Tobramycin Inj

  • Bacterial infections

Tobramycin Inj Generic Name & Formulations

General Description

Tobramycin sulfate 10mg/mL, 40mg/mL; soln for IM inj or IV infusion after dilution; contains 1.56mg sodium per 20mg/mL vial; contains sulfites.

Pharmacological Class


How Supplied

Contact supplier.

Tobramycin Inj Indications


Serious susceptible infections, including lower respiratory tract, CNS (eg, meningitis), intraabdominal (eg, peritonitis), septicemia, bone, skin and skin structure, complicated and recurrent UTIs or uncomplicated UTIs not susceptible to other antibiotics.

Tobramycin Inj Dosage and Administration


Obesity: base dose on lean body mass. Give by IM inj; or IV infusion over 20–60 mins. Serious infections: 3mg/kg/day in 3 divided doses every 8 hours. Life-threatening infections: up to 5mg/kg/day in 3–4 divided doses; max 5mg/kg/day unless serum levels monitored; reduce to 3mg/kg/day as soon as clinically indicated. Usual duration: 7–10 days. Severe cystic fibrosis: initially 10mg/kg/day in 4 divided doses; adjust dose based on serum levels. Renal impairment: reduce dose; see literature.


Give by IM inj; or IV infusion over 20–60 mins. Premature or neonates ≤1 week: up to 4mg/kg/day in 2 divided doses every 12 hours. All others >1 week: 6–7.5mg/kg/day in 3–4 divided doses (2–2.5mg/kg every 8 hours or 1.5–1.89mg/kg every 6 hours). Usual duration: 7–10 days. Renal impairment: reduce dose; see literature.

Tobramycin Inj Contraindications

Not Applicable

Tobramycin Inj Boxed Warnings

Not Applicable

Tobramycin Inj Warnings/Precautions


Monitor for nephro- and neurotoxicity; avoid peak serum levels >12micrograms/mL and trough levels >2micrograms/mL. Discontinue or adjust dose if auditory, vestibular, or renal dysfunction develops; monitor serum levels periodically. Do audiogram in high-risk patients. Maintain adequate hydration. Prolonged use or excessive doses. Asthma. Muscular disorders (eg, myasthenia gravis, parkinsonism). Elderly. Premature or neonatal infants. Pregnancy (Cat.D): not recommended.

Tobramycin Inj Pharmacokinetics

See Literature

Tobramycin Inj Interactions


Avoid concomitant furosemide, ethacrynic acid, other nephro/neurotoxic drugs including cephalosporins. Diuretics may increase toxicity. May potentiate neuromuscular blocking agents.

Tobramycin Inj Adverse Reactions

Adverse Reactions

Nephro- or neurotoxicity, lethargy, confusion, headache, inj site reactions, GI upset, elevated liver enzymes, blood dyscrasias, electrolyte abnormalities, respiratory failure or paralysis, neuromuscular blockade; rare: serious allergic reactions (eg, anaphylaxis, exfoliative dermatitis, Stevens-Johnson Syndrome).

Tobramycin Inj Clinical Trials

See Literature

Tobramycin Inj Note


Formerly known under the brand name Nebcin.

Tobramycin Inj Patient Counseling

See Literature