脉软而弱，弱反在关，（关下三分也。）濡反在巅，（关上三分也。）微反在上，（寸口也。）
涩反
在下。（尺部也。）微则阳不足，涩则无血，阳气反微，中风汗出而反烦躁，涩则无血，厥而且寒，
宜建中汤。（方在不可汗证中。）
阳微不可下，下之则心下痞。
诸动气在心腹上下左右，俱不可下。
动气在右，不可下，下之则津液内竭，咽燥鼻干，头眩心悸。（宜竹叶汤，方在不可汗证中。）
动气在左，不可下，下之则腹里拘急不止，动气反剧，身虽有热反欲倦。（先服干姜甘草汤，方
在太阳证中，后服建中汤，方在不可汗证中。）
动气在上，不可下，下之则掌握热烦，身冷，热汗自泄，欲水自灌，竹叶汤主之。（方在不可
汗证中。）
动气在下，不可下，下之则腹满，卒起头眩，食则下清谷，心下痞坚，半夏泻心汤主之。（方
在痞证中。）
咽中闭塞，不可下。
庞曰∶诸脉濡弱微虚细相搏，俱不可下。
诸四逆，不可下，虚家亦然。
庞曰∶若下证悉具而见四逆者，是失下后气血不通使然，但手足微厥，掌心常温，时复指稍温
便下之，不可拘忌也。
伤寒呕多，虽有阳明证，不可攻也。
庞曰∶凡下证，小便不利或尚少，未可攻之也。
不当下而强下之，令病患肠胃洞泄不禁而死。
The pulse is soft and weak; the weak pulse appears at the Guan position (three fen below the Guan), the Ru (soft) pulse appears at the Dian position (three fen above the Guan), the Wei (fine) pulse appears at the upper part (Cunkou), and the Se (choppy) pulse appears at the lower part (Chi position). A Wei pulse indicates insufficiency of Yang Qi; a Se pulse indicates lack of Blood. If Yang Qi is insufficient, wind-stroke with sweating may be accompanied by irritability. If there is lack of Blood, there will be cold limbs and chills. Jianzhong Tang (Middle-Building Decoction) is indicated. (Formula found in the section on "Conditions Where Sweating Is Contraindicated".)
When Yang Qi is deficient, purgation must not be used; purging will lead to epigastric fullness and obstruction (Xia Pi).
In all cases where Qi movement occurs in the heart and abdomen, up, down, left, or right, purgation must not be used.
If Qi movement is on the right, purgation must not be used; purging will deplete internal fluids, causing dry throat, dry nose, dizziness, and palpitations. (Zhuye Tang (Bamboo Leaf Decoction) is indicated. Formula found in the section on "Conditions Where Sweating Is Contraindicated".)
If Qi movement is on the left, purgation must not be used; purging will cause continuous abdominal cramping, exacerbate the Qi movement, and cause fatigue despite body heat. First administer Ganjiang Gancao Tang (Dried Ginger and Licorice Decoction), then Jianzhong Tang. (Formulas found in the Taiyang Syndrome section and the section on "Conditions Where Sweating Is Contraindicated", respectively.)
If Qi movement is on the upper side, purgation must not be used; purging will cause heat and irritability in the palms, cold body, spontaneous sweating of cold sweat, and a desire for water to be poured over oneself. Zhuye Tang (Bamboo Leaf Decoction) is the primary treatment. (Formula found in the section on "Conditions Where Sweating Is Contraindicated".)
If Qi movement is on the lower side, purgation must not be used; purging will cause abdominal fullness, dizziness upon sudden rising, passage of undigested food after eating, and hard epigastric obstruction. Banxia Xiexin Tang (Pinellia Heart-Draining Decoction) is the primary treatment. (Formula found in the Pi Syndrome section.)
A sensation of closure in the throat contraindicates purgation.
Pang Anshi stated: When pulses such as Ru, Ruo, Wei, Xu, and Xi appear together, purgation must not be used.
Sini syndrome (Four-Chill Syndrome) contraindicates purgation; this also applies to patients with deficiency constitutions.
Pang Anshi stated: If indications for purgation are fully present but Sini symptoms appear, it is due to Qi and Blood stagnation resulting from missed purgation. If only the hands and feet are slightly cold, the palms remain warm, and the fingers occasionally become warm, purgation may be administered without undue hesitation.
In typhoid fever, frequent vomiting contraindicates purgation, even if Yangming syndrome signs are present.
Pang Anshi stated: Even if indications for purgation exist, if urination is difficult or scanty, purgation must not be performed.
Forcibly purging when purgation is not indicated can lead to severe diarrhea that cannot be controlled, resulting in death.