You take that for working out? It looks like it's formulated to support testicular and prostate health. Stopping shouldn't be a problem; it would be hard to rule out risks if you were to continue with this supplement during the time of your ayahuasca sessions.
What makes you think you'll experience "withdrawal" on cessation? Have the ingredients been declared correctly? Substances that genuinely produce withdrawal effects would endanger your health in combination with ayahuasca. You always have the option of not taking the ayahuasca yet, if for some reason you don't want to stop taking this supplement.
“There is a way of manipulating matter and energy so as to produce what modern scientists call 'a field of force'. The field acts on the observer and puts him in a privileged position vis-à-vis the universe. From this position he has access to the realities which are ordinarily hidden from us by time and space, matter and energy. This is what we call the Great Work."
― Jacques Bergier, quoting Fulcanelli