Frontiers in pharmacology
January 1, 2021
Gabrielle M Henriques, Alexia Anjos-Santos, Isa R S Rodrigues et al.
10 citations
Ibogaine, a psychedelic from the African plant Tabernanthe iboga, blocked the reinstatement of a conditioned place preference for ethanol in male mice, suggesting it may disrupt learned alcohol-seeking behaviors. Ethanol (1.8 g/kg) induced a conditioned place preference, but ibogaine (10 or 30 mg/kg) did not produce rewarding effects on its own. Repeated ibogaine treatment after ethanol conditioning prevented reinstatement of the preference both when mice received a priming ethanol injection and when they were re-exposed to the ethanol-paired compartment without the drug. These results indicate ibogaine could have therapeutic potential for alcohol use disorder at doses that lack rewarding effects.
International review of neurobiology
January 1, 2024
Eduardo A V Marinho, Yasmim A Serra, Alexandre J Oliveira-Lima et al.
6 citations
Psychedelics such as LSD and psilocybin have shown promise for treating alcohol use disorder by reducing drinking and promoting abstinence. Ayahuasca, an Amazonian brew containing β-carbolines and DMT, has also emerged as a potential treatment. Clinical studies, mostly retrospective, report significant decreases in alcohol use among ayahuasca users. Pre-clinical evidence indicates ayahuasca blocks abuse-related effects of alcohol. The chapter reviews clinical and pre-clinical evidence suggesting ayahuasca may be a promising new pharmacotherapy for alcohol use disorder and discusses potential mechanisms.
Scientific reports
October 23, 2024
Natali D Kisaki, Yasmim A Serra, Isa R S Rodrigues et al.
Male mice voluntarily drank ayahuasca over water when offered every other day, regardless of concentration. Extending the interval between exposures to every five days reversed this preference, producing aversion to ayahuasca, especially at higher concentrations. Frequency of exposure and concentration together influenced total ayahuasca intake during later re-exposure. These results indicate that both how often and how much ayahuasca is available determine preference in mice, which may inform therapeutic or ritualistic use.