In Thailand, this is used as a Kratom alternative.
Combretum is a little known herb, in fact it is the leaves of the tree with the same name. The tree is found in various jungles and wetlands throughout Southeast Asia where it is known as Sakae Naa.
The extract is used in China as herbal medicine for common colds, sore throats and mild pain relief. Independent studies have confirmed the anti-bacterial and anti-inflammatory properties. Properties which the Combretum quadrangulare tree shares with other species in the Combretum family.
Sakae Naa is used by many people in Thailand and Myanmar though it is reportedly seldom sold. Farmers pick the leaves themselves and chew or smoke them, using it as a substitute for Mitragyna speciosa (Kratom) because Sakae Naa is remarkably similar to it in both look and taste. The effects are energizing and mildly sedating and last up to 4 hours.
Preparation
Try it as a tea.