Description

Technical Parameters

Product Introduction

### 1. Drug Overview and Pharmacological Mechanism

**Hepius Salbutamol 20mg Tablets** is an oral bronchodilator, the main ingredient of which is salbutamol, which is a short-acting β2 adrenergic receptor agonist (SABA). It selectively activates β2 receptors on airway smooth muscle, increases intracellular cyclic adenosine monophosphate (cAMP) levels, thereby relaxing bronchial smooth muscle, relieving airway spasm, and improving respiratory function.

Compared with other dosage forms (such as inhalers), 20mg tablets are suitable for patients who need long-term or high-dose control of the disease, especially for those who cannot use inhalation devices (such as children or elderly patients).

### 2. Indications and Clinical Applications

1. **Bronchial Asthma**

Used for the relief of acute attacks and the maintenance treatment of chronic asthma, especially for patients with moderate to severe asthma who need to combine other drugs (such as inhaled steroids) to control the disease.

2. **Chronic obstructive pulmonary disease (COPD)**

Relieve dyspnea, cough and excessive mucus secretion symptoms in COPD patients, and improve exercise tolerance.

3. **Other respiratory diseases**

Including acute and chronic bronchitis, bronchiectasis and emphysema.

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### 3. Dosage form characteristics and usage and dosage

#### 1. Dosage form advantages

- **High dose design**: The 20mg specification is suitable for patients who need a higher single dose, reducing the inconvenience of frequent medication.

- **Oral convenience**: Compared with inhalers, tablets are more easily accepted by children, elderly patients or those with limited hand movement.

- **Strong stability**: Tablets can be stored for a long time at room temperature (2-30°C), protected from light and moisture, and no special refrigeration is required.

#### 2. Recommended dose

- **Adults**: The initial dose is 4-8mg, 3-4 times a day; it can be gradually adjusted to a maximum of 32mg per day according to the condition (close monitoring of side effects is required).

- **Children (over 6 years old)**: Calculated by body weight, usually 0.1-0.2mg/kg, 3 times a day, the maximum dose does not exceed 24mg/day.

### 4. Advantages of the drug

1. **Fast onset**

It takes effect within 30 minutes after oral administration, reaches the peak in 1-2 hours, and lasts for 4-6 hours, which is suitable for acute symptom relief.

2. **Wide applicability**

It covers a variety of respiratory diseases and has clear efficacy for patients with asthma during pregnancy (inhalers are safer) and patients with specific chronic diseases.

3. **Combination therapy compatibility**

It can be used in combination with inhaled steroids, long-acting β2 agonists (LABA) or theophylline drugs to enhance the overall efficacy.

4. **Flexible dose adjustment**

The 20mg high dose design makes it easier for doctors to adjust the treatment plan according to the individual needs of patients.

### 5. Precautions and contraindications

#### 1. Contraindications

- People who are allergic to salbutamol or excipients.

- Patients with uncontrolled hyperthyroidism and severe cardiovascular diseases (such as arrhythmias, myocardial ischemia).

- Pregnant women in late pregnancy or with placental abnormalities (such as placenta previa).

#### 2. Warnings for use

- **Cardiovascular risks**: May cause tachycardia and palpitations. Patients with hypertension or coronary heart disease should be cautious.

- **Metabolic effects**: Long-term use may cause hypokalemia or increased blood sugar. Diabetic patients need to be monitored regularly.

- **Risk of dependence**: Excessive dependence may mask airway inflammation and requires anti-inflammatory treatment.

### 6. Potential side effects

- **Common reactions**: Tremor (especially hands), headache, palpitations, muscle cramps, etc., which are mostly dose-related.

- **Rare but serious reactions**: Arrhythmias, allergic reactions (such as rash, dyspnea), lactic acidosis (need to stop the drug immediately and seek medical attention).

### 7. Drug Interactions

- **β-blockers (such as propranolol)**: May antagonize the bronchodilator effect of salbutamol.

- **Diuretics and steroids**: Increase the risk of hypokalemia, and electrolytes need to be monitored.

- **Theophylline drugs**: Synergistic effects may enhance side effects (such as tachycardia).

### 8. Use in special populations

- **Pregnant women and lactating women**: Use with caution in early pregnancy and contraindicated in late pregnancy; during lactation, the potential effects of the drug on the baby need to be evaluated.

- **Children and the elderly**: The dose needs to be adjusted according to body weight or liver and kidney function, and cardiovascular reactions need to be closely monitored.

### 9. Storage and handling

- Store in the original packaging away from light and avoid high temperatures or humid environments (such as bathrooms).

- Expired or unused drugs should be recycled through pharmacies to avoid environmental pollution.

### Summary

**Hepius Salbutamol 20mg Tablets** has become an important choice for patients with moderate to severe respiratory diseases due to its high-dose design, oral convenience and wide indications. However, its use requires strict compliance with doctor's orders, weighing the efficacy and potential risks, and regular follow-up to optimize the treatment plan. For more detailed information, please refer to the drug instructions or consult professional medical personnel.