Respro SR Tablet 300mg

About Respro SR Tablet 300mg

Respro SR Tablet 300mg Uses

• Treatment of asthma
• Treatment of chronic obstructive pulmonary disease (COPD)
• Treatment of chronic bronchitis
• Prevention of bronchospasm and wheezing
• Long term control of persistent asthma symptoms
• Management of nighttime breathlessness in asthma and COPD

Respro SR Tablet 300mg Benefits

• Sustained release action maintains steady drug levels for twelve hours
• Twice daily dosing improves treatment adherence
• Helps reduce the frequency of asthma attacks
• Improves control of nighttime and early morning symptoms
• Can be combined with inhaled bronchodilators for added control
• Supports easier breathing during chronic lung disease flare ups

What Experts Say

Theophylline is a methylxanthine bronchodilator. It works by relaxing the smooth muscles around the airways and reducing inflammation, which makes breathing easier in asthma and COPD. It also has a mild effect on the diaphragm muscle, helping improve breathing strength in chronic lung disease.

The sustained release form releases the drug slowly over twelve hours, keeping blood levels steady and reducing the highs and lows seen with regular tablets. This steady level helps control nighttime symptoms, a common problem in asthma and COPD. Because the safe dose range is narrow, doctors often check blood levels during treatment.

Experts caution that many common medicines and habits change how the body processes theophylline. Smoking speeds up clearance, while certain antibiotics slow it down, raising the risk of side effects. Regular monitoring and dose adjustment help keep treatment both effective and safe over the long term.

Drug Class

• Xanthine Bronchodilator
• Methylxanthine

Respro SR Tablet 300mg formula

• Theophylline

Available forms

• Tablet

How to use Respro SR Tablet 300mg?

• Swallow the tablet whole with water, do not crush or chew
• Take at evenly spaced times to maintain steady blood levels
• Usual adult maintenance dose is 200mg to 400mg every twelve hours as directed
• Do not take a double dose if one is missed
• Follow the exact dose and schedule prescribed by your doctor
• Inform your doctor if you smoke or have recently changed smoking habits

Drug Interactions

• Ciprofloxacin and Other Quinolone Antibiotics: Raise theophylline levels and increase toxicity risk
• Erythromycin and Clarithromycin: Macrolide antibiotics that raise blood theophylline levels
• Cimetidine: Reduces clearance and raises theophylline levels
• Phenytoin and Carbamazepine: Lower theophylline levels and reduce effectiveness
• Rifampin: Lowers theophylline levels and reduces effectiveness
• Caffeine and Xanthine Containing Products: May add to stimulant type side effects

Risks and warnings

• Narrow Safety Range: Blood levels above the safe range can cause serious toxicity
• Heart Disease: Use with caution in patients with existing cardiac conditions
• Liver Impairment: Dose adjustment needed since the drug is processed by the liver
• Seizure Disorder: May lower the seizure threshold in susceptible patients
• Peptic Ulcer Disease: May worsen stomach irritation
• Smoking: Smokers clear theophylline faster and may need dose adjustment
• Pregnancy and Breastfeeding: Use only under medical supervision
• Elderly Patients: Increased sensitivity often requires a lower dose

Respro SR Tablet 300mg Side Effects

• Nausea
• Vomiting
• Headache
• Difficulty sleeping
• Restlessness
• Fast or irregular heartbeat
• Stomach upset or heartburn
• Irritability
• Increased urination
• Seizures in cases of toxicity
• Severe irregular heart rhythm in cases of toxicity
• Confusion or severe vomiting suggesting high drug levels

Storage Conditions

• Store below 30°C in a cool, dry place away from direct sunlight
• Keep the strip in its original packaging until use
• Do not use if the tablet appears damaged or discolored
• Keep out of reach of children