It has a ceiling effect. You could've actually ruined the effects by taking more than 4g. Less is more is the saying. 4g gives me intense euphoria and relaxation, I don't do that dose very often these days though. Used to do 5-6g a day but now I do 2-3g depending on how I feel and 4g when I really need extra pain relief. I drink all the tea in one go now though. Never taken weed so I don't know how it would compare to that high, but it can be sheer bliss for a few hours.