Quibron-T/SR Tablet 300mg

About Quibron-T/SR Tablet 300mg

Quibron-T/SR Tablet 300mg Uses

• Long term control and prevention of asthma symptoms like wheezing and breathlessness
• Management of chronic obstructive pulmonary disease (COPD) to ease airflow
• Reducing the frequency of nighttime asthma attacks in poorly controlled disease
• Add on therapy when inhaled bronchodilators alone fail to control symptoms

Quibron-T/SR Tablet 300mg Benefits

• Relaxes the muscles around the airways so breathing becomes easier
• Sustained release formula keeps drug levels steady for up to twelve hours
• Helps lower the number of asthma or COPD flare ups over time
• Twice daily dosing is more convenient than short acting theophylline

What Experts Say

Pulmonologists in Pakistan often prescribe Quibron-T/SR as an add on option when inhaled bronchodilators alone do not fully control asthma or COPD symptoms. Its slow release design keeps theophylline levels steady through the day and night, which supports easier breathing without frequent dosing and helps patients sleep through the night without sudden tightness in the chest.

Doctors stress that theophylline has a narrow safety margin, so blood levels need periodic checking, especially in smokers, older adults, and people with liver or heart disease. Missing this monitoring raises the risk of nausea, rapid heartbeat, or more serious toxicity, so routine lab visits remain an important part of long term treatment for most patients.

Specialists also advise patients to avoid sudden changes in caffeine intake and to report new medicines, since many common drugs alter how the body clears theophylline. Consistent timing with meals and regular follow up visits help keep therapy both effective and safe.

Drug Class

• Xanthine derivative
• Bronchodilator
• Methylxanthine class respiratory agent

Quibron-T/SR Tablet 300mg formula

• Theophylline

Available forms

• Tablet

How to use Quibron-T/SR Tablet 300mg?

• Take exactly as prescribed by your doctor, usually every twelve hours
• Swallow the tablet whole with a glass of water, do not crush or chew it
• Take at the same times each day, ideally with or shortly after food
• Do not stop the medicine suddenly without consulting your doctor

Drug Interactions

Quibron-T/SR Tablet 300mg can interact with other medicines, tell your doctor everything you take.

• Ciprofloxacin and other quinolones: Can raise theophylline levels and increase toxicity risk.
• Cimetidine: May slow theophylline clearance and raise blood levels.
• Phenytoin and carbamazepine: Can lower theophylline levels and reduce effectiveness.
• Beta blockers: May reduce the bronchodilator effect of theophylline.
• Caffeine: Combined use can increase nervousness and heart related side effects.

Risks and warnings

• Narrow Safety Margin: Blood theophylline levels need regular monitoring to avoid toxicity.
• Heart Conditions: Use with caution in patients with arrhythmia or heart disease.
• Liver Disease: Reduced liver function can raise theophylline levels and increase side effects.
• Seizure Disorders: May lower the seizure threshold in susceptible patients.
• Pregnancy and Breastfeeding: Use only if clearly advised by your doctor.

Quibron-T/SR Tablet 300mg Side Effects

Quibron-T/SR Tablet 300mg is generally well tolerated when taken at the correct dose, though mild effects can occur as the body adjusts.

• Nausea or upset stomach
• Headache
• Trouble sleeping
• Restlessness or nervousness

Contact your doctor or seek immediate help if you notice any of these more serious effects.

• Rapid or irregular heartbeat
• Persistent vomiting
• Seizures
• Severe agitation or confusion

Storage Conditions

• Store below 30°C in a cool, dry place
• Keep away from direct sunlight and moisture
• Keep out of reach of children