General1. Effects Seen with Sympathomimetic Drugs
As with all products containing sympathomimetic amines,
Ipratropium Bromide and Albuterol Sulfate should be used with caution in
patients with cardiovascular disorders, especially coronary insufficiency,
cardiac arrhythmias, and hypertension; in patients with convulsive disorders,
hyperthyroidism, or diabetes mellitus; and in patients who are unusually
responsive to sympathomimetic amines. Large doses of intravenous albuterol have
been reported to aggravate pre-existing diabetes mellitus and ketoacidosis.
Additionally, β-agonists may cause a decrease in serum potassium in some
patients, possibly through intracellular shunting. The decrease is usually
transient, not requiring supplementation.
2. Effects Seen with Anticholinergic Drugs
Due to the presence of ipratropium bromide in Ipratropium Bromide
and Albuterol Sulfate, it should be used with caution in patients with
narrow-angle glaucoma, prostatic hypertrophy, or bladder-neck obstruction.
3. Use in Hepatic or Renal Diseases
Ipratropium Bromide and Albuterol Sulfate has not been studied in
patients with hepatic or renal insufficiency. It should be used with caution in
these patient populations.
Information for Patients
The action of Ipratropium Bromide and Albuterol Sulfate should
last up to 5 hours. Ipratropium Bromide and Albuterol Sulfate should not be used
more frequently than recommended. Patients should be instructed not to increase
the dose or frequency of Ipratropium Bromide and Albuterol Sulfate without
consulting their healthcare provider. If symptoms worsen, patients should be
instructed to seek medical consultation.
Patients must avoid exposing their eyes to this product as temporary
papillary dilation, blurred vision, eye pain, or precipitation or worsening of
narrow-angle glaucoma may occur, and therefore proper nebulizer technique should
be assured, particularly if a mask is used.
If a patient becomes pregnant or begins nursing while on Ipratropium Bromide
and Albuterol Sulfate, they should contact their healthcare provider about use
of Ipratropium Bromide and Albuterol Sulfate.
See the illustrated Patient’s
Instruction for Use in the product package insert.
Drug InteractionsAnticholinergic agents
Although ipratropium bromide is minimally absorbed into the
systemic circulation, there is some potential for an additive interaction with
concomitantly used anticholinergic medications. Caution is, therefore, advised
in the co-administration of Ipratropium Bromide and Albuterol Sulfate with other
drugs having anticholinergic properties.
ß-adrenergic agents
Caution is advised in the co-administration of Ipratropium
Bromide and Albuterol Sulfate and other sympathomimetic agents due to the
increased risk of adverse cardiovascular effects.
ß-receptor blocking agents
These agents and albuterol sulfate inhibit the effect of each
other. β-receptor blocking agents should be used with caution in patients with
hyperreactive airways, and if used, relatively selective ß1 selective agents are recommended.
Diuretics
The electrocardiogram (ECG) changes and/or hypokalemia that may
result from the administration of non-potassium sparing diuretics (such as loop
or thiazide diuretics) can be acutely worsened by β-agonists, especially when
the recommended dose of the β-agonist is exceeded. Although the clinical
significance of these effects is not known, caution is advised in the
co-administration of β-agonist-containing drugs, such as Ipratropium Bromide and
Albuterol Sulfate, with non-potassium sparing diuretics.
Monoamine oxidase inhibitors or tricyclic
antidepressants
Ipratropium Bromide and Albuterol Sulfate should be administered
with extreme caution to patients being treated with monoamine oxidase inhibitors
or tricyclic antidepressants, or within 2 weeks of discontinuation of such
agents because the action of albuterol sulfate on the cardiovascular system may
be potentiated.
Carcinogenesis, Mutagenesis, Impairment of
FertilityAlbuterol Sulfate
In a 2-year study in Sprague-Dawley rats, albuterol sulfate
caused a significant dose-related increase in the incidence of benign leiomyomas
of the mesovarium at and above dietary doses of 2 mg/kg (approximately equal to
the maximum recommended daily inhalation dose for adults on a mg/m2 basis). In another study, this effect was blocked by the
coadministration of propranolol, a non-selective beta-adrenergic antagonist.
In an 18-month study in CD-1 mice, albuterol sulfate showed no evidence of
tumorigenicity at dietary doses up to 500mg/kg (approximately 140 times the
maximum recommended daily inhalation dose for adults on a mg/m2 basis). In a 22-month study in Golden hamsters, albuterol
sulfate showed no evidence of tumorigenicity at dietary doses up to 50 mg/kg
(approximately 20 times the maximum recommended daily inhalation dose for adults
on a mg/m2 basis).
Albuterol sulfate was not mutagenic in the Ames test or a mutation test in
yeast. Albuterol sulfate was not clastogenic in a human peripheral lymphocyte
assay or in an AH1 strain mouse micronucleous assay.
Reproduction studies in rats demonstrated no evidence of impaired fertility
at oral doses of albuterol sulfate up to 50 mg/kg (approximately 25 times the
maximum recommended daily inhalation dose for adults on a mg/m2 basis).
Ipratropium bromide
In 2-year studies in Sprague-Dawley rats and CD-1 mice,
ipratropium bromide showed no evidence of tumorigenicity at oral doses up to 6
mg/kg (approximately 15 times and 8 times the maximum recommended daily
inhalation dose for adults in rats and mice respectively, on a mg/m2 basis).
Ipratropium bromide was not mutagenic in the Ames test and mouse dominant
lethal test. Ipratropium bromide was not clastogenic in a mouse micronucleous
assay.
A reproduction study in rats demonstrated decreased conception and increased
resorptions when ipratropium bromide was administered orally at a dose of 90
mg/kg (approximately 240 times the maximum recommended daily inhalation dose for
adults on a mg/m2 basis). These effects were not seen
with a dose of 50 mg/kg (approximately 140 times the maximum recommended daily
inhalation dose for adults on a mg/m2 basis).
PregnancyTERATOGENIC EFFECTS: Pregnancy Category CAlbuterol sulfatePregnancy Category C
Albuterol sulfate has been shown to be teratogenic in mice. A
study in CD-1 mice given albuterol sulfate subcutaneously showed cleft palate
formation in 5 of 111 (4.5%) fetuses at 0.25 mg/kg (less than the maximum
recommended daily inhalation dose for adults on a mg/m2
basis) and in 10 of 108 (9.3%) fetuses at 2.5 mg/kg (approximately equal to the
maximum recommended daily inhalation dose for adults on a mg/m2 basis). The drug did not induce cleft palate formation when
administered subcutaneously at a dose of 0.025 mg/kg (less than the maximum
recommended daily inhalation dose for adults on a mg/m2
basis). Cleft palate formation also occurred in 22 of 72 (30.5%) fetuses from
females treated subcutaneously with 2.5 mg/kg isoproterenol (positive
control).
A reproduction study in Stride rabbits revealed cranioschisis in 7 of 19
(37%) fetuses when albuterol was administered orally at a dose of 50 mg/kg
(approximately 55 times the maximum recommended daily inhalation dose for adults
on a mg/m2 basis).
A study in which pregnant rats were dosed with radiolabeled albuterol sulfate
demonstrated that drug-related material is transferred from the maternal
circulation to the fetus.
During worldwide marketing experience, various congenital anomalies,
including cleft palate and limb defects, have been reported in the offspring of
patients being treated with albuterol. Some of the mothers were taking multiple
medications during their pregnancies. Because no consistent pattern of defects
can be discerned, a relationship between albuterol use and congenital anomalies
has not been established.
Ipratropium bromidePregnancy Category B
Reproduction studies in CD-1 mice, Sprague-Dawley rats and New
Zealand rabbits demonstrated no evidence of teratogenicity at oral doses up to
10, 100, and 125 mg/kg, respectively (approximately 15, 270, and 680 times the
maximum recommended daily inhalation dose for adults on a mg/m2 basis). Reproduction studies in rats and rabbits demonstrated
no evidence of teratogenicity at inhalation doses up to 1.5 and 1.8 mg/kg,
respectively (approximately 4 and 10 times the maximum recommended daily
inhalation dose for adults on a mg/m2 basis). There are
no adequate and well-controlled studies of the use of Ipratropium Bromide and
Albuterol Sulfate, albuterol sulfate, or ipratropium bromide in pregnant women.
Ipratropium Bromide and Albuterol Sulfate should be used during pregnancy only
if the potential benefit justifies the potential risk to the fetus.
Labor and Delivery
Oral albuterol sulfate has been shown to delay preterm labor in
some reports. Because of the potential of albuterol to interfere with uterine
contractility, use of Ipratropium Bromide and Albuterol Sulfate during labor
should be restricted to those patients in whom the benefits clearly outweigh the
risks.
Nursing Mothers
It is not known whether the components of Ipratropium Bromide and
Albuterol Sulfate are excreted in human milk. Although lipidinsoluble quaternary
bases pass into breast milk, it is unlikely that ipratropium bromide would reach
the infant to an important extent, especially when taken as a nebulized
solution. Because of the potential for tumorigenicity shown for albuterol
sulfate in some animals, a decision should be made whether to discontinue
nursing or discontinue Ipratropium Bromide and Albuterol Sulfate, taking into
account the importance of the drug to the mother.
Pediatric Use
The safety and effectiveness of Ipratropium Bromide and Albuterol
Sulfate in patients below 18 years of age have not been established.
Geriatric Use
Of the total number of subjects in clinical studies of
Ipratropium Bromide and Albuterol Sulfate, 62 percent were 65 and over, while 19
percent were 75 and over. No overall differences in safety or effectiveness were
observed between these subjects and younger subjects, and other reported
clinical experience has not identified differences in responses between the
elderly and younger patients, but greater sensitivity of some older individuals
cannot be ruled out.