Can cinnamon stick be used in large doses of 100 grams

Gui Zhi is generally not recommended for large doses of 100g, and its dosage is usually 3 to 10g.
Gui Zhi is pungent, sweet and warm in nature, and has the effects of dispersing wind-cold, dispersing cold and relieving pain, warming the meridians, transforming qi to move water (promoting the movement of gases, thus promoting the movement of water and liquids), and leveling the flushing and lowering the rebellious Qi (resolving upwardly rebellious qi with qi lowering medicines).
It can treat oedema, phlegm (pathological products formed by impaired water-liquid metabolism), menstrual occlusion, dysmenorrhea, palpitation, wind-cold and flu, and paralytic pain of joints, etc. It is commonly used in the treatment of oedema and phlegm-liquid diseases.
Adverse effects after taking Gui Zhi are not known, and pregnant women should be cautious in using it.
The correct way to use Gui Zhi is to decoct it with water, as it is a pungent and warm product, which can easily deplete qi and injure yin or move the blood, and the use of a large dose of Gui Zhi may lead to bleeding, qi deficiency and other illnesses, so Gui Zhi is not recommended to be used in a large dosage of 100 grams.
If you need to use Gui Zhi, you should use it after the guidance of a traditional Chinese medicine practitioner, and should not self-medicate or change the dosage arbitrarily to avoid adverse effects on the body.