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Xaver Koenig

8 papers in the library · 294 citations · publishing 2011-2021

Papers

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Psilocybin Therapy of Psychiatric Disorders Is Not Hampered by hERG Potassium Channel–Mediated Cardiotoxicity

The International Journal of Neuropsychopharmacology December 3, 2021 Benjamin Hackl, Hannes Todt, Helmut Kubista et al. 11 citations

Abstract Psilocybin, a hallucinogen contained in “magic” mushrooms, holds great promise for the treatment of various psychiatric disorders, and early clinical trials are encouraging. Adverse cardiac events after intake of high doses of psilocybin and a trial reporting QT interval prolongation in the electrocardiogram attributed to the drug’s main metabolite, psilocin, gave rise to safety...

Anti-addiction Drug Ibogaine Prolongs the Action Potential in Human Induced Pluripotent Stem Cell-Derived Cardiomyocytes.

Cardiovascular toxicology April 1, 2017 Lena Rubi, Daniel Eckert, Stefan Boehm et al. 18 citations

Ibogaine is a plant alkaloid used as anti-addiction drug in dozens of alternative medicine clinics worldwide. Recently, alarming reports of life-threatening cardiac arrhythmias and cases of sudden death associated with the ingestion of ibogaine have accumulated. Using whole-cell patch clamp recordings, we assessed the effects of ibogaine and its main metabolite noribogaine on action potentials...

The Anti-Addiction Drug Ibogaine and the Heart: A Delicate Relation

Molecules January 29, 2015 Xaver Koenig, Karlheinz Hilber 123 citations

The plant indole alkaloid ibogaine has shown promising anti-addictive properties in animal studies. Ibogaine is also anti-addictive in humans as the drug alleviates drug craving and impedes relapse of drug use. Although not licensed as therapeutic drug and despite safety concerns, ibogaine is currently used as an anti-addiction medication in alternative medicine in dozens of clinics worldwide....

Anti-addiction drug ibogaine inhibits hERG channels: a cardiac arrhythmia risk.

Addiction Biology March 1, 2014 Xaver Koenig, Michael Kovar, Stefan Boehm et al. 50 citations

Ibogaine, an alkaloid derived from the African shrub Tabernanthe iboga, has shown promising anti-addictive properties in animals. Anecdotal evidence suggests that ibogaine is also anti-addictive in humans. Thus, it alleviates drug craving and impedes relapse of drug use. Although not licensed as therapeutic drug, and despite evidence that ibogaine may disturb the rhythm of the heart, this...

Mechanism of hERG channel block by the psychoactive indole alkaloid ibogaine.

The Journal of pharmacology and experimental therapeutics February 1, 2014 Patrick Thurner, Anna Stary-Weinzinger, Hend Gafar et al. 41 citations

Ibogaine is a psychoactive indole alkaloid. Its use as an antiaddictive agent has been accompanied by QT prolongation and cardiac arrhythmias, which are most likely caused by human ether a go-go-related gene (hERG) potassium channel inhibition. Therefore, we studied in detail the interaction of ibogaine with hERG channels heterologously expressed in mammalian kidney tsA-201 cells. Currents...

Anti-addiction drug ibogaine inhibits voltage-gated ionic currents: a study to assess the drug's cardiac ion channel profile.

Toxicology and Applied Pharmacology December 1, 2013 Xaver Koenig, Michael Kovar, Lena Rubi et al. 46 citations

The plant alkaloid ibogaine has promising anti-addictive properties. Albeit not licensed as a therapeutic drug, and despite hints that ibogaine may perturb the heart rhythm, this alkaloid is used to treat drug addicts. We have recently reported that ibogaine inhibits human ERG (hERG) potassium channels at concentrations similar to the drugs affinity for several of its known brain targets....

The anti-addiction drug ibogaine inhibits cardiac ion channels: a study to assess the drug’s proarrhythmic potential

BMC Pharmacology and Toxicology September 1, 2012 Xaver Koenig, Michael Kovar, Lena Rubi et al.

The plant alkaloid ibogaine has shown promising anti-addictive properties in animals and humans. Although not licensed as a therapeutic drug, and despite evidence that ibogaine may disturb the rhythm of the heart, this alkaloid is used as an anti-addiction drug in alternative medicine. We have recently reported that therapeutic concentrations of ibogaine inhibit human ERG (hERG) potassium...

The anti-addictive drug ibogaine modulates voltage-gated ion channels and may trigger cardiac arrhythmias

BMC Pharmacology September 5, 2011 Michael Kovar, Xaver Koenig, Ágnes K. Mike et al. 5 citations

Background Ibogaine is an alkaloid derived from the African shrub Tabernanthe iboga. Psychoactive properties of ibogaine have been known for decades, but more recently the drug has received much attention because of its promising “anti-addictive” actions. Thus, ibogaine and its derivatives are being studied as potential treatment for opioid and stimulant abuse, as well as for alcoholism and...