Changchun Dirui Pharmaceutical Co., Ltd.

Cough and asthma medicine

Cough and asthma medicine

Cough and asthma medicine

Cough and asthma medicine

Cough and asthma medicine

Diclofenac is a non-steroidal anti-inflammatory analgesic derived from phenylacetic acid. Its mechanism of action is to inhibit the activity of cyclooxygenase, thereby blocking the conversion of arachidonic acid into prostaglandins. At the same time, it can also promote the binding of arachidonic acid with triglycerides (triacylglycerols), reduce the concentration of free arachidonic acid in cells, and indirectly inhibit the synthesis of leukotrienes. Diclofenac is a stronger non-steroidal anti-inflammatory drug, and its inhibitory effect on prostaglandin synthesis is stronger than that of aspirin and indomethacin.

It has atropine-like parasympathetic inhibitory effect, and can cause mydriasis and accommodation paralysis after drug absorption

It has a sympathetic nerve excitatory effect, and after absorption, it manifests as mydriasis and local vasoconstriction

It has high antibacterial activity against common aerobic Gram-positive bacteria, such as Staphylococcus aureus (including those resistant to penicillin G), Staphylococcus epidermidis, beta-hemolytic Streptococcus, viridans Streptococcus and Streptococcus pneumoniae. It has good antibacterial effect on anaerobic bacteria, including Clostridium diphtheriae, and Clostridium perfringens. It has no activity against Gram-negative bacteria such as enterococci, meningococci, Neisseria gonorrhoeae, and Haemophilus influenzae, as well as fungi. There is no cross-resistance with penicillin, chloramphenicol, cephalosporins and tetracyclines, and there is partial cross-resistance with macrolides. It acts on the 50S subunit of the ribosome of sensitive bacteria, preventing the extension of the peptide chain, thereby inhibiting the protein synthesis of bacterial cells. It is generally an antibacterial agent, but at high concentrations, it also has a bactericidal effect on certain bacteria.