The bactericidal ability of coal phenol soap solution is similar to that of phenol, and its carbolic acid coefficient varies with the composition and bacterial species, ranging from 1.6 to 5. A solution containing 0.6% to 1% of this product can kill most pathogenic bacteria in 10 minutes, and killing spores requires a higher concentration and a longer time. Oral administration can cause death.

This product belongs to the triphenylmethane dye disinfectant, which can compete with the microbial enzyme system for hydrogen ions, making the enzyme inactive and oxidized state, and exerting a bactericidal effect. It mainly kills Gram-positive bacteria such as Staphylococcus, Corynebacterium diphtheriae, Pseudomonas aeruginosa, Candida albicans, and Epidermophyton, and has almost no effect on other Gram-negative bacteria and acid-fast bacilli. This product has low toxicity, no irritation to tissues, and can condense with necrotic tissues to form a protective film, playing an astringent role.

Cationic surfactants are broad-spectrum fungicides that can change the permeability of bacterial cytoplasmic membranes, causing bacterial cytoplasmic substances to extravasate, hindering their metabolism and killing them. They have a strong effect on Gram-positive bacteria, but are ineffective against Pseudomonas aeruginosa, acid-fast bacilli and bacterial spores. They can quickly bind to proteins, and their effects are significantly reduced in the presence of blood, cotton, cellulose and organic matter. They are non-irritating to the skin at concentrations below 0.1%.

Intramuscular or intravenous injection can depress and relieve spasms on the central nervous system; magnesium ions inhibit the release of acetylcholine by motor nerve endings, block nerve and muscle conduction, relax skeletal muscles, and prevent and control convulsions (eclampsia); magnesium ions act directly on uterine muscle cells, antagonize the effect of calcium ions on uterine muscle contraction, and inhibit uterine contraction; external application of 50% solution can relieve inflammation and pain through hot compress; oral administration is difficult to absorb, increases the osmotic pressure in the intestinal cavity, and a large amount of water causes the intestine to expand, leading to diarrhea; oral drug concentration (33%) has a choleretic effect.

Not yet clear