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  1. Home/
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  3. Dr. Fernando Caudevilla
Dr. Fernando Caudevilla

About:

Dr. Fernando Caudevilla

Family Doctor | Expert in Drug Dependencies and therapeutic cannabis

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Family Doctor | Expert in Drug Dependencies

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.

Medical practice specialising in drugs

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.

Better known as DoctorX

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.

Scientific publications

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.

Posts by Dr. Fernando Caudevilla:

Products to pass a drug test: do they work?
Cannabis plant
12 Jul 2024

Updated: 30 Oct 2026

By Dr. Fernando Caudevilla

Products to pass a drug test: do they work?

We briefly explain what science says about the effectiveness of these types of cleansing products.

Read more →
Does cannabis have the same effects on men and women?
CBD and wellness
19 Feb 2024

Updated: 30 Oct 2026

By Dr. Fernando Caudevilla

Does cannabis have the same effects on men and women?

Find out whether cannabis affects men and women differently. A science-based look at the different experiences with cannabis across genders.

Read more →
Can CBD cause a positive drug test? Your questions answered
CBD and wellness
29 Sept 2023

Updated: 30 Oct 2026

By Dr. Fernando Caudevilla

Can CBD cause a positive drug test? Your questions answered

Can CBD be detected in drug tests? Can CBD be converted into THC? How long does THC remain in the body?

Read more →
CBDTHC
CBD for hypertension: how does cannabidiol affect blood pressure?
CBD and wellness
28 Sept 2023

Updated: 30 Oct 2026

By Dr. Fernando Caudevilla

CBD for hypertension: how does cannabidiol affect blood pressure?

Does CBD affect blood pressure? Can it bring it down? The answers are in our post on CBD and hypertension by Dr Caudevilla.

Read more →
CBD
CBD in the treatment of addiction: research into its properties
CBD and wellness
4 Sept 2023

Updated: 30 Oct 2026

By Dr. Fernando Caudevilla

CBD in the treatment of addiction: research into its properties

Current research on the potential of CBD to help people give up addictions such as tobacco and other drugs, by Dr Caudevilla.

Read more →
CBDAddictions & habits
Does CBD cause addiction?
CBD usage guides
7 Aug 2023

Updated: 30 Oct 2026

By Dr. Fernando Caudevilla

Does CBD cause addiction?

Have you ever wondered whether CBD causes addiction? Find clear, well-founded answers on whether CBD is addictive in this post, based on the opinion of an expert in drug dependence.

Read more →
CBDAddictions & habits
Medical cannabis: uses and regulation in Europe
CBD and legality
10 Jun 2023

Updated: 30 Oct 2026

By Dr. Fernando Caudevilla

Medical cannabis: uses and regulation in Europe

A look at what medical cannabis is, its authorised uses and how it is regulated across the different European countries.

Read more →
CBDTHC
CBD to quit smoking?
CBD and wellness
31 May 2023

Updated: 30 Oct 2026

By Dr. Fernando Caudevilla

CBD to quit smoking?

You may be surprised to learn that CBD is being researched as a way to quit smoking. To mark World No Tobacco Day, we bring you a post on the issue of tobacco addiction.

Read more →
CBDAddictions & habits
Cannabidiol (CBD) in epilepsy: uses and research
CBD and wellness
13 Feb 2023

Updated: 30 Oct 2026

By Dr. Fernando Caudevilla

Cannabidiol (CBD) in epilepsy: uses and research

On World Epilepsy Day, we bring you a post about the role of CBD in the treatment of this disease and the research into it.

Read more →
CBDCannabis research
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