Poria Hostwood Classic Formulas … Natural Herb Library

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Calms the spirit and settles fright - Fu Shen Mu is the wood core associated with Poria and is used for palpitations, forgetfulness, fright, and restlessness when the spirit is unsettled.
Pacifies the Liver and relaxes spasm - official indications include post-stroke muteness, leg cramping, and wind-stirred sinew tension rather than only simple insomnia.
Supports speech and movement recovery in deficiency-wind contexts - regional use extends to speech difficulty and sinew spasm after internal wind or lingering depletion.

Fu Shen San - traditional use pattern for speech difficulty, fright, or post-stroke disturbance in which Fu Shen Mu helps settle the spirit and support recovery.
Song Jie San - official regional formula context for leg cramping or sinew spasm where the wood-associated material helps relax and settle.
Pairings with Tian Ma, Gou Teng, or Long Gu - modernized traditional logic when internal wind, fright, and palpitations coexist.

Official Chinese references describe Fu Shen Mu as the pine root found within Poria, sweet and neutral, with functions of calming the Liver and spirit.
The standard indications include fright palpitations, forgetfulness, post-stroke speech difficulty, and leg cramping.
Correcting this page to Fu Shen Mu preserves a real medicinal identity that would otherwise be lost under the misleading stub pinyin.