Respiratory Support Tablets for Dogs and Cats Product Description Theophylline Anhydrous Extended-Release Tablets 400 mg are veterinarian-prescribed bronchodilator medications for dogs and cats, formulated to aid breathing in ongoing respiratory conditions. The sustained-release formulation allows for gradual delivery of theophylline throughout the day, helping relax airway muscles and support diaphragm activity. This strength is provided as a white, round, scored tablet intended for oral administration under veterinary supervision. Benefits Bronchodilatory effect: Helps ease breathing by relaxing the smooth muscles of the airways in both dogs and cats, allowing improved airflow. Sustained-release formula: Controlled-release tablet design that enables once-daily dosing over a 24-hour period in suitable patients, as directed by a veterinarian. Diaphragm support: May increase diaphragmatic muscle contractility, helping support breathing effort in pets with chronic respiratory disease. Scored tablet: A scored 400 mg tablet can be split when directed, and should not be chewed or crushed. Variants 400 mg Ingredients Active Ingredients Theophylline anhydrous 400 mg Inactive Ingredients Cetostearyl alcohol, hydroxyethyl cellulose, magnesium stearate, povidone, and talc. Source How to Use Dosage & Administration Instructions Veterinary prescription: This medication should only be used under veterinary supervision with individualized dosing based on patient response and serum levels. Once-daily dosing: These extended-release tablets are typically administered once per day, either in the morning or evening, as directed. Consistent administration: Give the medication consistently either with or without food, but follow the same routine each time to maintain steady absorption. Serum monitoring: Blood theophylline levels should be monitored regularly to adjust dosage and avoid toxicity or subtherapeutic effects. Disclaimer: This dosage information is provided by the manufacturer. Always consult your veterinarian before administering or adjusting any supplement for your pet. Additional Information Precautions Underlying conditions: Use carefully in animals with a history of seizures, irregular heart rhythms, or active ulcers in the digestive tract. Drug interactions: Evaluate all current medications before starting or discontinuing therapy, as many drugs can influence how theophylline is metabolized. Dose adjustments: Dose modifications may be necessary in pets with liver conditions, heart disease, elevated body temperature, or in very young or older animals, along with more frequent monitoring. Toxicity signs: Stop the medication and contact a veterinarian promptly if vomiting, a fast heartbeat, tremors, agitation, or other neurologic signs occur. Possible Side Effects Gastrointestinal upset: Nausea, vomiting, and abdominal discomfort may occur, especially when therapy is initiated or doses are increased. CNS effects: Stimulant effects may cause headaches, insomnia, restlessness, nervousness, and increased alertness in some patients occasionally. Cardiovascular effects: Palpitations, elevated heart rate, or abnormal rhythms may develop, especially at higher blood concentration levels. Severe reactions: Toxicity can result in persistent vomiting, seizures, or dangerous arrhythmias requiring immediate veterinary intervention Storage Information Room temperature: To maintain the quality of medications store them at a steady room temperature between 20°C and 25°C. Safe storage: To reduce the risk of toxicity and unintentional intake, keep items out of children's and animals' reach. Light protection: To avoid exposure-related deterioration, store tablets in a well-sealed, light-resistant container. Shipping & Return We offer ground, express, priority, and international delivery; see our shipping policy for details. For return instructions or product concerns, please refer to our detailed refund policy. Prescription items are NON-RETURNABLE and NON-REFUNDABLE. Frequently Asked Questions Q1: What is Theophylline used for in pets? Ans: Theophylline is commonly used to support the management of long-term respiratory issues by relaxing the muscles of the airways and promoting better airflow. It helps pets breathe more comfortably in conditions resembling asthma or chronic bronchitis and may also improve diaphragm performance, contributing to more efficient breathing. Q2: How often should Theophylline tablets be given? Ans: This long-lasting medication is typically taken once a day either in the morning or evening, based on your vet's recommendation. Taking it at the same time every day, whether with food or on an empty stomach, helps keep the medication levels steady in your body, which is key for effectively managing symptoms. Q3: Can Theophylline tablets be crushed or split? Ans: Avoid crushing or chewing the tablets, as doing this may lead to the medication being released too quickly and escalate the risk of adverse effects. If required, a scored tablet can be divided but only under a veterinarian’s guidance to ensure accurate dosing. Q4: What side effects should pet owners watch for? Ans: Some pets may experience mild effects like nausea, vomiting, restlessness, or difficulty sleeping. Serious reactions, like palpatation, seizures, or repeated vomiting, could point to toxicity and need immediate veterinary attention. Keep a close eye on your pet, especially when adjusting the dose or if you notice any changes in their overall condition. Q5: Does Theophylline interact with other medications? Ans: Theophylline is known to interact with numerous medications that can alter how it is metabolized, which can result in changes in its concentration in the bloodstream. For this reason, it is important to inform your veterinarian regarding other medications, supplements, or dietary changes to help prevent decreased effectiveness or an increased risk of side effects.
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