Product Information
Registration Status: ActiveSIN04413P
POLYBAMYCIN OINT. is approved to be sold in Singapore with effective from 1990-03-05. It is marketed by ZYFAS MEDICAL CO, with the registration number of SIN04413P.
This product contains Bacitracin 400 u/g,Neomycin 3.5mg/g, and Polymyxin B 5000 u/g in the form of OINTMENT. It is approved for TOPICAL use.
This product is manufactured by SHIN POONG PHARMACEUTICAL CO LTD in KOREA, and in REPUBLIC OF.
It is a Prescription Only Medicine that can only be obtained from a doctor or a dentist, or a pharmacist with a prescription from a Singapore-registered doctor or dentist.
Product Reference
Important Note: For generic product, the SPC/PIL provided may not be brand specific.
{{/items}} {{^items}}Description
Bacitracin is a mixture of related cyclic polypeptides produced by organisms of the licheniformis group of Bacillus subtilis var Tracy. Its unique name derives from the fact that the bacillus producing it was first isolated in 1943 from a knee scrape from a girl named Margaret Tracy. As a toxic and difficult-to-use antibiotic, bacitracin doesn't work well orally. However, it is very effective topically. Bacitracin is synthesised via the so-called nonribosomal peptide synthetases (NRPSs), which means that ribosomes are not involved in its synthesis.
Indication
For the treatment of infants with pneumonia and empyema caused by staphylococci shown to be susceptible to the drug. Also used in ointment form for topical treatment of a variety of localized skin and eye infections, as well as for the prevention of wound infections. Used against gram positive bacteria. Bacitracin is also used as an inhibitor of proteases and other enzymes. However, specific activity of bactracin's inhibition of protein disulfide isomerase has been called into question.
Mechanism of Action
Bacitracin intereferes with the dephosphorylation of the 55-carbon, biphosphate lipid transport molecule C55-isoprenyl pyrophosphate (undecaprenyl pyrophosphate), which carries the building blocks of the peptidoglycan bacterial cell wall outside the inner membrane for construction. Bacitracin binds divalent transition metal ions (Mn(II), Co(II), Ni(II), Cu(II), and Zn(II)) which binds and oxidatively cleave DNA.
Pharmacokinetics
- Absorption
- Absorption of bacitracin following intramuscular injection is rapid and complete. Absorption from the gastrointestinal tract following oral administration is not appreciable. Absorption following topical application is negligible.
- Distribution
- Metabolism
- Elimination
Toxicity
Oral, mouse: LD50 = >3750 mg/kg.
Active Ingredient/Synonyms
Bacitracin a2a | Bacitracin F, 1-(N-((2-(1-amino-2-methylbutyl)-4,5-dihydro-4-thiazolyl)carbonyl)-L-leucine)- | Bacitracin |
Source of information: Drugbank (External Link). Last updated on: 3rd July 18. *Trade Name used in the content below may not be the same as the HSA-registered product.
Description
A component of neomycin that is produced by Streptomyces fradiae. On hydrolysis it yields neamine and neobiosamine B. (From Merck Index, 11th ed)
Indication
For the treatment of bacterial blepharitis, bacterial bonjunctivitis, corneal injuries, corneal ulcers and meibomianitis. For the prophylaxis of ocular infections following foreign body removal
Mechanism of Action
Framycetin binds to specific 30S-subunit proteins and 16S rRNA, four nucleotides of 16S rRNA and a single amino acid of protein S12. This interferes with decoding site in the vicinity of nucleotide 1400 in 16S rRNA of 30S subunit. This region interacts with the wobble base in the anticodon of tRNA. This leads to interference with the initiation complex, misreading of mRNA so incorrect amino acids are inserted into the polypeptide leading to nonfunctional or toxic peptides and the breakup of polysomes into nonfunctional monosomes.
Active Ingredient/Synonyms
Fradiomycin B | Framicetina | Framycetin | Framycétine | Framycetinum | Neomycin B | Framycetin |
Source of information: Drugbank (External Link). Last updated on: 3rd July 18. *Trade Name used in the content below may not be the same as the HSA-registered product.
Description
Polymyxin B sulfate is a mixture of polymyxins B1 and B2, obtained from Bacillus polymyxa strains. They are basic polypeptides of about eight amino acids and have cationic detergent action on cell membranes. Polymyxin B is used for infections with gram-negative organisms, but may be neurotoxic and nephrotoxic. All gram-positive bacteria, fungi, and the gram-negative cocci, N. gonorrhea and N. menigitidis, are resistant. It is appropriate for treatment of infections of the urinary tract, meninges, and blood stream, caused by susceptible strains of Pseudomonas aeruginosa.
Indication
For treatment of infections of the urinary tract, meninges, and blood stream, caused by susceptible strains of Pseudomonas aeruginosa.
Mechanism of Action
Polymyxin B sulfate has a bactericidal action against almost all gram-negative bacilli except the Proteus group. Polymyxin B sulfate interacts with the lipopolysaccharide of the cytoplasmic outer membrane of Gram-negative bacteria, altering membrane permeability and causing cell death. It does not need to enter the cell.
Pharmacokinetics
- Absorption
- Not absorbed from the normal alimentary tract.
- Distribution
- Metabolism
- Elimination
Toxicity
Overdose can cause stomach pains, vomiting, and diarrhea.
Active Ingredient/Synonyms
Polimixina B | Polymyxin B | Polymyxin B Sulphate | Polymyxin-B-Sulfat | Polymyxine B | Polymyxine B (sulfate de) | Polymyxini B sulfas | Polymyxinum B | Polymyxin B Sulfate |
Source of information: Drugbank (External Link). Last updated on: 3rd July 18. *Trade Name used in the content below may not be the same as the HSA-registered product.