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Theophylline ER

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Starts $0.86 $0.62 per tablet
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100 mg Tab (per tablet)
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$0.62
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200 mg Tab (per tablet)
$1.11
$0.89
$0.80
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Product Info
How to Use
Ingredients
Customer Reviews
Q&A
Product Info
What is Theophylline?

Theophylline Extended Release is a bronchodilator used to open air passages in the lungs. Theophylline requires a prescription from your veterinarian, and is sold per tablet.

For:

Cats and dogs

Benefits:
  • Easy to administer
How it Works:

Theophylline opens air passages in the lungs by relaxing muscles in the lungs and chest.

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.

Brand Name:

Theolair (UCB Pharma), Theo-Dur (Key), Uniphyl (Purdue Pharma)

Generic Name:

Theophylline E.R.

What is the most important information I should know about theophylline:

Always check the medicine when it is refilled to make sure you are getting the correct brand and type as prescribed by your veterinarian. Ask the pharmacist if you have any questions about the medication you received from the pharmacy. There are many medications that can interact with theophylline. Tell your veterinarian about all the prescription and over the counter medications you give your pet. These include vitamins, minerals, herbal products, and medications prescribed by other veterinarians. Theophylline is not FDA approved for use in veterinary medicine; however, it is a commonly accepted practice for veterinarians to use this medication in dogs and cats. Theophylline is available by prescription in 100mg and 200mg, Extended Release (ER), tablets. The usual dose in dogs is 4.5 to 6.8mg per pound every 12 hours. The usual dose in cats is 2mg per pound every 8 to 12 hours.

What is theophylline:

Theophylline is a bronchodilator which relaxes muscles in the lungs and chest. Theophylline is used in the treatment of heart failure, asthma, bronchitis, and pulmonary edema. Theophylline may also be used for purposes other than those listed in this medication guide.

What should I discuss with my veterinarian before giving theophylline:

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.

How should this medication be given:

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.

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 giving theophylline:

Do not give this medication if your pet has severe heart disease, liver or kidney disease, hyperthyroid disease, high blood pressure, or stomach ulcers.

What are the possible side effects of theophylline:

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:

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.

Where can I get more information:

Your pharmacist has additional information about theophylline written for health professionals that you may read.

Call your veterinarian for medical advice about any side effects to your pet. You may report side effects to the FDA at 1-800-FDA-1088.

How to Use
Directions:
  • Theophylline E.R. (extended release) is a prescription bronchodilator which is used to open air passages in the lungs in dogs and cats. By relaxing the smooth muscle of the lung it makes it easier for the pet to breathe.
  • Theophylline E.R. is not FDA approved for use in veterinary medicine; however, it is a commonly accepted practice for veterinarians to prescribe this medication for dogs and cats.
  • Theophylline E.R. is used in the treatment of heart failure, pulmonary edema, bronchial asthma, and chronic obstructive pulmonary disease.
Tip:

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:
Dogs:
Weight
Dosage
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:
Weight
Dosage
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:
Do not use!
Storage:

Store Theophylline E.R. at room temperature away from moisture, heat and light.

Ingredients
Theophylline 100 mg Tab:
Active Ingredients (per tablet)
Amount
Anhydrous
100 mg
Theophylline 200 mg Tab:
Active Ingredients (per tablet)
Amount
Anhydrous
200 mg
Customer Reviews
Theophylline ER is rated 4.518518518518518 out of 5 by 27.
Rated 4 out of 5 by from Was working great! Have had my cat on this and now we can't get it anymore. Trying to find something comparable but looks like the compound pharmacy will have to try to come up with something. Very disappointed, my vet also.
Date published: 2016-02-24
Rated 5 out of 5 by from Our vet says he is doing great on the med. Better than a year ago. So two thumbs up.
Date published: 2015-12-16
Rated 3 out of 5 by from I can't tell My Yorkie has trouble getting the right dose. Plus,, it make him really nervous, extremely nervous. I wish I could find an alternative.
Date published: 2014-09-20
Rated 5 out of 5 by from Highly Recommend Our Max is 10 years old, and has heart disease. He has been on a multitude of drugs, but this was added about 4 months ago, and has helped with his breathing tremendously! No side effects, only positive results.
Date published: 2014-08-05
Rated 5 out of 5 by from HONK FREE FINALLY THIS IS A GREAT DRUG. MY DOG ROXY IS ABOUT 10 YEARS OLD AND HER TRACHEA HAD COLLAPSED HER VET PRESCRIBED HER THIS AND SHES BEEN ON IT EVER SINCE WITH NO PROBLEMS AND NO SIDE EFFECTS. I'M VERY THANKFUL FOR THE MEDS AND FOR THIS SITE FOR GIVING ME THE BEST PRICE ON IT!!
Date published: 2014-07-29
Rated 3 out of 5 by from It helps, are the side effects worth it? The medication helped my dogs breathing, but all she did all night long was pace and pant. She kept both my husband and I up all night long. The side effects are far too much to handle for everyone.
Date published: 2014-03-18
Rated 4 out of 5 by from Very Helpful Drug My dog Patches is a 10 yr old Aussie Cattledog with COPD. She weighs approx. 58 lbs which is a little on the heavy side but her health prevents her from getting all the exercise she needs and food is the best thing in her life at this point. She still coughs but not as much and without the Theophylline, she couldn't exist. The cough is also not as deep or harsh. She is on 300 mg per day.
Date published: 2014-03-14
Rated 4 out of 5 by from cat with asthma The product has helped with the asthma although he still coughs but not nearly as much.
Date published: 2013-11-23
  • 2016-08-29T06:07CST
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Q&A

Do you carry Theophyllin ER100 or 200 mg

Asked by: Cody
We carry both 100 and 200mg tablets.
Answered by: paulpharmacistintern
Date published: 2016-08-10

Why doesn't this med come in smaller doses? My dog would only need 1/8 of this pill daily.

I currently get the liquid med from a compounding pharmacy n this would be a lot cheaper. My dog is only 3.5 pds n takes his liquid med 2x a day. What r your thoughts? Ty!
Asked by: Sheila
Sheila they have the dosage for the product wrong. The dosage they quote on the page is for regular theophylline, but they are selling the extended-release. Ask your vet if you dog could take the extended-release version of the med. My vet prescribed the 200mg pill for my 16 pound cat, and I thought he was trying to kill him.
Answered by: Fred
Date published: 2015-06-14

How is theophyline normally dosed for a 12 lb asthmatic cat?

I am seeing a variety of ranges for typical veterinarian prescribed doses, but my Vet has suggested 100mg every 12 hours for my 12 lbs cat. This seems awfully high to me from all the literature I have read. Should I question this dose and seek clarification.
Asked by: Tony
I had the same problem. The literature you read, including what they have here, is NOT for the extended relief tablets. The 2 mg per pound is for non-extended relief tablets.
Answered by: Fred
Date published: 2015-06-14

can I get theophylline 100mg tablets in non-extended form?

Asked by: Katie
We only carry theophylline extended release tablets.
Answered by: Stephanie Duesler, Pharm. D, MBA
Date published: 2015-01-14

Can Theophyline be administered safely with amoxcillian to a 12 pound dog???

Asked by: Susn
There is no drug interaction between Amoxicillin and Theophylline.
Answered by: Lisa M
Date published: 2014-11-10

Why can't this pill be crushed? Does cutting the tablet have the same negative effect?

Asked by: Theo Feline
This is an extended release Theophylline tablet. Cutting or crushing the tablet destroys the release mechanism. Do not cut or crush the tablet unless instructed by your veterinarian.
Answered by: Lisa M
Date published: 2014-08-08

My cat is taking 1/4 tab of Theophyline 2X per day for asthma. Is this Theophyline ER?

Asked by: Peg
Yes this is the Theopylline ER.
Answered by: Pharmacist
Date published: 2014-06-03

Can one give theophylline and tessagon together

Asked by: Buddy
There is no known drug interactions between these two medications. Consult your veterinarian if these medications are appropriate for your pet.
Answered by: Cheryl-Pharmacist
Date published: 2014-04-24
  • 2016-08-29T06:05CST
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