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theophylline er

Theophylline Extended Release is a bronchodilator used to open air passages in the lungs.

For: Cats and Dogs 

How it works: Theophylline opens air passages in the lungs by relaxing muscles in the lungs and chest.

Dosage & Administration: Give theophylline exactly as directed by your veterinarian. Do not give the medication in larger amounts, or for a longer period of time than recommended by your veterinarian. Follow the directions on the prescription label. Allow plenty of water for the pet to drink. Theophylline ER tablets should not be crushed, chewed, or broken unless the veterinarian tells you to. The tablet should be swallowed whole so that the medication is released slowly. Breaking the tablet may cause too much of the medication to be released at one time. Store theophylline at room temperature, away from moisture, heat, and light.

Directions:

Tips: Theophylline E.R. tablets should not be crushed, chewed, or broken unless told to do so by your veterinarian. The tablet should be swallowed whole so that the medication is released slowly. Breaking the tablet may cause too much of the medication to be released at one time. Give theophylline on an empty stomach, 1 hour before or 2 hours after a meal.

Dosage:
Pet Weight Dosage
Dogs: All weights The usual dose for dogs is 4.5 to 6.8mg per pound of pet’s body weight by mouth every 12 hours. Allow plenty of water for the pet to drink
Cats/Kittens: All weights The usual dose for cats is 2mg per pound of pet’s body weight by mouth every 8-12 hours. Allow plenty of water for the pet to drink
Horses: X X
Storage: Store Theophylline E.R. at room temperature away from moisture, heat and light.

What happens if I miss a dose: Give the missed dose as soon as you remember. If it is almost time for your next dose, skip the dose that was missed and give only the next regularly scheduled dose, as directed. Do not give a double dose of this medication unless otherwise directed by your veterinarian.

What happens if I overdose the pet: Call your veterinarian or veterinary emergency room. Symptoms of overdose may include nausea, vomiting, insomnia, tremors, restlessness, uneven heartbeats, and seizures.

What should I avoid while using Theophylline E.R.: Do not give this medication if your pet has severe heart disease, liver or kidney disease, hyperthyroid disease, high blood pressure, or stomach ulcers.

Possible side effects of Theophylline E.R.: If any of the following serious side effects occur, stop giving theophylline and seek emergency veterinary medical attention; an allergic reaction (difficulty breathing, swelling of the lips, tongue, face, or hives). Stop giving theophylline and call your veterinarian at once if any of the following side effects occur; seizures; severe nausea and vomiting, and restlessness; coughing up blood or vomit that looks like coffee grounds; urinating more than normal. Other less serious side effects may also occur. Talk to your veterinarian if your pet experiences mild nausea, loss of appetite, weight loss; restlessness, or insomnia; headache, or dizziness. Side effects other than those listed here may also occur. Talk to your veterinarian about any side effect that seems unusual or that is especially bothersome.

What other drugs will affect Theophylline E.R.: Tell your veterinarian if your pet is using cimetidine (Tagamet); erythromycin (E-Mycin, Ery-Tab); propranolol (Inderal). Drugs other than those listed here may also interact with theophylline. Talk to your veterinarian or pharmacist before giving any prescription or over the counter medications including vitamins, minerals and herbal supplements.

What should I discuss with my veterinarian before using Theophylline E.R.: Tell your veterinarian if your pet is allergic to theophylline, or if your pet has stomach ulcers; epilepsy; heart rhythm problems; congestive heart failure; fluid in the lungs; hypothyroid; fever; liver, or kidney disease. Tell your veterinarian if your pet is pregnant or lactating, or if you plan on breeding your pet.

Cautions: The medication is best given on an empty stomach. Theophylline should not be given to pregnant or nursing animals. Theophylline E.R. tablets are scored and may be broken in half. These tablets should not be chewed or crushed.