The main function and efficacy of Formoterol is to treat breathing difficulties caused by asthma, chronic obstructive pulmonary disease, emphysema, and other diseases. Formoterol usually produces bronchodilation effects within minutes of inhalation, while also reducing airway resistance. The peak effect can be achieved within two hours. Since Formoterol is a long-acting preparation, it is also suitable for nocturnal asthma attacks. Precautions for the use of Formoterol:
1. For patients with bronchial asthma who require regular use of β agonists, anti-inflammatory drugs should be used regularly at the same time. Even if symptoms improve after using Formoterol powder inhaler, patients should continue to use anti-inflammatory drugs.
2. Formoterol can affect blood sugar metabolism and may cause hypokalemia. Therefore, blood sugar should be monitored during medication, especially for patients with diabetes. Patients with acute bronchial asthma attacks and arrhythmia also need to be cautious.
3. Formoterol is metabolized by the liver, so caution should be exercised when using it in patients with liver dysfunction. Patients with severe aortic valve stenosis, hypertension, or other severe cardiovascular diseases should also be cautious when using it.
4. During the medication process, special attention should be paid to avoid getting the powder into the eyes, which may cause or worsen narrow-angle glaucoma, eye pain or discomfort, transient blurred vision, halos, or colored images.
