Ayahuasca is a traditional hallucinogenic concoction utilised by indigenous populations in the Amazon Basin for ages in spiritual and therapeutic rituals. The increasing global popularity is attributed to its alleged medicinal and consciousness-expanding properties. The infusion is primarily composed of two key components: the Banisteriopsis caapi vine and the leaves of Psychotria viridis, which collectively yield the intended psychoactive effect. The pharmacological composition of Ayahuasca is based on the interaction between N, N-dimethyltryptamine (DMT), a powerful hallucinogen present in Psychotria viridis, and beta-carbolines, such as harmine, harmaline, and tetrahydroharmine, derived from Banisteriopsis caapi. DMT is not orally active due to its rapid metabolism by the body's monoamine oxidase (MAO) enzymes. The beta-carbolines in the Banisteriopsis caapi vine function as MAO inhibitors, inhibiting the degradation of DMT and facilitating its access to the brain. This leads to an extended psychedelic experience marked by vivid hallucinations, increased emotional sensitivity, and altered states of consciousness. The psychological advantages of Ayahuasca are increasingly being explored in scientific studies. Numerous individuals assert that Ayahuasca promotes emotional healing by facilitating profound introspection and the processing of unresolved trauma. This has resulted in encouraging research into its application in treating diseases such as depression, anxiety, and PTSD. The beverage's capacity to enhance neuronal connections, referred to as neural plasticity, may assist individuals in overcoming detrimental thought habits and embracing more constructive emotional reactions.
Nashikkar et al. (Wed,) studied this question.