Common "Drug Test" queries answered by top doctors | iCliniq

Drug Test

A drug test or drug screen helps detect the presence of certain illegal drugs or prescription medications in saliva, blood, urine, hair, or perspiration. Urine testing is the most commonly done drug testing because of its ease and faster results. Drug testing has various uses such as probation, legal or forensic purposes, custody, divorce, employee testing, court-ordered testing. Sports organizations also use it to check whether athletes have used performance-enhancing drugs. The most often tested substances include alcohol, steroids, amphetamines, barbiturates, cocaine, marijuana, and phencyclidine.

Recently Answered Questions Recently Answered Questions

All the answers published on this website are written by verified Health and Wellness Experts and Therapists. The Content has been moderated by the iCliniq Content Review Team before publication. Post your health questions on iCliniq-Wellness by choosing the right Wellness Specialty and get them answered. Your queries will be answered 24/7 by top Wellness Experts from iCliniq-Wellness.

I take 5 mg of Dextro-amphetamine, and the drug test threshold is 1000 ng/mL. Is it normal?

Query: Hi doctor, I take 5 mg of Dextro-amphetamine (low-dose Adderall) daily as prescribed. I have to take a monthly drug test. However, my results consistently show negative for Amphetamines which is a problem because they see I have a prescription for Dextro-amphetamine. Yet, it appears I am doing somet...  Read Full »


Dr. Arul Amuthan L

Answer: Hi, Welcome to icliniq.com. I understand your concern. Amphetamine excretion increases with increasing urine flow. Therefore, high urine flow (due to over-drinking water or diuretic drugs) will increase excretion. Hence not detectable in urine. The excretion is also increased with acidic urine pH. ...  Read Full »

I took Vicodin. How long will it take to clear from my system?

Query: Hi doctor, I took 60 mg of Vicodin over two days down for pain. I have a drug test coming up. How long will it take to clear in my system? I am 25 years old, 5'9" height and 165 lbs weight having a pretty fast metabolism.  Read Full »


Dr. Amrit Agarwal

Answer: Hello, Welcome to icliniq.com. Vicodin is a drug, which is a combination of Acetaminophen and Hydrocodone. Acetaminophen has a half-life of 4 hours and Hydrocodone has a half-life of 4 to 5 hours. So, both drugs combination that is Vicodin can be completely washed out from the body within one day...  Read Full »

ask-doctor-img Ask a Wellness Expert Online

Choose a Specialty
* Your first query consult is free!

Search for a Health Issue



Disclaimer: No content published on this website is intended to be a substitute for professional medical diagnosis, advice or treatment by a trained physician. Seek advice from your physician or other qualified healthcare providers with questions you may have regarding your symptoms and medical condition for a complete medical diagnosis. Do not delay or disregard seeking professional medical advice because of something you have read on this website. Read our Editorial Process to know how we create content for health articles and queries.