The combination of sulfamethazine-trimethoprim has a broad spectrum of action, covering gram-positive and gram-negative bacteria. The microorganisms that are very sensitive to the drug include the following bacteria: Escherichia coli, Clostridium spp., Shigella spp., Salmonella spp., Proteus mirabilis, Bacillus anthracis, Pasteurella spp., Haemophilus influenzae, Haemophilus ginar. Streptococcus pneumoniae, S. pyogenes, S. faecalis, S. viridans, S. agalactiae, Staphylococcus aureus, Proteus spp. and Brucella spp.
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Azitrofort Solution for injection Vetavin (Azithromycin), 50 ml Pharmacological properties : Azithromycin is a semi-synthetic substance from the group of
Sulfamethazine is a synthetic chemotherapeutic agent from the sulfamide group. Trimethoprim is a synthetic chemotherapeutic agent derived from diaminopyrimidine.
Separately, each component has a bacteriostatic mechanism, but sulfamethazine and trimethoprim, taken in a 4: 1 ratio, enhance the effect of the drug and give it a bactericidal nature of action.
Such synergy is manifested due to the fact that its components affect two sequential processes that are necessary for the synthesis of tetrahydrofolic acid or bacterial folic acid, which plays a major role in the synthesis of bacterial purines. The bacterial wall is impermeable to folates, so the synthesis of purines depends on the intrinsic synthesizing ability of microorganisms.