Long-acting alpha-receptor blockers (alpha 1, alpha 2) act on postganglionic alpha adrenaline receptors to prevent or reverse the effects of endogenous or exogenous catecholamines, causing peripheral vasodilation and increased blood flow. Blood pressure drops slightly when lying down and can drop significantly when standing upright. A drop in blood pressure can reflexively cause an increase in heart rate.

Potassium chloride is an electrolyte supplement. Potassium is the main cation in cells and an important component for maintaining intracellular osmotic pressure. The concentration in cells is about 150-160 mmol/L, and the concentration in extracellular fluid is lower, only 3.5-5.0 mmol/L. The body mainly relies on the Na-KATPase on the cell membrane to maintain the difference in K and Na concentrations inside and outside the cells. The acid-base balance in the body affects potassium metabolism. For example, when acidosis occurs, H enters the cell. In order to maintain the potential difference inside and outside the cell, K is released to the outside of the cell, causing or aggravating hyperkalemia. The normal intracellular potassium ion concentration and concentration difference are closely related to certain functions of the cell. Potassium is involved in the regulation of acid-base balance, the synthesis of sugars and proteins, and the conversion of adenosine diphosphate to triphosphate.

This product is a non-steroidal anti-inflammatory drug with a strong anti-inflammatory effect, a good effect on inflammatory pain, and a role in promoting uric acid excretion, but a weak antipyretic effect.

This product is a neutral compound of aspirin and acetaminophen bonded by an ester bond. It has antipyretic and analgesic effects, with fewer adverse reactions than aspirin, and is easily tolerated by patients. After oral administration, it is not hydrolyzed in the gastrointestinal tract, is absorbed in the intestine and quickly reaches an effective concentration in the blood, and is characterized by rarely causing gastrointestinal bleeding.

Vitamin K is a substance necessary for the liver to synthesize coagulation factors II, VII, IX and X. Vitamin K deficiency can cause synthesis disorders of these coagulation factors, and clinically, bleeding tendency and prolonged prothrombin time can be seen. Natural vitamin K includes K1 and K2, which are fat-soluble and their absorption depends on the normal secretion of bile. Artificially synthesized vitamin K includes K3 and K4, the former is sodium bisulfite menadione, and the latter is acetyl menadione, which are water-soluble and do not require the presence of bile for their absorption.