Ticarcillin

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Ticarcillin
Ticarcillin.svg
Systematic (IUPAC) name
(2S,5R,6R)-6-{[(2S)-2-carboxy-2-(3-thienyl)acetyl]amino}-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
Clinical data
AHFS/Drugs.com monograph
MedlinePlus a685037
Pregnancy cat. B2 (AU) B (US)
Legal status Prescription only
Routes Intravenous
Pharmacokinetic data
Protein binding 45%
Half-life 1.1 hours
Excretion Renal
Identifiers
CAS number 34787-01-4 YesY
ATC code J01CA13 J01CR03
PubChem CID 36921
DrugBank DB01607
ChemSpider 33876 YesY
UNII F93UJX4SWT YesY
KEGG D08593 YesY
ChEBI CHEBI:9587 YesY
ChEMBL CHEMBL1449 YesY
Chemical data
Formula C15H16N2O6S2 
Mol. mass 384.429 g/mol
 YesY (what is this?)  (verify)

Ticarcillin is a carboxypenicillin. It is almost invariably[citation needed] sold and used in combination with clavulanate as Timentin. Because it is a penicillin, it also falls within the larger class of beta-lactam antibiotics. Its main clinical use is as an injectable antibiotic for the treatment of gram-negative bacteria, particularly Pseudomonas aeruginosa. It is also one of the few antibiotics capable of treating Stenotrophomonas maltophilia infections.

It is provided as a white or pale-yellow powder. It is highly soluble in water, but should be dissolved only immediately before use to prevent degradation.

Mechanism of action[edit]

Ticarcillin's antibiotic properties arise from its ability to prevent cross-linking of peptidoglycan during cell wall synthesis, when the bacteria tries to divide, causing cell death.

Ticarcillin, like penicillin, contains a β-lactam ring that can be cleaved by β-lactamases, resulting in inactivation of the antibiotic. Those bacteria that can express β-lactamases are, therefore, resistant to β-lactam antibiotics. Due, at least in part, to the common β-lactam ring, ticarcillin can cause reactions in patients allergic to penicillin. Ticarcillin is also often paired with a β-lactamase inhibitor such as clavulanic acid (co-ticarclav).

Other uses[edit]

In molecular biology, ticarcillin is used to as an alternative to ampicillin to test the uptake of marker genes into bacteria. It prevents the appearance of satellite colonies that occur when ampicillin breaks down in the media. It is also used in plant molecular biology to kill Agrobacterium, which is used to deliver genes to plant cells.

Dosing and posology[edit]

Ticarcillin is not absorbed orally, and therefore must be given by intravenous or intramuscular injection

Trade names and preparations[edit]