“…Numerous drugs are detectible in oral fluid, and can even be quantified in saliva as a viable substitute for testing in blood, and, as a result, salivary diagnostic technology is currently utilized to test for drugs of abuse, such as cocaine (50, 94), methamphetamines (44, 93) and opiates (20). Additionally, testing of saliva can also be used for therapeutic monitoring of drugs, such as digoxin (19, 108), methadone (17) and some anticonvulsants (34).…”