The rhizome cut into thin slices is gently boiled in water for a few minutes, then left to steep off the heat. This simple preparation was the most common form in Thai villages. Dosage should be validated with a healthcare professional or recognized pharmacopoeia before use.
The finely sliced rhizome is macerated for several weeks in rice alcohol or neutral spirits, protected from light. This form, widely used in Thailand, should be used with great moderation and under professional advice. Dosage should be validated with a healthcare professional or recognized pharmacopoeia before use.
The dried rhizome is reduced to fine powder, sometimes mixed with honey or incorporated into traditional Thai culinary preparations. A professional should be consulted before any regular use. Dosage should be validated with a healthcare professional or recognized pharmacopoeia before use.
It is mainly found in herbalist shops specializing in Asian plants, in the form of powder, capsules, or dried root imported from Thailand. It is sometimes cultivated in humid tropical climates, but remains uncommon outside its native range.