Oral Fluid Drug Testing
Saliva consists primarily of secretions from the submaxillary (65%), parotid (23%) and sublingual (4%) glands.
Detection times for drugs in oral fluids are roughly similar to that in blood (see chart below). Oral fluids normally contain the parent drug substance rather than drug metabolites such as are present in urine.
Collection of oral fluid is generally considered less invasive than either blood or urine, and could be an excellent matrix to tie recent drug use with behavioural impairment.
 Information relating to detection windows can be found in the adjacent table.
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