Chemical Properties
Off-White Solid
Description
Ceftiofur Hydrochloride(103980-44-5) is the hydrochloride salt form of ceftiofur, a semisynthetic, beta-lactamase-stable, broad-spectrum, third-generation cephalosporin with antibacterial activity. Ceftiofur binds to and inactivates penicillin-binding proteins (PBPs) located on the inner membrane of the bacterial cell wall. PBPs are enzymes involved in the terminal stages of assembling the bacterial cell wall and in reshaping the cell wall during growth and division. Inactivation of PBPs interferes with the cross-linkage of peptidoglycan chains necessary for bacterial cell wall strength and rigidity. This results in the weakening of the bacterial cell wall and causes cell lysis.
Application
Ceftiofur hydrochloride(103980-44-5) is used for the treatment and control of infections in cattle and pigs caused by susceptible pathogens. It is approved for the treatment of bovine respiratory disease caused by Bartonella mansoni, Bartonella multocida and Bartonella somniferum (formerly Bartonella somniferum).
Ceftiofur hydrochloride is also used for the treatment of bovine interdigital necrotizing bacillosis (rotten foot disease) caused by Fusobacterium necrophorum or Bacteroides melaninogenicus. Ceftiofur hydrochloride has been shown to be effective at a dose of 2.2 mg/kg for the treatment of acute postpartum onychomycosis in dairy cows or by intrauterine instillation (1 g) for the treatment of retained foetal membranes.
Ceftiofur hydrochloride can be used for the treatment of SRD caused by Actinobacillus, Plasmodium multocida, Salmonella cholera and Streptococcus suis.Ceftiofur hydrochloride and ceftiofur amorphous acid can also be administered via the intra-udder route in dairy cows. For intramammary use, a specific formulation (Spectramast DC) is recommended. Although ceftiofur sodium has been used to treat infections in horses and dogs, there is little experience with the administration of ceftiofur sodium hydrochloride in these species.
Veterinary Drugs and Treatments
In swine, ceftiofur HCl injection is labeled for the treatment and
control of swine bacterial respiratory disease (swine bacterial
pneumonia) associated with Actinobacillus (Haemophilus) pleuropneumoniae,
Pasteurella multocida, Salmonella choleraesuis and
Streptococcus suis.
In cattle, ceftiofur HCl is labeled for the treatment of the following
bacterial diseases: Bovine respiratory disease (BRD, shipping
fever, pneumonia) associated with Mannheimia haemolytica,
Pasteurella multocida, and Histophilus somni; Acute bovine interdigital
necrobacillosis (foot rot, pododermatitis) associated with
Fusobacterium necrophorum and Bacteroides melaninogenicus; and
acute metritis (0 – 14 days post-partum) associated with bacterial
organisms susceptible to ceftiofur.
The intramammary syringe for dry dairy cattle (Spectramast
DC?) is labeled for the treatment of subclinical mastitis in dairy
cattle at the time of dry off associated with Staphylococcus aureus,
Streptococcus dysgalactiae, and Streptococcus uberis. The intramammary
syringe for lactating dairy cattle (Spectramast LC?) is labeled
for the treatment of clinical mastitis in lactating dairy cattle associated
with coagulase-negative staphylococci, Streptococcus dysgalactiae,
and Escherichia coli.
Toxics Screening Level
The initial threshold screening level (ITSL) for Ceftiofur Hydrochloride is 166 μg/m3 based on an annual averaging time.
