Interactions with supplements
Vitamin A (Retinol)
Vitamin B3 (Niacin)
Look Up > Drugs > Neomycin and Polymyxin B
Neomycin and Polymyxin B
Pronunciation
U.S. Brand Names
Generic Available
Synonyms
Pharmacological Index
Use
Pregnancy Risk Factor
Contraindications
Adverse Reactions
Drug Interactions
Stability
Mechanism of Action
Pharmacodynamics/Kinetics
Usual Dosage
Administration
Mental Health: Effects on Mental Status
Mental Health: Effects on Psychiatric Treatment
Dental Health: Local Anesthetic/Vasoconstrictor Precautions
Dental Health: Effects on Dental Treatment
Patient Information
Nursing Implications
Dosage Forms

Pronunciation
(nee oh MYE sin & pol i MIKS in bee)

U.S. Brand Names
Neosporin® Cream [OTC]; Neosporin® G.U. Irrigant

Generic Available

Yes


Synonyms
Polymyxin B and Neomycin

Pharmacological Index

Antibiotic, Topical


Use

Short-term as a continuous irrigant or rinse in the urinary bladder to prevent bacteriuria and gram-negative rod septicemia associated with the use of indwelling catheters; to help prevent infection in minor cuts, scrapes, and burns


Pregnancy Risk Factor

C/D (for G.U. irrigant)


Contraindications

Hypersensitivity to neomycin or polymyxin B or any component; ophthalmic use for topical cream


Adverse Reactions

1% to 10%:

Genitourinary: Bladder irritation

Local: Burning

Neuromuscular & skeletal: Neuromuscular blockade

Otic: Ototoxicity

Renal: Nephrotoxicity


Drug Interactions

No data reported


Stability

Store irrigation solution in refrigerator; aseptic prepared dilutions (1 mL/1 L) should be stored in the refrigerator and discarded after 48 hours


Mechanism of Action

Refer to individual monographs


Pharmacodynamics/Kinetics

Absorption: Topical: Not absorbed following application to intact skin; absorbed through denuded or abraded skin, peritoneum, wounds, or ulcers


Usual Dosage

Children and Adults:

Topical: Apply cream 1-4 times/day to affected area


Administration

Bladder irrigant: Do not inject irrigant solution; concentrated irrigant solution must be diluted in 1 L normal saline before administration; connect irrigation container to the inflow lumen of a 3-way catheter to permit continuous irrigation of the urinary bladder


Mental Health: Effects on Mental Status

None reported


Mental Health: Effects on Psychiatric Treatment

None reported


Dental Health: Local Anesthetic/Vasoconstrictor Precautions

No information available to require special precautions


Dental Health: Effects on Dental Treatment

No effects or complications reported


Patient Information

See individual agents. Pregnancy/breast-feeding precautions: Inform prescriber if you are or intend to be pregnant. Consult prescriber if breast-feeding.


Nursing Implications

Monitor urinalysis


Dosage Forms

Cream: Neomycin sulfate 3.5 mg and polymyxin B sulfate 10,000 units per g (0.94 g, 15 g)

Solution, irrigant: Neomycin sulfate 40 mg and polymyxin B sulfate 200,000 units per mL (1 mL, 20 mL)


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