If Adderall is used over a long time frame dependency can occur, if dependency occurs you could suffer withdrawal when stopping. &0183 &32 How Long Does Adderall Stay in Your System Upon entering the bloodstream, amphetamines such as Adderall can last about four to six hours while feeling the desired effects. Misusing or abuse of Adderall may cause serious or even fatal blood pressure and heart problems. If you just ingested the drug right before the test, it might take 15 minutes to one hour for it to be detectable by a saliva test. These tests are able to detect the drug for around 2 days, or 48 hours. This form of testing will also indicate if this is normal prescribed use or if it is abuse. 2 days ago &0183 &32 How Long Does Adderall Stay in Your Saliva Saliva tests are commonly used by police officers in the field and in other scenarios. A blood test can also distinguish the difference between levo-amphetamines and dextro-amphetamines this determines if the person is taking a mixture of amphetamine salts, such as Adderall, or a single-salt dextro-amphetamine such as Vyvanse. As hair grows on average at ½ inch per month, shorter hair has a better chance at a negative test.īlood test: A blood test, the most accurate test for Adderall, has the shortest time span for detection – only 12 hours. Detection of Adderall in the hair can be up to 90 days from last use. Growth is considered from the base of the scalp to 1 ½ inches of length. Hair test: When a hair test is used, it will often require 1 ½ inches of hair growth from the person being tested. The detection time of Adderall may be as little as a few minutes to 3 days from consumption. If you take Adderall XR or extended-release version of the drug, you can feel the effects for up to 12 hours. Saliva can retain trace amounts of drugs and their ensuing metabolites from 24 to 36 hours. &0183 &32 If you take the Adderall immediate release or also known as Adderall IR, then you will feel the effects for 4 to 6 hours. Saliva test: Also known as oral fluid drug testing.