Adipex can be detected in the blood, urine, and hair. Can you flush valium out your system detailed and covered every aspect. I have no other medical problems. How long will Valium remain in the system? You can get a special chewing gum called Oral Clear, which can mask drug toxins for up to 30 minutes. Your in a tough situation, Best bet is to keep a 1 hour detox handy, just in case. Adipex is detected for one to four days by the SAMSHA 5-panel’s amphetamine test.