INDICATION
TOBI® PODHALER® (Tobramycin Inhalation Powder) 28 mg per capsule and TOBI® (Tobramycin
Inhalation Solution) 300 mg per 5 mL solution are indicated for the management of cystic
fibrosis in adults and pediatric patients with Pseudomonas aeruginosa.
Safety and efficacy have not been demonstrated in patients under the age of 6 years, patients
with forced expiratory volume in 1 second (FEV1) <25% or >80%
predicted for TOBI PODHALER and <25% or >75% for TOBI, or patients colonized with
Burkholderia cepacia.
IMPORTANT SAFETY INFORMATION
TOBI PODHALER and TOBI are contraindicated in patients with known hypersensitivity to any
aminoglycoside.
Bronchospasm can occur with inhalation of TOBI PODHALER or TOBI. Bronchospasm should be
treated as medically appropriate.
Caution should be exercised when prescribing TOBI PODHALER or TOBI to patients with known or
suspected auditory, vestibular, renal, or neuromuscular dysfunction.
Ototoxicity, as measured by complaints of hearing loss or tinnitus, was reported by patients
in the TOBI PODHALER and TOBI clinical studies. Tinnitus may be a sentinel symptom of
ototoxicity, and therefore the onset of this symptom warrants caution. Ototoxicity, manifested
as both auditory and vestibular toxicity, has been reported with parenteral aminoglycosides.
Vestibular toxicity may be manifested by vertigo, ataxia, or dizziness.
Cases of ototoxicity with aminoglycosides have been observed in patients with certain
variants in the mitochondrially encoded 12S rRNA gene (MT-RNR1), particularly the m.1555A>G
variant. Ototoxicity occurred in some patients even when their aminoglycoside serum levels
were within the recommended range. Mitochondrial DNA variants are present in less than 1% of the general US population, and the
proportion of the variant carriers who may develop ototoxicity as
well as the severity of ototoxicity is unknown. In case of known maternal history of
ototoxicity due to aminoglycoside use or a known mitochondrial DNA variant in the
patient, consider alternative treatments other than aminoglycosides unless the increased risk
of permanent hearing loss is outweighed by the severity of infection
and lack of safe and effective alternative therapies.
Caution should be exercised when prescribing TOBI PODHALER or TOBI to patients with known or
suspected renal dysfunction. Nephrotoxicity was not observed during TOBI PODHALER clinical
studies but has been associated with aminoglycosides as a class.
TOBI PODHALER and TOBI should be used cautiously in patients with neuromuscular disorders,
such as myasthenia gravis or Parkinson’s disease, since aminoglycosides may aggravate muscle
weakness because of a potential curare-like effect on neuromuscular function.
Aminoglycosides can cause fetal harm when administered to a pregnant woman. Patients who use
TOBI PODHALER or TOBI during pregnancy, or who become pregnant while taking TOBI PODHALER or
TOBI, should be apprised of the potential hazard to the fetus. The amount of tobramycin
excreted in human breast milk is unknown. However, systemic absorption of tobramycin following
inhaled administration is expected to be minimal. A decision should be made whether to
discontinue nursing or TOBI PODHALER. TOBI may cause intestinal flora alteration. Advise a
woman to monitor the breastfed infant for loose or bloody stools and candidiasis.
Patients receiving concomitant TOBI PODHALER or TOBI and parenteral aminoglycoside therapy
should be monitored as clinically appropriate for toxicities associated with aminoglycosides
as a class. Serum tobramycin levels should be monitored.
Concurrent and/or sequential use of TOBI PODHALER or TOBI with other drugs with neurotoxic,
nephrotoxic, or ototoxic potential should be avoided. Some diuretics can enhance
aminoglycoside toxicity by altering antibiotic concentrations in serum and tissue. TOBI PODHALER or TOBI should not be administered concomitantly with ethacrynic acid, furosemide,
urea, or mannitol.
In clinical trials, the most commonly observed adverse events with TOBI PODHALER occurring at
a frequency of at least 10% were cough, lung disorder, productive cough, dyspnea, pyrexia,
oropharyngeal pain, dysphonia, hemoptysis, and headache. For TOBI, the most common adverse
reactions of at least 5% were increased cough, pharyngitis, increased sputum, dyspnea,
hemoptysis, decreased lung function, voice alteration, taste perversion, and rash.
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit or call .
Please see Full Prescribing Information and Patient Information.
