Theophylline, Extended Release

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You save: 55%

This product requires a prescription


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  • Mail-order

Product Details

About Theophylline

Theophylline is a widely used, effective bronchodilator that can be prescribed by your veterinarian. This medication treats a variety of pulmonary disorders and may also be used to treat heart disease in animals. This medication works to open and relax airways in a variety of ways. Constricted airways and mucus build up are two of the main culprits behind difficult breathing.
Theophylline aids in relaxing the muscles surrounding the airway so that breathing becomes less difficult. It also increases the movement of cilia in the airway, which helps clear out mucus. This medication is also helpful in strengthening the diaphragm to aid your pet in combating such constrictions in the future. It also contains caffeine, which acts to stimulate your pet's central nervous system.

Key Benefits of Theophylline 

  • Helps relax the respiratory system and clear mucus build up
  • Helps strengthen the diaphragm
  • Effective and affordable

Who's Theophylline For? 

  • A bronchodilator, theophylline facilitates the flow of air in your pet's lungs at times when it may be compromised
  • Relaxes the muscles in the lungs and chests
  • Treats wheezing and shortness of breath

Theophylline Ingredients


Side Effects and Warnings

Side effects when using theophylline include:
  • Vomiting
  • Central nervous system excitement
  • Fever
  • Rash
  • Palpitations

Side effects usually subside with dosage adjustments and/or continued therapy.

Theophylline should not be used in patients allergic to this class of medication.

Do not use in pregnant or lactating animals.

Theophylline should be used with caution in patients with severe heart disease, liver or kidney disease, hyperthyroidism, hypertension or stomach ulcers.

Theophylline Directions

Theophylline is administered orally as a tablet, capsule, or syrup. It usually is taken every 6, 8, 12, or 24 hours. The tablets must be swallowed whole, and must be taken on an empty stomach. Follow the dosage size prescribed by your veterinarian.

Read the Medication Guide for Theophylline

PetPlus is not a pharmacy. PetPlus partners with National Association of Boards of Pharmacy (NABP) accredited pharmacies such as CVS, Walgreens, RiteAid and PetCareRx to fulfill your prescriptions. Prescription orders dispensed through online mail-order will be directed to PetCareRx, and those through in-store pickup will be dispensed at the local Caremark network pharmacy chosen by the customer.

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