Guest guest Posted January 22, 2005 Report Share Posted January 22, 2005 Does anyone know which medicinals pose a risk in drug tests (e.g. pre-employmente drug screening)? I assume huo ma ren is a risk. Anyone have experience in this? Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 24, 2005 Report Share Posted January 24, 2005 , " Tim Sharpe " <listserve@d...> wrote: > > Does anyone know which medicinals pose a risk in drug tests (e.g. > pre-employmente drug screening)? I assume huo ma ren is a risk. > Anyone have experience in this? I'm not an expert on drug testing, but I once wrote a paper on potential herb-drug interactions of Chinese medicinals that had some info that may be useful to your question. I looked up a few things on drug testing just now and I can offer some theoretical ideas based on the chemical constituents of common Chinese herbs. Bear in mind that I have no experience in the area of drug testing whatsoever. Firstly, patent medicines may be adulterated with drugs, so we can only realistically deal with known plant and animal substances in their crude forms or extracts, not pharmaceutical preparations of unknown constituents. Apparently the five drug classes that are routinely screened for (the " NIDA-5 " ) are: 1) cannabinoids 2) opiates 3) cocaine 4) amphetamines 5) PCP Of these, cocaine and PCP are not concerns. PCP and related substances are not, to my knowledge, present in botanicals. Cocaine is found botanically only in the coca plant of South America, not anywhere in Chinese herbal medicine. Amphetamine, once believed to be a purely man-made compound, has been found naturally in a tree from Texas, but not in any Chinese medicinals. However, ephedrine has been reported to produce false-positive results for amphetamines, so we can expect that ma huang would be an herb to avoid before a drug test. Phenethylamine drugs are rarely tested for themselves, but it is possible that some phenethylamines may trigger a positive result for amphetamine tests. While there is some evidence (in animals) that the liver can aminize essential oils such as elemecin, eugenol, safrole, asarone, myristicin, etc. into phenethylamines, my brief search on false positives for drug tests didn't implicate such substances. In other words, medicinals such as rou dou kou, xi xin, shi chang pu, and ding xiang are unlikely to produce false positives on drug tests for amphetamines (or the more rare extended tests for phenethylamines such as MDMA). It is theoretically possible that if someone had a high dose of such medicinals and concurrently had the rare and more expensive tests for the drugs that their oils are chemically similar to, then maybe you could get a false positive. I don't know if there is enough known about such things to say one way or the other, certainly I don't know enough myself to say whether it is possible or not. Apparently hemp seed oil can produce false positives for cannabinoids, so huo ma ren is probably something to avoid, although of course it has a negligible quantity of THC. This leaves narcotics. Obviously, ying su ke (qiao)- poppy husk- would produce a positive test result, but it is not legal for internal use in most Western countries anyway. Poppy seeds can apparently produce false positives. Quinolone drugs can apparently also cause false positives. Corydalis (yan hu suo) contains isoquinolones- I don't know whether they are similar enough to be problematic at all. Testing for indole drugs is very rare, although apparently LSD is more commonly tested for now that the test has become less expensive. Qian niu zi is botanically related to Mexican and Hawaiian morning glory seeds that contain LSA (lysergic acid amide), which can cross-trigger a positive test for LSD, but I have never seen any evidence that the Chinese species used as qian niu zi contains LSA. Beta-carbolines (found in herbs such as ren shen, gou qi zi, di fu zi, bai ji li, etc) are not tested for, nor are they illegal to begin with. Methylated tryptamines are likewise not tested for, nor are they even known to be testable, with the exception of psilocybin. Thus, herbs like wu zhu yu (containing 5-MeO-DMT, a non-scheduled drug) and lu gen (containing DMT, a scheduled but not screened drug) should not be a problem. Regardless, none of these things are a concern for general employment testing, they would only show up in hospital tests or tests for criminal cases, parole, etc. With the exception of poppy husk, ephedra, and nutmeg, none of the above plants are known to be psychoactive as single agents or to have any significant potential for abuse. My advice: Don't use illegal drugs if you are going to take a drug test. Avoid huo ma ren and ma huang. There is a great deal of information available on the internet about drug testing. As I said, I gathered all the above info on the drug tests from a few minutes surfing the web just now. It is even possible to buy home kits to drug test your children when they come home from school. Of course, millions of American children are required to take amphetamines in order to attend school these days. Strange world we live in. Interestingly, I once saw an herbalist dispense a formula for a customer who had to take a drug test that he evidently was concerned about. I thought the guy was crazy for seeking a Chinese herbal formula for a situation that surely never existed in the development of Chinese medicine. I told him that I thought it was extremely risky to use a Chinese formula to mask a drug test, especially if employment or legal sanctions hinged on the result. He wanted to take the chance. I saw the same customer about a year later and asked him how it went. He passed. Said it worked like a charm. Go figure. 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