I used to take 20-50 grams per day when I was addicted. I took the powder into my mouth and swigged down some water to swallow it. It doesn't taste too bad.
From my experience, it helps a lot with anxiety, like most opioids. But its really hard to moderate. I easily fall victim to its addictive nature.
And the withdrawals are pretty terrible, again, like most opioids.
20-50g??? Jesus man.