Three Cases of Reported Improvement in Microsmia and Anosmia Following Naturalistic Use of Psilocybin and LSD
Journal of Psychoactive Drugs – August 31, 2023
Source: OpenAlex
Summary
Remarkably, a man with microsmia regained his sense of smell after taking 6g of psilocybin mushrooms. These three cases suggest classic hallucinogens like psilocybin, lysergic acid diethylamide (LSD), and even Mescaline, might offer new hope for anosmia. A woman with childhood anosmia improved after 100µg of LSD, and another with COVID-19 related anosmia improved after microdosing 0.1g of psilocybin. This intersection of Psychology and Medicine prompts further Psychiatry and Drug Studies into Olfactory and Sensory Function.
Abstract
Cultural awareness of anosmia and microsmia has recently increased due to their association with COVID-19, though treatment for these conditions is limited. A growing body of online media claims that individuals have noticed improvement in anosmia and microsmia following classic psychedelic use. We report what we believe to be the first three cases recorded in the academic literature of improvement in olfactory impairment after psychedelic use. In the first case, a man who developed microsmia after a respiratory infection experienced improvement in smell after the use of 6 g of psilocybin containing mushrooms. In the second case, a woman with anosmia since childhood reported olfactory improvement after ingestion of 100 µg of lysergic acid diethylamide (LSD). In the third case, a woman with COVID-19-related anosmia reported olfactory improvement after microdosing 0.1 g of psilocybin mushrooms three times. Following a discussion of these cases, we explore potential mechanisms for psychedelic-facilitated improvement in olfactory impairment, including serotonergic effects, increased neuroplasticity, and anti-inflammatory effects. Given the need for novel treatments for olfactory dysfunction, increasing reports describing improvement in these conditions following psychedelic use and potential biological plausibility, we believe that the possible therapeutic benefits of psychedelics for these conditions deserve further investigation.