البلد: ماليزيا
اللغة: الإنجليزية
المصدر: NPRA (National Pharmaceutical Regulatory Agency, Bahagian Regulatori Farmasi Negara)
NEOMYCIN SULPHATE; OXYTETRACYCLINE
Shennong Animal Health (Malaysia) Sdn. Bhd.
NEOMYCIN SULPHATE; OXYTETRACYCLINE
500 gm
Shennong Animal Health (Malaysia) Sdn. Bhd.
NEOTM SOLUBLE POWDER (FOR VETERINARY USE ONLY) COMPOSITION Neomycin (as sulfate) …………………………….………………..……................. 200 mg/g Oxytetracycline …………………………………………………………………….………. 200 mg/g PRODUCT DESCRIPTION The finished product is light yellowish color powder. TARGET SPECIES Cattle (calves), sheep (lambs), swine and poultry. PHARMACODYNAMIC Neomycin is an antibiotic of the aminoglycoside obtained from Streptomyces fradiae. Its spectrum of activity includes Grampositive, especially staphylococci and less active streptococci, and Gram negative, especially Escherichia coli. Neomycin binds to the 30S subunit of the bacterial ribosome, which disturbs the reading of the constituent code of the messenger RNA, and finally the bacterial protein synthesis. At high concentrations, it has been shown that aminoglycosides damage the bacterial cell wall, adding bactericidal properties to bacteriostatic properties. Oxytetracycline binds reversibly to receptors of the 30S ribosomal fraction, this leads to a blocking of the binding of aminoacyl-tRNA to the corresponding site of the ribosome complex messenger-RNA. This results in inhibition of protein synthesis and therefore a growth arrest of the bacterial culture. Oxytetracycline is a bacteriostatic. The bacteriostatic activity of oxytetracycline involves penetration of the substance into the bacterial cell. The penetration of oxytetracycline is exercised by both passive and active dissemination. The main possible resistance mode is related to the presence of an R factor responsible for a decrease in active transportation oxytetracycline. Oxytetracycline is a broad spectrum antibiotic. It is primarily active against microorganisms Gram positive and negative, aerobic and anaerobic, and against mycoplasma, Chlamydia and Rickettsiae. The acquired resistance to oxytetracycline was reported. Such resistance is usually plasmid origin. Crossresistance to other tetracyclines is possible. Conti اقرأ الوثيقة كاملة