Since green tea is a natural body cleanser will it affect ADHD medications?

Green tea. No. Green tea should not affect adhd medications.
Possibly. I answered that question for a previous visitor to this site. Briefly green tea has antioxidants and caffeine in it. Antioxidents can speed liver metabolism and slow negative affects of adhd meds. Caffeine can stimulate the urinary tract speeding up excretion of the metabolites from the livers breakdown of the medication. You might need more medication to have the same effect, drinking green tea.