The correct name of Procaterol Oral Solution is Procaterol Hydrochloride Oral Solution, and the instruction dosage is 50μg per time for adults, 25μg per time for pediatrics over 6 years old, taken orally once a day at bedtime or once a day before bedtime in the morning and once a day before bedtime in the evening; and 1.25μg/kg per time for breastfeeding toddlers under 6 years old, taken once a day at bedtime in the morning and once a day before bedtime or once a day before bedtime in the morning, midday, and once a day before bedtime in the evening. In addition, patients can increase or decrease the dosage appropriately according to the age and symptoms under the guidance of the doctor. Procaterol Hydrochloride Oral Solution is mainly used for the relief of symptoms of dyspnea caused by bronchial asthma, chronic or acute bronchitis, wheezing bronchitis and other obstructive disorders of the respiratory tract. Serious adverse reactions that can be caused by Procaterol Hydrochloride Oral Solution include hypokalemia, shock, and anaphylactic-like symptoms; other adverse reactions include palpitations, frequent pulsations, fever, muscle tremors, headache, vertigo, insomnia, cramps, nausea, vomiting, thirst, stomach upset, rash, hepatic dysfunction, fatigue, nasal congestion, tinnitus, and other symptoms. In addition, Procaterol Hydrochloride Oral Solution and its drug components are prohibited for patients who are allergic to, the simultaneous application of catecholamines is prohibited, hyperthyroidism, hypertension, heart disease, diabetes mellitus, pregnancy or suspicion of pregnancy should be used with caution in women, preterm infants and neonates with the use of the drug is not yet certain. If you need to use Procaterol Hydrochloride Oral Solution, please consult a professional doctor, follow the doctor’s instructions for standardized treatment, not blindly use the drug.