Short answer: there is no standardized psychedelic therapy specifically for ADHD. Some providers do offer guided psychedelic sessions that are personalized for people with ADHD or ADD, focusing on individual goals rather than a fixed ADHD protocol.
Such trajectories typically emphasize preparation and integration. That can include clarifying goals, reviewing lifestyle, sleep, nutrition, stress, and planning how to apply any insights afterward. Evidence for psychedelics as an ADHD treatment is still limited, so outcomes are not guaranteed and I cannot verify individual results.
If you use ADHD medication, do not change it on your own. Discuss any potential adjustments with your prescribing clinician, and make sure screening covers medication and personal circumstances.
For a practical impression of tailored guidance in the Netherlands, see Triptherapie Nederland. I hope this helps.