at a 100 ng/mL cutoff
- Confirms methadone ingestion – helps identify spiked samples
- Results in about 5 minutes
- Dip-and-read design – no droppers or pipettes needed
- FDA cleared & CLIA waived for point-of-care screening
- Individually sealed single-panel card with protective cap
- As low as $0.33 per test with volume pricing, same-day shipping

At a Glance
| Test strip | |
| Drug detected | EDDP (Methadone Metabolite) |
| Cutoff level | 100 ng/mL |
| Typical detection window | About 3–4 days after last dose (up to about a week with daily maintenance dosing)* |
| Specimen | Urine |
| Read time | 5 minutes (do not read after 10 minutes) |
| Format | Single-panel dip card with cap, individually sealed foil pouch |
| Regulatory status | FDA cleared / CLIA waived |
*Detection windows are approximate and vary with dose, frequency of use, metabolism, hydration and kidney function.
What Is EDDP?
EDDP (2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine) is the major metabolite formed when the liver breaks down methadone. It is excreted in urine along with methadone itself.
Why Test for EDDP?
Opioid treatment programs and methadone clinics use EDDP testing to verify medication compliance. A methadone-only test can be fooled if methadone is dropped directly into a urine sample, but EDDP only appears after methadone has passed through the body. EDDP testing is also helpful when other medications change how quickly a patient metabolizes methadone.

How to Use the EDDP Dip Card
- Remove the dip card from the sealed foil pouch and take off the cap.
- Dip the exposed test strip into the urine sample for 10–15 seconds.
- Allow the urine to migrate up the test strip.
- Replace the cap and lay the dip card flat on a clean, dry, non-absorbent surface.
- Read the results at 5 minutes. Do not read after 10 minutes.
How to Read EDDP Dip Card Results
Positive
Only one colored line appears, in the control region (C). No line appears in the test region (T). This means EDDP was detected at or above 100 ng/mL.
Negative
Two colored lines appear: one in the control region (C) and one in the test region (T). Any line in the T region, even a very faint one, counts as negative.
Invalid
No line appears in the control region (C). Discard the result and repeat the test with a new dip card. If the problem persists, stop using the lot and contact 12 Panel Now.

EDDP Dip Card – Frequently Asked Questions
What is EDDP and why test for it instead of methadone?
EDDP is the main metabolite of methadone. A standard methadone (MTD) test detects the drug itself, which can be added to a urine sample to fake compliance. EDDP is produced only when methadone is metabolized by the body, so a positive EDDP result shows the methadone was actually taken.
What does it mean if methadone is positive but EDDP is negative?
This pattern can be a sign that methadone was added directly to the urine sample (spiking) instead of being taken. Because there can be other explanations, review the result together with the patient's history and confirm it with a laboratory test.
How long does EDDP stay in urine?
EDDP is typically detectable for about 3–4 days after the last methadone dose. Patients on daily maintenance dosing can remain positive for up to about a week. Detection time varies with dose, duration of treatment and individual metabolism.
Will heroin, oxycodone or fentanyl show up on an EDDP test?
No. The EDDP test is designed to detect the methadone metabolite. Heroin, morphine, codeine, oxycodone and fentanyl each require their own test – pair this card with OPI or OXY dip cards, or choose a multi-panel dip card.
How do I read a very faint line?
Any visible line in the test region (T), even a very faint one, means the result is negative. The result is positive only when a line appears in the control region (C) and no line appears in the test region (T).
Is a positive result final?
No. This is a rapid screening test that gives a preliminary result. Confirm non-negative results with a laboratory test such as GC/MS or LC-MS/MS before making treatment, employment or legal decisions.
Do I need a CLIA certificate to use this test?
The EDDP dip card is CLIA waived. Facilities that perform clinical testing on patients generally need a CLIA Certificate of Waiver. Contact thestaff@12panelnow.com if you have questions about your use case.
Also Available
- EDDP single-panel dip strips – the same test in single-strip format.
- Multi-panel dip cards – screen for several drugs with one card.
- All single-panel dip cards – build your own drug panel.
The 12 Panel Now Advantage
- Wholesale pricing – as low as $0.33 per dip card with volume discounts.
- Same-day shipping on in-stock orders from our U.S. warehouse.
- Free shipping on 100+ dip cards; flat rate of $4.99 on smaller orders.
- Resellers & drop shipping – bulk, private label and drop-ship programs available.
Clinical Use Product
This dip card is FDA cleared and CLIA waived, making it suitable for point-of-care screening in physician offices, clinics, treatment programs and workplace testing programs when used according to the package insert. Facilities performing clinical testing may need a CLIA Certificate of Waiver.
Screening results are preliminary. Confirm non-negative results with a laboratory method such as GC/MS or LC-MS/MS. This device is not designated for forensic use.
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