Ipratropium Bromide and Albuterol Sulfate

INDICATIONS AND USAGE Ipratropium Bromide and Albuterol Sulfate Inhalation Solution is indicated for the treatment of bronchospasm associated with COPD in patients requiring more than one bronchodilator.

DOSAGE AND ADMINISTRATION The recommended dose of ipratropium bromide and albuterol sulfate inhalation solution is one 3 mL vial administered 4 times per day via nebulization with up to 2 additional 3 mL doses allowed per day, if needed. Safety and efficacy of additional doses or increased frequency of administration of ipratropium bromide and albuterol sulfate inhalation solution beyond these guidelines has not been studied and the safety and efficacy of extra doses of albuterol sulfate or ipratropium bromide in addition to the recommended doses of ipratropium bromide and albuterol sulfate inhalation solution have not been studied. The use of ipratropium bromide and albuterol sulfate inhalation solution can be continued as medically indicated to control recurring bouts of bronchospasm. If a previously effective regimen fails to provide the usual relief, medical advice should be sought immediately, as this is often a sign of worsening COPD, which would require reassessment of therapy. A Pari-LC-Plus TM nebulizer (with face mask or mouthpiece) connected to a PRONEB TM compressor was used to deliver ipratropium bromide and albuterol sulfate inhalation solution to each patient in one U.S. clinical study. The safety and efficacy of ipratropium bromide and albuterol sulfate inhalation solution delivered by other nebulizers and compressors have not been established. Ipratropium bromide and albuterol sulfate inhalation solution should be administered via jet nebulizer connected to an air compressor with an adequate air flow, equipped with a mouthpiece or suitable face mask.

CONTRAINDICATIONS Ipratropium Bromide and Albuterol Sulfate Inhalation Solution is contraindicated in patients with a history of hypersensitivity to any of its components, or to atropine and its derivatives.

ADVERSE REACTIONS Adverse reaction information concerning Ipratropium Bromide and Albuterol Sulfate Inhalation Solution was derived from the 12-week controlled clinical trial. ADVERSE EVENTS OCCURRING IN ≥ 1% OF ≥ 1 TREATMENT GROUP(S) AND WHERE THE COMBINATION TREATMENT SHOWED THE HIGHEST PERCENTAGE Summary of Heart Protection Study Results Body System COSTART Term Albuterol n (%) Ipratropium n (%) Ipratropium Bromide and Albuterol Sulfate Inhalation Solution n (%) NUMBER OF PATIENTS 761 754 765 N (%) Patients with AE 327 (43.0) 329 (43.6) 367 (48.0) BODY AS A WHOLE Pain 8 (1.1) 4 (0.5) 10 (1.3) Pain chest 11 (1.4) 14 (1.9) 20 (2.6) DIGESTIVE Diarrhea 5 (0.7) 9 (1.2) 14 (1.8) Dyspepsia 7 (0.9) 8 (1.1) 10 (1.3) Nausea 7 (0.9) 6 (0.8) 11 (1.4) MUSCULO-SKELETAL Cramps leg 8 (1.1) 6 (0.8) 11 (1.4) RESPIRATORY Bronchitis 11 (1.4) 13 (1.7) 13 (1.7) Lung Disease 36 (4.7) 34 (4.5) 49 (6.4) Pharyngitis 27 (3.5) 27 (3.6) 34 (4.4) Pneumonia 7 (0.9) 8 (1.1) 10 (1.3) UROGENITAL Infection urinary tract 3 (0.4) 9 (1.2) 12 (1.6) Additional adverse reactions reported in more than 1% of patients treated with Ipratropium Bromide and Albuterol Sulfate Inhalation Solution included constipation and voice alterations. In the clinical trial, there was a 0.3% incidence of possible allergic-type reactions, including skin rash, pruritus, and urticaria. Additional information derived from the published literature on the use of albuterol sulfate and ipratropium bromide singly or in combination includes precipitation or worsening of narrow-angle glaucoma, acute eye pain, blurred vision, mydriasis, paradoxical bronchospasm, wheezing, exacerbation of COPD symptoms, drowsiness, aching, flushing, upper respiratory tract infection, palpitations, taste perversion, elevated heart rate, sinusitis, back pain, sore throat, and metabolic acidosis. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

Drug Interactions Anticholinergic 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 Inhalation Solution with other drugs having anticholinergic properties. β-adrenergic agents Caution is advised in the co-administration of Ipratropium Bromide and Albuterol Sulfate Inhalation Solution and other sympathomimetic agents due to the increased risk of adverse cardiovascular effects. β-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 β 1 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 coadministration of β-agonist-containing drugs, such as Ipratropium Bromide and Albuterol Sulfate Inhalation Solution, with non-potassium sparing diuretics. Monoamine Oxidase Inhibitors or Tricyclic Antidepressants Ipratropium Bromide and Albuterol Sulfate Inhalation Solution 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.

Anticholinergic 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 Inhalation Solution with other drugs having anticholinergic properties.

β-adrenergic agents Caution is advised in the co-administration of Ipratropium Bromide and Albuterol Sulfate Inhalation Solution and other sympathomimetic agents due to the increased risk of adverse cardiovascular effects.

β-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 β 1 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 coadministration of β-agonist-containing drugs, such as Ipratropium Bromide and Albuterol Sulfate Inhalation Solution, with non-potassium sparing diuretics.

Monoamine Oxidase Inhibitors or Tricyclic Antidepressants Ipratropium Bromide and Albuterol Sulfate Inhalation Solution 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.

Mechanism of Action Albuterol sulfate The prime action of β-adrenergic drugs is to stimulate adenyl cyclase, the enzyme that catalyzes the formation of cyclic-3’,5’-adenosine monophosphate (cAMP) from adenosine triphosphate (ATP). The cAMP thus formed mediates the cellular responses. In vitro studies and in vivo pharmacologic studies have demonstrated that albuterol has a preferential effect on β 2 -adrenergic receptors compared with isoproterenol. While it is recognized that β 2 -adrenergic receptors are the predominant receptors in bronchial smooth muscle, recent data indicated that 10% to 50% of the β-receptors in the human heart may be β 2 -receptors. The precise function of these receptors, however, is not yet established. Albuterol has been shown in most controlled clinical trials to have more effect on the respiratory tract, in the form of bronchial smooth muscle relaxation, than isoproterenol at comparable doses while producing fewer cardiovascular effects. Controlled clinical studies and other clinical experience have shown that inhaled albuterol, like other β-adrenergic agonist drugs, can produce a significant cardiovascular effect in some patients. Ipratropium bromide Ipratropium bromide is an anticholinergic (parasympatholytic) agent, which blocks the muscarinic receptors of acetylcholine, and, based on animal studies, appears to inhibit vagally mediated reflexes by antagonizing the action of acetylcholine, the transmitter agent released from the vagus nerve. Anticholinergics prevent the increases in intracellular concentration of cyclic guanosine monophosphate (cGMP), resulting from the interaction of acetylcholine with the muscarinic receptors of bronchial smooth muscle. Ipratropium Bromide and Albuterol Sulfate Inhalation Solution Ipratropium Bromide and Albuterol Sulfate Inhalation Solution is expected to maximize the response to treatment in patients with chronic obstructive pulmonary disease (COPD) by reducing bronchospasm through two distinctly different mechanisms: sympathomimetic (albuterol sulfate) and anticholinergic / parasympatholytic (ipratropium bromide). Simultaneous administration of both an anticholinergic and a β 2 -sympathomimetic is designed to produce greater bronchodilation effects than when either drug is utilized alone at its recommended dosage.

Albuterol sulfate The prime action of β-adrenergic drugs is to stimulate adenyl cyclase, the enzyme that catalyzes the formation of cyclic-3’,5’-adenosine monophosphate (cAMP) from adenosine triphosphate (ATP). The cAMP thus formed mediates the cellular responses. In vitro studies and in vivo pharmacologic studies have demonstrated that albuterol has a preferential effect on β 2 -adrenergic receptors compared with isoproterenol. While it is recognized that β 2 -adrenergic receptors are the predominant receptors in bronchial smooth muscle, recent data indicated that 10% to 50% of the β-receptors in the human heart may be β 2 -receptors. The precise function of these receptors, however, is not yet established. Albuterol has been shown in most controlled clinical trials to have more effect on the respiratory tract, in the form of bronchial smooth muscle relaxation, than isoproterenol at comparable doses while producing fewer cardiovascular effects. Controlled clinical studies and other clinical experience have shown that inhaled albuterol, like other β-adrenergic agonist drugs, can produce a significant cardiovascular effect in some patients.

Ipratropium bromide Ipratropium bromide is an anticholinergic (parasympatholytic) agent, which blocks the muscarinic receptors of acetylcholine, and, based on animal studies, appears to inhibit vagally mediated reflexes by antagonizing the action of acetylcholine, the transmitter agent released from the vagus nerve. Anticholinergics prevent the increases in intracellular concentration of cyclic guanosine monophosphate (cGMP), resulting from the interaction of acetylcholine with the muscarinic receptors of bronch …

DESCRIPTION The active components in ipratropium bromide and albuterol sulfate inhalation solution, USP are albuterol sulfate USP and ipratropium bromide USP. Albuterol sulfate, is a salt of racemic albuterol and a relatively selective β 2 -adrenergic bronchodilator chemically described as α 1 -[(tert-butylamino)methyl]-4-hydroxy-m-xylene-α, α’-diol sulfate (2:1) (salt). It has a molecular weight of 576.7 and the molecular formula is (C 13 H 21 NO 3 ) 2 •H 2 SO 4 . It is a white to practically white crystalline powder, freely soluble in water and slightly soluble in alcohol, chloroform and ether. The World Health Organization recommended name for albuterol base is salbutamol. Ipratropium bromide is an anticholinergic bronchodilator chemically described as 8-azoniabicyclo [3.2.1]-octane, 3-(3-hydroxy-1-oxo-2-phenylpropoxy)-8methyl-8-(1-methylethyl)-, bromide, monohydrate (endo, syn)-, (±)-; a synthetic quaternary ammonium compound, chemically related to atropine. It has a molecular weight of 430.4 and the molecular formula is C 20 H 30 BrNO 3 •H 2 O. It is a white to off white crystalline powder, soluble in water, freely soluble in methanol and slightly soluble in ethanol, insoluble in isopropyl alcohol, chloroform, methylene chloride and benzene. Each 3 mL vial of ipratropium bromide and albuterol sulfate inhalation solution, USP contains 3 mg (0.1%) of albuterol sulfate USP (equivalent to 2.5 mg (0.083%) of albuterol base) and 0.5 mg (0.017%) of ipratropium bromide USP in an isotonic, sterile, aqueous solution containing edetate disodium (a chelating agent), sodium chloride and hydrochloric acid to adjust to pH 4. Ipratropium bromide and albuterol sulfate inhalation solution, USP is a clear, colorless solution. Practically free from visible particles and foreign matters packed in natural BFS LDPE vial. It does not require dilution prior to administration by nebulization. For ipratropium bromide and albuterol sulfate inhalation solution, USP, like all other nebulized treatments, the amount delivered to the lungs will depend on patient factors, the jet nebulizer utilized, and compressor performance. Using the Pari-LC-PlusTM nebulizer (with face mask or mouthpiece) connected to a PRONEBTM compressor system, under in vitro conditions, the mean delivered dose from the mouth piece (% nominal dose) was approximately 46% of albuterol and 42% of ipratropium bromide at a mean flow rate of 3.6 L/min. The mean nebulization time was 15 minutes or less. Ipratropium bromide and albuterol sulfate inhalation solution, USP should be administered from jet nebulizers at adequate flow rates, via face masks or mouthpieces (see DOSAGE AND ADMINISTRATION ). Figure 1: Chemical structure of albuterol sulfate. Figure 2: Chemical structure of ipratropium bromide.

OVERDOSAGE The effects of overdosage with Ipratropium Bromide and Albuterol Sulfate Inhalation Solution are expected to be related primarily to albuterol sulfate, since ipratropium bromide is not well absorbed systemically after oral or aerosol administration. The expected symptoms with overdosage are those of excessive beta-adrenergic stimulation and/or occurrence or exaggeration of symptoms such as seizures, angina, hypertension or hypotension, tachycardia with rates up to 200 beats per minute, arrhythmia, nervousness, headache, tremor, dry mouth, palpitation, nausea, dizziness, fatigue, malaise, insomnia, and exaggeration of pharmacological effects listed in Error! Hyperlink reference not valid. . Hypokalemia may also occur. As with all sympathomimetic aerosol medications, cardiac arrest and even death may be associated with abuse of Ipratropium Bromide and Albuterol Sulfate Inhalation Solution. Treatment consists of discontinuation of Ipratropium Bromide and Albuterol Sulfate Inhalation Solution together with appropriate symptomatic therapy. The judicious use of a cardioselective beta-receptor blocker may be considered, bearing in mind that such medication can produce bronchospasm. There is insufficient evidence to determine if dialysis is beneficial for overdosage of Ipratropium Bromide and Albuterol Sulfate Inhalation Solution. The oral median lethal dose of albuterol sulfate in mice is greater than 2000 mg/kg (approximately 540 times the maximum recommended daily inhalation dose of Ipratropium Bromide and Albuterol Sulfate Inhalation Solution on a mg/m 2 basis). The subcutaneous median lethal dose of albuterol sulfate in mature rats and small young rats is approximately 450 and 2000 mg/kg, respectively (approximately 240 and 1100 times the maximum recommended daily inhalation dose of Ipratropium Bromide and Albuterol Sulfate Inhalation Solution on a mg/m 2 basis, respectively). The inhalation median lethal dose has not been determined in animals. The oral median lethal dose of ipratropium bromide in mice, rats and dogs is greater than 1000 mg/kg, approximately 1700 mg/kg and approximately 400 mg/kg, respectively (approximately 1400, 4600, and 3600 times the maximum recommended daily inhalation dose in adults on a mg/m 2 basis, respectively).

HOW SUPPLIED Ipratropium Bromide and Albuterol Sulfate Inhalation Solution USP, 0.5 mg/3 mg per 3 mL is a clear, colorless solution. Practically free from visible particles and foreign matters packed in natural BFS LDPE vial and is supplied as a 3 mL sterile solution for nebulization in sterile low-density polyethylene unit-dose vials. Supplied in cartons as listed below. NDC 65862-906-30 30 x 3 mL unit dose vials per carton (6 pouches, each containing 5 vials per foil pouch) NDC 65862-906-60 60 x 3 mL unit dose vials per carton (12 pouches, each containing 5 vials per foil pouch) NDC 65862-906-03 30 x 3 mL unit dose vials per carton (30 pouches, each containing 1 vial per foil pouch) PROTECT FROM LIGHT. Unit dose vials should remain stored in the protective foil pouch at all times. Once removed from the foil pouch, the individual vials should be used within one week. Discard if the solution is not colorless. Store between 2o to 25oC (36o to 77oF). All brands listed are the trademarks of their respective owners and are not trademarks of Luoxin Aurovitas Pharma (Chengdu) Co., Ltd. Ipratropium Bromide and Albuterol Sulfate Inhalation Solution USP, 0.5 mg/3 mg per 3 mL Patient’s Instructions for Use Read this patient information completely every time your prescription is filled as information may have changed. Keep these instructions with your medication as you may want to read them again. Ipratropium bromide and albuterol sulfate inhalation solution should only be used under the direction of a physician. Your physician and pharmacist have more information about ipratropium bromide and albuterol sulfate inhalation solution and the condition for which it has been prescribed. Contact them if you have additional questions. Storing your Medicine Store Ipratropium Bromide and Albuterol Sulfate Inhalation Solution between 2o and 25oC (36o and 77oF). Vials should be protected from light before use, therefore, keep unused vials in the foil pouch or carton. Do not use after the expiration (EXP) date printed on the carton. Dose Ipratropium bromide and albuterol sulfate inhalation solution is supplied as a single-dose, ready-to-use vial containing 3 mL of solution. No mixing or dilution is needed. Use one new vial for each nebulizer treatment. FOLLOW THESE DIRECTIONS FOR USE OF YOUR NEBULIZER/COMPRESSOR OR THE DIRECTIONS GIVEN BY YOUR HEALTHCARE PROVIDER. A TYPICAL EXAMPLE IS SHOWN BELOW. Instructions for Use 1. Remove one vial from the foil pouch. Place remaining vials back into pouch for storage. 2. Twist the cap completely off the vial and squeeze the contents into the nebulizer reservoir (Figure 1). 3. Connect the nebulizer to the mouthpiece or face mask (Figure 2). 4. Connect the nebulizer to the compressor. 5. Sit in a comfortable, upright position; place the mouthpiece in your mouth (Figure 3) or put on the face mask (Figure 4); and turn on the compressor. 6. Breathe as calmly, deeply and evenly as possible through your mouth until no more mist is formed in the nebulizer chamber (about 5 to 15 minutes). At this point, the treatment is finished. 7. Clean the nebulizer (see manufacturer’s instructions). Figure 1 Figure 2 Figure 3 and 4