Facilitation of memory retrieval by the "anti-addictive" alkaloid, ibogaine.
Life sciences – January 01, 1996
Source: PubMed
Summary
Ibogaine shows promise in aiding memory retrieval, which may play a role in its anti-addictive properties. In a study involving rats trained in the Morris maze task, those receiving ibogaine at doses of 0.25 or 2.5 mg/kg, as well as O-desmethyl-ibogaine at 2.5 mg/kg, demonstrated improved spatial memory retrieval compared to the placebo group. Notably, t-Butyl ibogaine did not yield similar effects. These findings suggest that ibogaine's therapeutic potential may extend beyond its known NMDA receptor interactions.
Abstract
Anecdotal observations in humans indicate that indole alkaloid ibogaine may have anti-addictive properties. It has been suggested that the therapeutic action of ibogaine may depend upon facilitated access to the past experiences, purportedly influencing the initiation of drug addiction. To determine if ibogaine may facilitate memory retrieval, rats were trained in the Morris maze spatial navigation task. It has been found that ibogaine (0.25 or 2.5 mg/kg) or O-desmethyl-ibogaine (2.5 mg/kg) but not t-Butyl ibogaine, administered just before the test trial, facilitated spatial memory retrieval compared to rats receiving placebo treatment. It is concluded that although previously described NMDA receptor antagonistic properties of ibogaine may represent a locus for at least some of its actions, other mechanisms, involving facilitation of memory retrieval may be of importance for its anti-addictive effects.