
Products to pass a drug test: do they work?
We briefly explain what science says about the effectiveness of these types of cleansing products.
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Dr. Fernando Caudevilla is a Specialist Medical Doctor in Family and Community Medicine and a University Expert in Drug Dependencies. He works on a range of clinical, research and teaching projects related to drugs, including therapeutic cannabis.
He has taught on the University Master's Degree in Drug Dependencies at Complutense University of Madrid and is a Member of the Drugs Intervention Group of semFYC (the Spanish Society of Family and Community Medicine).
He served as Medical Adviser at Energy Control between 2002 and 2020, and has lectured at more than 50 national and international conferences on recreational drugs and therapeutic cannabis.
He sees patients individually through his private practice and provides professional advice to cannabis organisations and associations.
Dr. Caudevilla runs a medical practice specialising in drugs in Madrid, in the Lavapiés neighbourhood. He sees patients in person (by appointment only) and via videoconference.
Dr. Caudevilla's professional career has revolved around drug use, and especially the impact of the Internet on consumption.
Online forums and social networks often act as a space for debate and as a source of information about drugs. These channels break away from the universal message of the major traditional media, always focused on prevention, in order to recognise the nuances of consumption, offering people an unprecedented opportunity to take part in their own decision-making processes.
This profile is the reason why his colleagues gave Caudevilla the nickname DoctorX. Today, DrX provides expert advice on a range of Internet forums on issues that matter to drug users, such as possible interactions between medications, drugs and consumption patterns.
Doctor Fernando Caudevilla has authored more than thirty scientific publications related to drugs, as well as chapters and books, including works on medical cannabis and recreational use.

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