Please do not hesitate to contact us with questions:
What is extended release theophylline?
Extended-release theophylline is a medication for heart disorders and asthma in pets and is especially used in cats. It works by relaxing the airways and by inhibiting the release of inflammation-causing mast cells.
What else should you know about theophylline:
Theophylline can cause nausea, vomiting, headache, and insomnia. Signs of toxicity should be reported to your pet's veterinarian right away and they include persistent vomiting, cardiac arrhythmias, and seizures. Theophylline is a medication that will likely require blood level monitoring so it is crucial for you to keep all appointments with your pet's veterinarian.