|White Crystal Power
|Penicillin G potassium
|Airtight, cool, dry place
Penicillin G potassium is easily soluble in water, saline and glucose solutions. The aqueous solution is easy to fail when placed at room temperature, and it will quickly fail when encountering acid, alkali, oxidant, etc. It has a good antibacterial effect against streptococcus species such as hemolytic streptococci, streptococcus pneumoniae and staphylococci that do not produce penicillinase. Penicillin G potassium has a moderate antibacterial effect on enterococci. Neisseria gonorrhoeae, Neisseria meningitidis, Corynebacterium diphtheriae, Bacillus anthracis, Actinomyces bovis, Streptomyces candida, Listeria monocytogenes, Leptospira and Treponema pallidum are sensitive to this product. This product also has certain antibacterial activity against Haemophilus influenzae and B. pertussis, and other Gram-negative aerobic or facultative anaerobic bacteria have poor sensitivity to this product. This product has good antibacterial effect on Clostridium, Digestive Streptococcus anaerobic bacteria and Bacteroides melanogenes, etc. It has poor antibacterial effect on Bacteroides fragilis. Penicillin exerts a bactericidal effect by inhibiting bacterial cell wall synthesis.
Function and Application
The product of h. influenzae and pertussis thibaut also has certain antibacterial activity, other gram-negative aerobic and facultative anaerobic bacteria to this poor sensitivity. The product of clostridium, streptococcus, anaerobic bacteria and produce melanin bacteroides good antibacterial effect, the antibacterial effect of bacteroides fragilis.
Penicillin has a bactericidal effect by inhibiting the binding of bacterial cell wall tetrapeptide chain and pentapeptide cross - bridge and impeding cell wall synthesis. It is effective for gram-positive bacteria, but penicillin has little effect on gram-negative bacteria due to the lack of pentapeptide cross-linking bridge.