Cuttlebone has the efficacy and effect of astringency and stopping bleeding (using drugs with astringent effect to treat bleeding conditions), fixing essence and stopping bandages, suppressing acid and relieving pain (inhibiting gastric acid and alleviating pain), and collecting dampness and astringing sores. Its contraindication is allergic to the product is prohibited, allergic people should be cautious, Yin deficiency and more hot people should not take more, long service is easy to cause constipation. Cuttlebone flavor salty, astringent, slightly warm, the spleen, kidney meridian. It can be used for treating spermatorrhea due to loss of storage in the kidney, deficiency of liver and kidney (weak liver and kidney), damage to the capillary and belt or dampness gathering in the spleen, loss of constraint of the belt vein (loss of constraint of the belt vein) resulting in scanty and scanty discharge, loss of regimentation of the flushing and renminal organs, bleeding due to leakage, deficiency of cold in spleen and stomach, stomachache and vomiting of sourness, wet sores and eczema, and ulcer without astringency. The adverse reactions of this product are not clear at present. Note that this product is prohibited for those who are allergic to this product, allergic individuals should be cautious, yin deficiency and more heat should not be taken more than one person, prolonged use of constipation can easily lead to constipation, can be appropriate with laxative use. If you need to use this product, should be under the guidance of a physician, do not unauthorized use of medication, so as not to cause adverse reactions.