How many grams of Pueraria Mirifica are commonly used in water?

Pueraria Mirifica is used in doses of 10 to 15 grams, but the effect of infusion is limited, and it is not recommended to take it in water, and should be used in accordance with medical advice.
Pueraria lobata is used as a decoction for internal use, or mashed juice. Externally, it can be used in appropriate amount to pound and compress. It should be used in raw form to relieve epidermis, penetrate rashes, and promote the production of body fluids, and simmered for stopping diarrhea. The pharmacopoeia recommends a dosage of 10 to 15 grams. The use of Pueraria Mirifica in water is limited in effective dose, and does not have medicinal effect.
Pueraria Mirifica has the effects of removing heat and muscle (relieving the evil on the surface of the skin), transmitting rashes, quenching thirst and generating fluids, activating the meridians and collaterals, elevating yang and stopping diarrhea, and removing the toxins of alcohol. It is used in treating external fever and headache, thirst, strong pain in the neck and back, thirst, impenetrable measles, diarrhea, hot diarrhea, vertigo and headache, chest paralysis (chest tightness and pain), heart pain, and hemiplegia with stroke.
The adverse reactions and contraindications of Pueraria Mirifica are not clear, as a medicinal herb for the treatment of diseases, the use of which should be guided by a doctor.