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Shi Bi (Excess Constipation) refers to constipation caused by excess in the Stomach. As Li Dongyuan stated: "When Stomach Qi is excess, it is the obstruction of food; when Stomach Qi is deficient, it is the obstruction of Qi." Patients with this condition can eat, have dark red urine, and present a deep and forceful pulse.

Maren Wan (Hemp Seed Pill)
Ingredients: Houpo (Cortex Magnoliae Officinalis, processed with ginger juice), Zhishi (Fructus Aurantii Immaturus, stir-fried with bran), Shaoyao (Radix Paeoniae Alba), each 8 liang; Dahuang (Radix et Rhizoma Rhei, steamed and dried), 1 jin; Huomaren (Semen Cannabis, separately ground), 5 liang; Xingren (Semen Armeniacae Amarum, peeled and de-veined, stir-fried), 5.5 liang.
Preparation and Administration: Grind the above ingredients into fine powder. Mix with refined honey to form pills the size of a wutong seed. Take 20 pills per dose, swallowed with warm water before bedtime. Discontinue use once bowel movement becomes smooth.

Muxiang Zhuqi Wan (Costus Qi-Expelling Pill)
Ingredients: Binglang (Arecae Semen, selecting those shaped like a chicken heart), Qingpi (Pericarpium Citri Reticulatae, white pith removed), Chenpi (Pericarpium Citri Reticulatae, white pith removed), each half liang; Nanmuxiang (Radix Aucklandiae), 2.5 qian; Chuan Badou Rou (Endocarpium Crotonis Tiglii, 1.5 qian, ground into paste, gradually mixed with other powders).
Preparation and Administration: Grind all ingredients into powder. Use fresh ginger juice to mix with Shenqu (Massa Medicata Fermentata) powder as a binder to form pills the size of hemp seeds. Take 10 pills per dose, swallowed with ginger decoction. If abdominal pain occurs due to Qi attacking, swallow with decoction of Zhike (Fructus Aurantii) and Mugua (Fructus Chaenomelis).
Commentary: Shi Bi (Excess Constipation) can be either cold or heat in nature. For heat-excess patterns, cold purgation is indicated; for cold-excess patterns, warm purgation is indicated. Maren Wan (Hemp Seed Pill) and Houpo Sanwu Tang (Magnolia Bark Three-Ingredient Decoction) treat excess-heat patterns. Zhuqi Wan (Qi-Expelling Pill) and Wenpi Tang (Warm the Spleen Decoction) treat excess-cold patterns.

Feng Bi (Wind Constipation) occurs when wind pathogen predominates, leading to dryness. This arises because wind combats the Lung Zang and transmits to the Large Intestine, causing dryness and astringency of body fluids, making transmission and transformation difficult. Alternatively, patients who historically suffer from wind diseases often experience constipation. Or, if intestinal and stomach heat accumulates over time, internal wind may generate, also resulting in constipation.

Zaojiao Wan (Gleditsia Sinensis Pill) Treats wind in the Large Intestine causing fecal impaction.
Ingredients: Zaojiao (Fructus Gleditsiae Sinensis, roasted, seeds removed), Zhike (Fructus Aurantii, pith removed, stir-fried with bran), equal parts.
Preparation and Administration: Grind into fine powder. Mix with refined honey to form pills the size of a wutong seed. Take 70 pills per dose, swallowed with rice water on an empty stomach. Adding Huomaren (Semen Cannabis), Xingren (Semen Armeniacae Amarum), Fangfeng (Radix Saposhnikoviae), and Chenpi (Pericarpium Citri Reticulatae) is also acceptable.

Dongyuan Runchang Wan (Li Dongyuan's Moistening Intestine Pill)
Ingredients: Danggui Shao (Radix Angelicae Sinensis, tip portion), Qianghuo (Rhizoma Notopterygii), Dahuang (Radix et Rhizoma Rhei, baked), each half liang; Huomaren (Semen Cannabis), Taoren (Semen Persicae, peeled and de-veined), each 1 liang.
Preparation and Administration: Mix with honey to form pills the size of a tung seed. Take 30–50 pills per dose, swallowed with plain boiled water.