Dilong is cold in nature and is prone to harming the spleen and stomach, therefore, it should not be taken by those who have a weak and cold spleen and stomach (spleen and stomach weak and cold). The basic effects of Dilong are clearing away heat, calming the wind and stopping convulsions, clearing the channels, calming asthma and inducing diuresis. Dilong is salty and cold, and enters the liver, spleen and bladder meridians. It can clear heat and calm wind to stop convulsions, and is suitable for evidence of extreme heat and wind movement in the liver meridian. The nature of this product is good at running away, long for the activation of meridians and collaterals, suitable for meridian blockage, blood circulation is not smooth, the joints of the limbs are unfavorable. Because of the cold nature of this product to clear heat, so the treatment of joints red, swollen and hot pain, flexion and extension of heat paralysis (often manifested as joint muscle burning, pain, redness and swelling, etc.) is appropriate. Dilong is cold in nature and is good at clearing lung heat and calming wheezing, so it is suitable for the wheezing of lung congestion caused by evil heat. It also clears heat and induces diuresis, and is indicated for edema, dysuria (unsmooth urination) or urinary incontinence caused by heat in the bladder. The adverse reactions and contraindications of Dilong are not known, and it should not be taken by people with deficiency of the spleen and stomach (weak and cold spleen and stomach). The drug should be used under medical supervision.