Theophylline SR

Theophylline SR is a medication used to treat asthma and chronic obstructive pulmonary disease (COPD). It helps to relax and open airways in the lungs, making breathing easier. The "SR" stands for sustained release, meaning the medication is released slowly over time to maintain steady levels in the blood. Common side effects include nausea, headache, and insomnia. Regular blood tests are needed to monitor drug levels.