OrAlert Saliva 6 Panel Drug Test Kit (THC,AMP,MAMP,COC,OPI,BZO) - 15 Pack by OrAlert. $158.05. OrAlert saliva swab test will accurately detect the presence of up to 6 different substances. OrAlert swab tests are much cleaner, without the risk of coming into contact with a urine sample. This test will check for marijuana, amphetamine, cocaine, methamphetamine, opiates, and benzodiazepine.