There is, but it's not a substance, it's resistance training and cardio exercise. Daily workouts will do absolute wonders towards making you feel better without opiates and repairing the endorphin/endocannabinoid and dopamine systems. When I did ibogaine, it basically provided me the motivation and drive and temporary windows away from my terrible state of being to work on changing. I started working out 5 days a week and eating well, and pursuing healthy activities and passions. This gave me 5 years of clean time from opioids, to the point I believe I no longer had a problem, and did not struggle anymore. The 2 years after my flood dose were the best years of my life thus far. Ibogaine was a very useful tool that provided a sort of reset... but the work I did after was what really allowed me to change.
After 5 years, a long illness/death in the family eventually led me to relapse and so, sadly, I am not still cured. I let my discipline slip eventually and it sucks. But ibogaine us surely powerful medicine. Particularly the full range of plant alkaloids, my research indicates it is much superior to 100% pure ibogaine HCL by itself. I only had the one experience so can't compare the two but it my strong belief that the total alkaloid extract as part of the dose greatly increases the power and impact of the experience. The plant contains several other powerful alkaloids. Actually those other alkaloids (and noribogaine, which it metabolizes to and which is my theory for why flood doses can last upwards of 3 days of acute effects and much longer in aftereffects which are also strong - that and the absurdly high dose, which means that a great many half lives must pass before the drug reduces to levels below those needed for effects, after all the active dose is around 5-7mg, and a flood dose involves 1200+mg, as much as 2000 or more in some cases). The wiki articles are super interesting: