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Pharmacy/thc drug testing


if you mix your thc positive urine with someone elses urine which is negative, will your urine come back negative


It all depends on what volumes of each sample you mix. Equal volumes will reduce the THC concentration by half (assuming the other sample is clean). A 3:1 ratio will reduce levels to 25% and so on.

However, you need to consider the implications if you (or whoever) is caught cheating on samples. Is the penalty worth the risk?  


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Nigel Simmons


I am happy to answer general questions on medicines and hospital care. If possible, please use approved / chemical names rather than brands which are not internationally recognised. Like all health professionals I am bound by a duty of care which prevents me giving detailed information about medication or treatment of people other than the questioner. I will endeavour to help wherever possible or point towards more appropriate advice. If however your question crosses too far into patient confidentiality, I hope you will understand why I cannot answer your question. Consider.. would you want me to discuss your care with a friend or relative without your knowledge?


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