Which Drugs Don’t Show Up on Panel Drug Tests

Drug tests are extremely common in rehabs, IOP, sober communities, and halfway houses. There are many variants of drug tests that can detect many different substances. The most common form is a urinalysis 10 or 15 panel drug test. These are cheap and effective, and they work in minutes. The downside is in today’s age, there are too many drugs to count that give the user a mind-altering high. Some of these drugs can be detected in labs, but this can be very expensive and time-consuming. If there is suspicion of a specific drug being used, the tester can send a sample to a lab and test for that specific compound, which won’t be as expensive.

10 Panel Drug Test

A common and cheap drug test is the 10 panel urinalysis. This test usually detects Amphetamines (Adderall), Barbiturates, Benzodiazepines, Buprenorphine (Suboxone/Subutex), Cocaine, Marijuana, Methamphetamines, Methadone, Opiates (Heroin/Morphine), and Oxycodone (OxyContin/Vicodin).

These drugs are the most common and the most desired. Rather than using drugs that do not show up on a 10 panel test, users will often try to cheat the tests. Fake urine or tampering is common, or even just using in between tests. If possible, it is best to not let the user know which drugs are on the test or how many panels. This will give them an edge if they want to beat the test. Another way to combat drug test cheating is to purchase 1 panel dip-stick tests. These test for a single substance and work similarly to test cups. The stick is dipped in the urine and works in minutes. Common dipstick tests are for Spice “synthetic marijuana” and fentanyl. A common opioid not on this test is Tramadol.

15 Panel Drug Test

The 15 panel test is another common test but is usually slightly more expensive but tests for 5 more substances. These tests also can find the list mentioned above, in addition to MDMA, Methaqualone (Quaaludes), Tramadol, PCP, and Meperidine (Demerol). These tests may be worth the extra buck because it is often rumored that Tramadol and Demerol do not show up on drug tests. Though 15 seems like a lot, there are still countless drugs that are nearly impossible to detect.

Some 15 panel tests include alcohol, but a breathalyzer would be a more accurate investment. Alcohol urine tests have a high risk of false-positive screenings.


If you didn’t notice, there are no psychedelic drugs mentioned above. Psychedelic drugs are extremely difficult to test for, if not impossible. They are never included on urinalysis instant drug tests. These include but are not limited to drugs like LSD, psilocybin mushrooms, DMT, mescaline, and peyote. Some of these can be detected through hair samples, but this is expensive and time-consuming. Fortunately, it should be very obvious if a person is abusing these drugs.

Psychedelic drugs severely impair an individual. In rehab it would be extremely difficult to get away with “tripping” and a drug test probably wouldn’t be needed anyway. If you need hardened proof, then a hair or DNA test would be the best bet.  

rapid drug tests

Research Chemicals

Research chemicals are the most commonly used drugs to beat a drug test. They are common in sober communities and with people on probation. There are nearly an infinite number of research chemicals and every year, new ones are created. These are the chemicals found in “bath salts” and “spice.” They are referred to as designer drugs because they can mimic the effects of almost any substance and are constantly being changed or improved. These drugs are very cheap and offer a powerful high.

There are hundreds of these drugs so it would be impractical and extremely expensive to attempt to put them on panel drug tests. These drugs are extremely addicting, so over time it most likely will become obvious if a person is using these drugs. If you have an idea of a specific drug being used, it can be sent to a lab. Unfortunately, though, there are so many of these drugs that many labs aren’t even testing for them all. It can be impossible to figure out what drug is being used, or even if it is formally illegal. These drugs are challenging because many are unregulated and even sold in head shops or gas stations.


Kratom is a fairly new drug that does not show up on a drug test. Kratom is a plant that mimics the effects of opioids. It is very common in sober communities because it offers an opioid-like high and can beat drug testing. It is also legal in most states, so it is sold in head shops and convenience stores. It can also be easily bought online. A lab can find Kratom, but this is time-consuming. If you suspect a person is on Kratom, look for the typical signs of an opioid high (constricted pupils, decreased motor skills, mumbling, nodding).  

Seeking Treatment for Alcoholism and Addiction

If you or a loved one has a problem with alcoholism or addiction and want to experience recovery in a thriving community with lots of people just like you, then call the professionals at Stout Street today at 866-722-7040. Our trained staff is standing by to take your call and help you in any way we can. We know how difficult of a decision this can be and we know what it takes to ensure you find your own person path in recovery.  You no longer have to do it alone, so give us a call today and find the happy and sober life you’ve always dreamed of.