槟榔其形椭圆,质硬难切。历来皆是用清水浸漂15～20天方可切片,有效成分槟榔碱损失很大。笔者的经验:先将原药材倒入水缸内,用清水涤去虫蛀及非药用部分,把槟榔个埋入潮湿细砂中或潮湿糠壳里,放通风处,保持湿度,闷润至透,取出洗去砂切0.2～0.3mm圆片,阴干或风吹干即得。 The betel nut is oval in shape and difficult to cut. Historically, they have been immersed in fresh water for 15 to 20 days. The loss of active ingredient, arecoline, is very large. The author’s experience: first pour the original medicinal materials into a water tank, clean the insects and non-medicinal parts with clean water, and bury the betel nuts in wet fine sand or damp clam shells, put in ventilated areas, keep humidity, and moisten. To thoroughly, take out and wash the sand cut 0.2 ~ 0.3mm disc, dried or wind dried.