AA-Theo LA

Theophylline Anhydrous Sustained-Release Tablets: Bronchodilator

AA-Theo LA contains the active ingredient Theophylline, a xanthine derivative classified as a Bronchodilator. While approved for human use, this medication is commonly prescribed by veterinarians on an extra-label basis for dogs and cats. Theophylline works by relaxing the smooth muscles in the airways, leading to the widening of the bronchial passages, which makes breathing easier. The sustained-release formulation is designed to maintain consistent drug levels in the bloodstream over an extended period.

Key Information

• Active Ingredient: Theophylline Anhydrous.

• Approved Species (Original Licensing): Human.

• Common Veterinary Species: Dog and Cat (used extra-label).

• Uses: Bronchodilator (primarily for chronic respiratory conditions like asthma and chronic bronchitis).

• Form: Sustained-release tablet (available in 100 mg, 200 mg, and 300 mg).

• Route of Administration: Oral.

Prescription Required

Theophylline Anhydrous Sustained-Release Tablets are a prescription-only medication. A valid prescription from a licensed veterinarian is required for purchase. Veterinary supervision is essential because Theophylline has a narrow therapeutic index, meaning the dose needed for effectiveness is close to the dose that can cause toxicity. Side effects can include serious cardiac and central nervous system issues. Blood monitoring is often required to ensure drug levels are safe and effective.