AyahuascaĪ tea made in the Amazon from a plant ( Psychotria viridis) containing the hallucinogen DMT, along with another vine ( Banisteriopsis caapi) that contains an MAO inhibitor preventing the natural breakdown of DMT in the digestive system, which enhances serotonergic activity. For information on alcohol’s health effects, please visit the National Institute on Alcohol Abuse and Alcoholism (NIAAA) website.