It combines with pyrophosphate in the body to form a coenzyme, participates in the oxidative decarboxylation reaction of pyruvate and α-ketoglutarate in sugar metabolism, and is necessary for sugar metabolism. When it is deficient, oxidation is blocked to form pyruvate and lactic acid accumulation, which affects the body's energy supply and leads to symptoms of the nervous and cardiovascular systems, such as multiple peripheral neuritis (paresthesia, neuralgia, limb weakness, muscle aches and atrophy), cardiovascular dysfunction (palpitations, shortness of breath, chest tightness, cardiac hypertrophy, liver and lung congestion and peripheral edema), and digestive tract symptoms (loss of appetite, weakness, weight loss), etc.

Broad-spectrum antibacterial agent, with bactericidal effect at high concentration. It has antibacterial effect on Streptococcus pneumoniae, hemolytic Streptococcus, Streptococcus viridans and some Staphylococci, Clostridium perfringens, Bacillus anthracis, Yersinia pestis, Corynebacterium diphtheriae, Clostridium tetani, Brucella, Haemophilus influenzae, Campylobacter, Vibrio cholerae, etc. It also has inhibitory effect on Rickettsia, Mycoplasma, Chlamydia, Spirochete, and some protozoa. It binds to the A position of the 30S subunit of the bacterial ribosome, preventing the connection of aminoacyl-tRNA at this position, thereby inhibiting the growth of peptide linkage and affecting the synthesis of bacterial protein.