Ceftiofur hydrochloride 是头孢噻呋的盐酸盐形式，是一种β-内酰胺酶稳定的半合成广谱头孢菌素，具有抗菌活性。

Ceftiofur Hydrochloride is the hydrochloride salt form of ceftiofur, a semisynthetic, beta-lactamase-stable, broad-spectrum, third-generation cephalosporin with antibacterial activity.

Ceftiofur can downregulate tumor necrosis factor-alpha (TNF-alpha), interleukin-1beta (IL-1beta), and interleukin-6 (IL-6), but did not affect interleukin-10 (IL-10) production. Ceftiofur significantly inhibits extracellular signal-regulated kinase (ERK), p38, and c-jun NH(2)-terminal kinase (JNK) phosphorylation protein expression in RAW 264.7 cells. Ceftiofur also inhibits p65-NF-kappaB translocation into the nucleus in RAW 264.7 cells. [1]

Ceftiofur treatment is associated with a significant decrease in rectal temperature and diarrhea in neonatal calves. Ceftiofur results in a significant decrease in fecal shedding of Salmonella organisms in neonatal calves. [2] Ceftiofur hydrochloride (intrauterine (i.u.)) reduces the prevalence of positive uterineculture in cows with clinical endometritis (29.0 vs. 51.4%) and reduces the overall prevalence of Arcanobacterium pyogenes (1.0 vs. 7.6%) at 51 d in milk (DIM) . Ceftiofur hydrochloride reduces the prevalence of uterine infection in cows with clinical endometritis, and the prevalence of A. pyogenes, but does not affect the prevalence of subclinical endometritis or fertility of dairy cows already receiving PGF(2alpha). [3] Ceftiofur hydrochloride (i.m. injection) results in C(max) of 11.8 mg/mL at 1-4 hours after injection, the mean area under the curve (AUC) of 216 m g x h/mL in pigs. [4] Ceftiofur hydrochloride (2.2 mg of CE/kg, SC or IM, once daily for 5 days) is efficacious for treatment of acute postpartum metritis (APM) in dairy cows. [5]

103980-44-5

C19H18ClN5O7S3

560.01

U-67279A;头孢噻呋盐酸盐;Excenel hydrochloride;Ceftiofur HCl;Ceftiofur hydrochloride

Ethanol:21 mg/mL (37.5 mM)
DMSO:93 mg/mL (166.1 mM)
H2O:<1 mgml
Powder: -20°C for 3 years
In solvent: -80°C for 2 years