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Psychedelics Guide

More than 500 articles organized by substance and topic: psilocybin, LSD, ayahuasca, DMT, MDMA, mescaline and harm reduction. Rigorous information, without fear and without propaganda.

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Psilocybin and Methamphetamine: How Brain Networks Reorganize

Psiconáutica Editorial Team · October 9, 2026 In briefA functional magnetic resonance imaging (fMRI) study compares the brains of people with methamphetamine use disorder before...

Common Drug Causes False-Positive MDMA Urine Test

Psiconáutica Editorial Team · October 9, 2026 In briefThree patients admitted in Algiers tested positive for MDMA on a rapid urine screen despite no consumption;...

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When Crack Replaces Heroin in Madrid

Why freebase has cornered heroin in Madrid’s toughest drug market—economic factors, market shifts, and a harm reduction perspective.

Market Volatility: MDMA Purity and Adulteration in Spain

An analysis of the evolution of MDMA purity in the Spanish illicit market. Historical data, risks of adulteration, and lessons for harm reduction.

Testosterone: Between Biology, Power, and the Construction of Gender

Testosterone is far more than a bodybuilding supplement or a binary hormone. This article explores how it shapes not only human physiology, but also our perceptions of power, masculinity, and sexual identity in contemporary society.

Tampodka: Anatomy of a Summer Drug Hoax

What lies behind "tampodka"—the supposed vodka-soaked tampon trend among teens? We break down why it’s a myth and what the evidence actually says.

The Crystal Deception: Meth Sold as Ecstasy in Spain

Discover why methamphetamine is often sold as ecstasy in Spain. We analyze the risks, pharmacological differences, and how to protect your health.

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