Theovent-SR Tablet 300 mg contains Theophylline 300 mg, a long-acting bronchodilator widely used in the management of chronic respiratory disorders such as asthma, chronic obstructive pulmonary disease (COPD), and chronic bronchitis. Its sustained-release formulation ensures a steady and prolonged therapeutic effect, helping patients maintain better airflow and reduce the frequency of respiratory symptoms over an extended period.

Theophylline is a xanthine derivative that relaxes the smooth muscles of the airways, improving breathing efficiency and overall lung function. Theovent-SR 300 mg is ideal for patients requiring long-term maintenance therapy, providing convenience and consistent symptom control.

রেজিস্টার্ড চিকিৎসকের পরামর্শ অনুযায়ী ঔষধ সেবন করুন

Composition

• Theophylline 300 mg

Mechanism of Action

Theophylline works through several complementary mechanisms:

1. Bronchodilation – Relaxes smooth muscles in the airways, widening bronchial passages to improve airflow.

2. Anti-inflammatory effect – Reduces airway inflammation by inhibiting the release of certain inflammatory mediators.

3. Diaphragm stimulation – Strengthens diaphragm contractions, supporting more effective lung ventilation.

4. Central respiratory stimulation – Enhances the responsiveness of the respiratory centers in the brain to carbon dioxide, aiding in better breathing patterns.

The sustained-release design allows for a gradual release of the drug into the bloodstream, maintaining effective levels for 12–24 hours and reducing the need for frequent dosing.

Indications

Theovent-SR Tablet 300 mg is indicated for:

• Long-term management of chronic asthma

• Chronic obstructive pulmonary disease (COPD)

• Chronic bronchitis with airway obstruction

• Prevention of nocturnal or exercise-induced asthma symptoms

It is intended for maintenance therapy under the guidance of a healthcare professional and should be part of a comprehensive respiratory care plan.

Dosage and Administration

• The dose of Theovent-SR 300 mg is determined by age, weight, and clinical condition, as advised by a physician.

• Usually taken once or twice daily, depending on the prescribed regimen.

• Swallow the tablet whole with water; do not crush or chew.

• Take at the same time each day for optimal therapeutic effect.

• Regular monitoring of serum Theophylline levels is recommended to ensure safety and effectiveness.

Benefits

• Provides long-acting bronchodilation and symptom relief

• Improves airflow and oxygenation

• Reduces the frequency and severity of asthma or COPD attacks

• Enhances exercise tolerance and quality of life

• Convenient once or twice-daily dosing improves adherence

Precautions

• Monitor blood Theophylline levels to avoid toxicity.

• Use cautiously in patients with heart disease, liver or kidney impairment.

• Avoid concomitant use with drugs that may interact with Theophylline, such as certain antibiotics and anticonvulsants.

• Not recommended during pregnancy or breastfeeding unless prescribed by a physician.

• Inform the doctor about a history of seizures, ulcers, or heart rhythm disorders.

  রেজিস্টার্ড চিকিৎসকের পরামর্শ অনুযায়ী ঔষধ সেবন করুন

Possible Side Effects

Common side effects may include:

• Nausea and vomiting

• Headache

• Insomnia or restlessness

• Palpitations

• Mild gastrointestinal discomfort

Serious side effects requiring immediate attention:

• Severe irregular heartbeat

• Seizures

• Chest pain or difficulty breathing

Storage

• Store below 30°C

• Keep in a cool, dry place away from light

• Keep the container tightly closed

• Keep out of reach of children

Theovent-SR Tablet 300 mg is a reliable, sustained-release bronchodilator designed for the long-term management of asthma, COPD, and other chronic respiratory conditions under proper medical supervision.