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Saliva test â Cocaine is detectable in saliva after 5 to 10 minutes of taking the drug. It may be detected in saliva till 2 to 4 days. Urine test â Detectable after 2 to 5 hours of use, till a period of 3 to 4 days.Blood testing is more specific. The drug is detected after 5 to 6 hours till around 5 to 7 days or even more.t may be detected in saliva till 2 to 4 days. Urine test â Detectable after 2 to 5 hours of use, till a period of 3 to 4 days. Blood testing is more specific. The drug is detected after 5 to 6 hours till around 5 to 7 days or even more.
Cocaine levels peak in the blood about 30 minutes after you take it. But cocaineâs action in and on the body depends upon several factors. Dosage, mode of administration, single vs. multiple use. But in general, cocaine and its metabolites stay in the system and can be detected 2-4 days after use.More on cocaine half life, peak levels, and drug testing for cocaine here. Please leave your questions or feedback about cocaine in your system in the comments section below.osage, mode of administration, single vs. multiple use. But in general, cocaine and its metabolites stay in the system and can be detected 2-4 days after use. More on cocaine half life, peak levels, and drug testing for cocaine here.