Comparative Pharmacology
Head-to-head clinical analysis: KANAMYCIN versus NEOMYCIN AND POLYMYXIN B SULFATE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: KANAMYCIN versus NEOMYCIN AND POLYMYXIN B SULFATE.
KANAMYCIN vs NEOMYCIN AND POLYMYXIN B SULFATE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Aminoglycoside antibiotic that irreversibly binds to the 30S ribosomal subunit, causing misreading of mRNA and inhibiting protein synthesis.
Neomycin is an aminoglycoside antibiotic that binds to the 30S ribosomal subunit, causing misreading of mRNA and inhibiting protein synthesis. Polymyxin B sulfate is a cationic detergent that disrupts bacterial cell membrane permeability by interacting with phospholipids, leading to cell death.
15 mg/kg/day IM or IV in divided doses every 12 hours. Maximum daily dose: 1.5 g.
For irrigation of urinary bladder: 1 mL of solution containing 40 mg neomycin and 200,000 units polymyxin B per mL diluted in 1 liter of 0.9% sodium chloride, instilled via continuous irrigation at a rate of 1 liter per 24 hours. For topical use: apply thin layer to affected area 2-4 times daily.
None Documented
None Documented
Clinical Note
moderateKanamycin + Digoxin
"The serum concentration of Digoxin can be decreased when it is combined with Kanamycin."
Clinical Note
moderateKanamycin + Digitoxin
"The serum concentration of Digitoxin can be decreased when it is combined with Kanamycin."
Clinical Note
moderateKanamycin + Deslanoside
"The serum concentration of Deslanoside can be decreased when it is combined with Kanamycin."
Clinical Note
moderateKanamycin + Acetyldigitoxin
Terminal elimination half-life is 2-4 hours in patients with normal renal function (creatinine clearance >80 mL/min). In anuria, half-life may extend to 50-100 hours, necessitating dose adjustment based on renal function.
Neomycin: 2-3 hours (normal renal function), prolonged to 24-48 hours in renal impairment; Polymyxin B: 4.5-6 hours (normal renal function), extended significantly in renal failure.
Primarily renal excretion via glomerular filtration; approximately 80-90% of administered dose is excreted unchanged in urine within 24 hours. Biliary/fecal excretion is minimal (<1%).
Renal: ~90-95% (neomycin, polymyxin B) unchanged; fecal: 5-10% (biliary excretion negligible).
Category C
Category A/B
Aminoglycoside Antibiotic
Aminoglycoside Antibiotic
"The serum concentration of Acetyldigitoxin can be decreased when it is combined with Kanamycin."