Known l-menthol mitigates smooth muscle dynamic role. In order to use l-menthol as the alimentary canal dynamic role palliative in digestive endoscopy in practice, it needs to design and generates a kind of formulation method, the solution of l-menthol keeps stable and transparent or seldom muddiness in production Hou for a long time in said preparation, and it is shown in seldom foam when application. Into the smooth muscle dynamic role palliative or alimentary canal dynamic role palliative of the l-menthol emulsion of the average grain diameter with 100 nanometers of small what containing relative transparent, defoaming agent is also added. Therefore, obtain a kind of such preparation be it is possible, said preparation keeps stablizing for a long time, does not generate foam with high light transmittance and in being filled into container or in local application such as digestive endoscopy art, the thus observation of advantageous what disease location.已知L-薄荷醇減輕平滑肌能動性。爲了在實踐中使用L-薄荷醇作爲消化道內鏡檢查中的消化道能動性減輕劑，需要設計産生一種製劑方法，該製劑中L-薄荷醇的溶液在生産後長時間保持穩定並且透明或很少渾濁，並且它顯示在施用時很少泡沫。向含有相對透明的具有小於100納米的平均粒徑的L-薄荷醇乳劑的平滑肌能動性減輕劑或消化道能動性減輕劑中，還添加消泡劑。因此，獲得一種這樣的製劑是可能的，該製劑長時間保持穩定、具有高的透光率和在填充到容器中或局部施用例如消化道內鏡檢查術中不産生泡沫，由此有利於疾病部位的觀察。
