Psilocybin

Òscar Parés Franquero

Psilocybin – what is it, and what is its current legal status?

Psilocybin is a naturally occurring psychedelic found in certain mushrooms with a long history of ritual use. Research shows it can alter perception, mood and sense of self, often producing meaningful or mystical experiences. Recent studies highlight potential benefits for depression, anxiety, addiction and grief, linked to temporary increases in brain connectivity and neuroplasticity. Evidence supports structured, high-dose sessions combined with psychotherapy, while microdosing lacks solid support. Despite advanced clinical trials in the US and Europe, psilocybin remains illegal in Spain and is not offered clinically.

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Marta Martín Islas

Microdosing psychedelics: potential benefits and current evidence

Microdosing psychedelics involves taking sub-perceptual doses of substances such as psilocybin or LSD with the aim of improving mood, cognition and emotional wellbeing. This article reviews current scientific evidence on microdosing, including proposed neurobiological mechanisms, potential benefits for depression and anxiety, cognitive and motivational effects, safety considerations and the role of placebo. While observational studies suggest possible benefits, controlled trials show mixed results, highlighting important limitations and the need for further rigorous research before clear clinical recommendations can be made.

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Marta Martín Islas

Ketamine vs. psilocybin therapy: a comparative overview

This article compares ketamine and psilocybin-assisted therapies, outlining differences in legality, mechanisms of action, therapeutic uses, safety profiles and patient experience. Ketamine is legally available and offers rapid symptom relief through glutamatergic modulation, making it useful in acute depression and suicidality. Psilocybin, currently illegal outside trials in Spain, acts via serotonin receptors and is associated with longer-lasting psychological change. The article highlights clinical considerations to help patients and professionals choose the most appropriate treatment based on current research and clinical practice.

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Òscar Parés Franquero

Psilocybin and depression

Psilocybin-assisted therapy is emerging as a promising approach for depression, particularly treatment-resistant cases where standard antidepressants show limited efficacy and burdensome side effects. Research suggests psilocybin can produce rapid and sustained reductions in depressive symptoms, partly by enhancing neuroplasticity and facilitating meaningful psychological experiences. When embedded in a structured therapeutic model with preparation, dosing, and integration sessions, psilocybin may foster emotional openness, cognitive flexibility, and long-term positive change, highlighting a potential paradigm shift in how depression is treated within modern clinical research frameworks.

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