An small update after few days.

I drink daily or more that once daily (it depends what i do ATM) and it helps great to don't smoke. When i need a cigaret or tobacco mix, just drink the tea and it's, the need go away.

A mix of herbs is done because kudzu is bitter, there are :

Kudzu

Millepertuis (St. John's wort ?)

Hyssop

passiflora aerial part

chamomilla

burdock

Add honey or brown sugar and it's nice. Few times after i experience a mild stoned feeling.

Cheers