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Getting the latest healthcare news for you
Psilocybin could prevent chemotherapy-induced nerve damage. A preclinical study published in Science found that prophylactic psilocybin protected sensory nerves from chemotherapy-induced peripheral neuropathy (CIPN) in mice and human nerve tissue — without affecting tumor-fighting efficacy. Even better, a non-hallucinogenic version of the drug offered similar protection, opening the door to broader clinical use.
Chemotherapy saves lives, but it often comes at a painful cost — up to 60% of patients on certain regimens develop chemotherapy-induced peripheral neuropathy (CIPN), a nerve condition causing numbness, tingling, and severe pain in the hands and feet. No preventive treatment currently exists. Now, a study published in Science suggests psilocybin — the active compound in "magic mushrooms" — could change that.
Researchers tested prophylactic psilocybin in mouse models using cisplatin, paclitaxel, and docetaxel, as well as in human-derived sensory neurons and freshly harvested nerve tissue from 29 surgical patients. Just two pre-treatment doses of psilocybin fully prevented mechanical hypersensitivity in mice, and cycle-matched dosing sustained that protection across six months of chemotherapy — without measurably impacting tumor growth.
The mechanism? Psilocybin preserved mitochondrial trafficking inside nerve axons via the 5-HT2A receptor, keeping energy supply intact in the nerve endings that chemo typically starves. Crucially, a non-hallucinogenic 5-HT2A agonist (TBG) offered comparable protection, suggesting the psychedelic effect isn't required for the therapeutic benefit.
Key Takeaways:
Why it matters: CIPN is one of the most common reasons oncologists reduce or stop chemotherapy, potentially compromising cancer outcomes. A preventive strategy — especially one that doesn't require hallucinogenic effects — could help patients complete their full treatment course while preserving quality of life.
