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warnings
CARDIOVASCULAR EFFECTS Albuterol inhalation solution, like other beta-adrenergic agonists, can produce a clinically significant cardiovascular effect in some patients as measured by pulse rate, blood pressure, and/or symptoms. Although such effects are uncommon for albuterol inhalation solution at recommended doses, if they occur, the drug may need to be discontinued. In addition, beta-agonists have been reported to produce ECG changes, such as flattening of the T-wave, prolongation of the QTc interval, and ST segment depression. The clinical significance of these findings is unknown. Therefore, albuterol inhalation solution, like all other sympathomimetic amines, should be used with caution in patients with cardiovascular disorders, especially coronary insufficiency, cardiac arrhythmias, and hypertension.
warnings
IMMEDIATE HYPERSENSITIVITY REACTIONS Immediate hypersensitivity reactions may occur after administration of albuterol as demonstrated by rare cases of urticaria, angioedema, rash, bronchospasm, and oropharyngeal edema.
ADVERSE REACTIONS Clinical Trial Experience: Adverse events reported in >1% of patients receiving albuterol sulfate and more frequently than in patients receiving placebo in a four-week double-blind study are listed in the following table. Table 1: Adverse Events with an Incidence of >1% of Patients Receiving Albuterol Inhalation Solution and Greater than Placebo (expressed as % of treatment group) 1.25 mg (0.042%) Albuterol Inhalation Solution (n = 115) 0.63 mg (0.021%) Albuterol Inhalation Solution (n = 117) Placebo (n = 117) Asthma Exacerbation 13 11.1 8.5 Otitis Media 4.3 0.9 0 Allergic Reaction 0.9 3.4 1.7 Gastroenteritis 0.9 3.4 0.9 Cold Symptoms 0 3.4 1.7 Flu Syndrome 2.6 2.6 1.7 Lymphadenopathy 2.6 0.9 1.7 Skin/Appendage Infection 1.7 0 0 Urticaria 1.7 0.9 0 Migraine 0.9 1.7 0 Chest Pain 0.9 1.7 0 Bronchitis 0.9 1.7 0.9 Nausea 1.7 0.9 0.9 There was one case of ST segment depression in the 1.25 mg (0.042%) albuterol inhalation solution treatment group. No clinically relevant laboratory abnormalities related to albuterol inhalation solution administration were seen in this study. Postmarketing Experience: Metabolic acidosis has been reported after the use of albuterol inhalation solution. Because this reaction is reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate its frequency or establish a causal relationship to drug exposure.