Gentak
Brand names,
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Analogs
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Brand Names Mixture
- Diprogen Crm (Betamethasone Dipropionate + Gentamicin Sulfate)
- Diprogen Ont (Betamethasone Dipropionate + Gentamicin Sulfate)
- Garasone Oph/Ot Sol (Betamethasone + Gentamicin Sulfate)
- Garasone Ophthalmic Ointment (Betamethasone + Gentamicin Sulfate)
- Gentamicin Sulfate in Nacl 0.9% Inj (Gentamicin Sulfate + Sodium Chloride)
- Gentamicin Sulfate in Nacl 0.9% Inj (Gentamicin Sulfate + Sodium Chloride)
- Gentocin Durafilm (Betamethasone 21-Acetate + Gentamicin Sulfate)
- Gentocin Otic Solution (Betamethasone + Gentamicin Sulfate)
- Otomax Ointment (Betamethasone + Clotrimazole + Gentamicin Sulfate)
- Sandoz Pentasone (Betamethasone + Gentamicin Sulfate)
- Topagen Ont (Betamethasone + Gentamicin Sulfate)
- Topagen Spray (Betamethasone + Gentamicin Sulfate)
- Valisone G Cream (Betamethasone + Gentamicin Sulfate)
- Valisone G Ointment (Betamethasone + Gentamicin Sulfate)
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Chemical_Formula
C21H43N5O7
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RX_link
http://www.rxlist.com/cgi/generic2/pedgenta.htm
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fda sheet
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msds (material safety sheet)
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Synthesis Reference
No information avaliable
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Molecular Weight
477.596 g/mol
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Melting Point
105°C (218-237°C as sulfate salt)
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H2O Solubility
100 mg/mL
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State
Solid
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LogP
-3.637
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Dosage Forms
Cream; Drops; Liquid; Ointment; Solution
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Indication
For treatment of serious infections caused by susceptible strains of the following microorganisms: P. aeruginosa, Proteus species (indole-positive and indole-negative), E. coli, Klebsiella-Enterobactor-Serratia species, Citrobacter species and Staphylococcus species (coagulase-positive and coagulase-negative).
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Pharmacology
Gentamicin is a broad spectrum aminoglycoside antibiotic. Aminoglycosides work by binding to the bacterial 30S ribosomal subunit, causing misreading of t-RNA, leaving the bacterium unable to synthesize proteins vital to its growth. Aminoglycosides are useful primarily in infections involving aerobic, Gram-negative bacteria, such as Pseudomonas, Acinetobacter, and Enterobacter. In addition, some mycobacteria, including the bacteria that cause tuberculosis, are susceptible to aminoglycosides. Infections caused by Gram-positive bacteria can also be treated with aminoglycosides, but other types of antibiotics are more potent and less damaging to the host. In the past the aminoglycosides have been used in conjunction with penicillin-related antibiotics in streptococcal infections for their synergistic effects, particularly in endocarditis. Aminoglycosides are mostly ineffective against anaerobic bacteria, fungi and viruses.
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Absorption
Injections lead to peak serum concentrations in 30-60 minutes. Topical gentamicin is readily absorbed from large burned, denuded, or granulating areas but not through intact skin. Absorption of gentamicin is faster and greater with the cream compared to the ointment. Gentamicin is absorbed in small quantities following topical application to the eye. Gentamicin is also absorbed in small amounts following topical application to the ear (especially if the eardrum is perforated or if tissue damage is present).
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side effects and Toxicity
Mouse, intravenous LD50: 52 mg/kg; rat, intravenous LD50: 96 mg/kg.
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Patient Information
No information avaliable
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Organisms Affected
Enteric bacteria and other eubacteria