It has anti-epithelial cell proliferation, epithelial cell differentiation induction and anti-inflammatory effects. It blocks the pathological signal substances expressed by abnormal immune system in psoriasis by inhibiting the activity of protein kinase C in keratinocytes and polymorphonuclear leukocytes, inhibiting the secretion of interleukin-1, 6, 8 and tumor necrosis factor α by human peripheral blood monocytes; and reduces the amount of transforming growth factor-α in keratinocytes and its affinity with epidermal growth factor receptor, thereby producing anti-keratinocyte proliferation and anti-inflammatory effects. It can cause proliferation of mouse tail granular cells and down-regulate the expression of transglutaminase (TGase) mRNA, indicating that it has the effect of inducing epithelial cell differentiation. It produces anti-inflammatory effects by inhibiting the production of reactive oxygen species by polymorphonuclear leukocytes induced by phorbol esters.

This product is a drug for increasing white blood cells. Vitamin B4 is a component of nucleic acid and participates in the synthesis of RNA and DNA in the body. When white blood cells are deficient, it can promote white blood cell proliferation.

1. Effect on water and electrolyte excretion: It can increase the excretion of water, sodium, chloride, potassium, calcium, magnesium, phosphorus, etc., inhibit the active reabsorption of NaCl by the thick-walled segment of the renal tubular loop, reduce the reabsorption of Na+ and Cl-, and promote the secretion of K+ by the distal tubule. Short-term use can increase uric acid excretion, while long-term use can cause hyperuricemia. 2. Effect on hemodynamics: It increases the content of prostaglandin E2 by inhibiting the activity of prostaglandin degrading enzymes, dilates blood vessels, reduces renal vascular resistance, and increases renal blood flow, which helps prevent acute renal failure and treat acute left heart failure.

It has a direct relaxant effect on the smooth muscles of the respiratory tract; partly by inhibiting phosphodiesterase to increase the intracellular cAMP content; partly as a result of the release of endogenous adrenaline and norepinephrine; as a purine receptor blocker, it can counteract the contractile effect of adenine and other substances on the respiratory tract; it enhances the contractility of the diaphragm and improves respiratory function.

It enhances the water solubility of aminophylline and indirectly participates in the bronchodilator effect.

It has a strong antipyretic effect on rabbits with fever caused by bacterial endotoxins; it can counteract the increased permeability of capillary walls caused by xylene or histamine; it has a significant sedative effect; it can significantly promote the adrenal cortex function of rats and enhance the body's emergency response to pathogen infection; it has a certain inactivation effect on influenza virus type A1, type A3, pneumonia adenovirus (Adv) type III, type IV, enterosyncytial virus and respiratory syncytial virus (RSV) in vitro.