Radish Seed Classic Formulas … Natural Herb Library

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Reduces food stagnation and relieves distension ... Lai Fu Zi is a classic seed herb for bloating, belching, foul food retention, and fullness after overeating or poor transformation.
Directs rebellious qi downward and transforms phlegm ... it treats cough, wheezing, chest oppression, and phlegm obstruction when digestive stagnation and Lung qi rebellion coexist.
Assists bowel movement in obstructive accumulation patterns ... when retained food and qi stagnation bind the middle, Lai Fu Zi can help move both stool and gas.

Bao He Wan ... classic food-stagnation formula that illustrates Lai Fu Zi's ability to reduce retained food and move qi.
San Zi Yang Qin Tang ... hallmark use of Lai Fu Zi with other seeds to descend qi, transform phlegm, and ease wheezing.
Digestant combinations with Shan Zha or Shen Qu ... common strategy when severe post-prandial fullness and foul stagnation dominate the presentation.

Traditional materia medica describes Lai Fu Zi as acrid, sweet, and neutral, entering the Lung, Spleen, and Stomach to reduce food stagnation and direct qi downward.
The herb is especially valued when digestive obstruction and phlegm-wheezing appear together, because it treats the retained food root and the respiratory branch at once.