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Generic Equivalent of Theodur

TypeDrug NameDosage 
Theophylline SR 12 HR100 mg
Theophylline SR 12 HR200 mg
Theophylline SR 12 HR300 mg


Buy generic Theodur 300 mg from Canada
* The product images are for reference only. Generic equivalents may also be supplied by alternate manufacturers.

Do You Sell Theodur for Pets?



Yes veterinarians often prescribe Theodur for treatment of heart failure, pulmonary edema, asthma or COPD.

How And Where To Buy Theodur Online?


You can buy Theodur online through our Canadian International Pharmacy at huge savings. We offer RX and OTC medications online with a valid prescription from your doctor. At Canadian Pharmacy World, your health is our priority. You can place the order online, by mail, by fax or toll-free over the telephone at 1866-485-7979.

Are There Alternative Names For The Brand And Generic Theodur?


The generic equivalent of Theodur is Theophylline sustained release 12 HR also called Apo-Theo LA manufactured in Canada by Apotex Inc. The brand name Theodur is not available at this time.

What Is Dosages And Forms Theodur Available In?


This medication comes in three dosage forms of 100 mg, 200 mg and 300 mg as sustained-release tablets in the packaging of 200 tablets.

What Is Theodur Used For?


This medication is used for the treatment of breathing problems such as bronchitis, asthma, and emphysema. It helps to open up the air passages in the lungs and prevents wheezing as well as shortness of breath.

What Are The Possible Side Effects Of Theodur?


Some of the common side effects of Theodur include unexplained digestive problems, or stomach problems, nausea, vomiting, heartburn, loss of appetite, stomach pains, diarrhea, black stools or blood in stools, unexplained changes general well-being such as mood changes including nervousness, restlessness, irritability, difficulty sleeping, confusion, memory problems, dizziness, unusual tiredness or weakness, trembling or twitching of muscles, convulsion (seizures). Some other side effects include hearing changes (ringing or buzzing in ears), vision changes (Seeing flashes of light), unusual fast breathing, unusually fast or pounding heartbeat, fever, flushing, extreme flushing, extreme thirst or unusual decrease or increase in urination. These are not all the possible side effects of Theodur. In case of any unexpected effect, contact your healthcare professional.

Are there any Precautions and Drug interactions for Theodur?


Theodur is prescribed for your breathing problems and should not be used for any other condition unless told otherwise by your doctor. Do not take any other medicine without the advice of your doctor or pharmacist as some medicines may affect the way Theodur works for you. Contact your healthcare professional in case you develop diarrhea, chest infection, fever or flu.

Do not take Theodur if you:

• Are allergic to theophylline or any other ingredients in the medication

• Are allergic to other xanthine derivatives

• Have active peptic ulcers

• Have coronary artery disease or other heart problems

Before taking Theodur always talk to your healthcare professional in case you:

• Have liver or kidney disease

• Are over 55 years of age, especially males and with chronic lung disease

• Have or had a cardiac failure from any cause or other heart diseases

• Have thyroid disease

• Have active influenza or other viral disease or after influenza vaccination

• Have abnormal heartbeats or arrhythmia

• Are taking any other medications or supplements

• Have or had any allergies in the past to food or drugs

• Develop diarrhea, chest infection, fever, or flu (influenza

• Are pregnant or plan to become pregnant

• Are breastfeeding

• Start or stop smoking

• Smoke or have smoked regularly in the last two years

• Eat large amounts of charcoal broiled foods

• Wish to go on a high protein, low carbohydrate diet or low protein, high carbohydrate diet

Drug interactions


You should always tell your health care professional about any medications that you have been taking or are going to take including prescription and non-prescription drugs, vitamins and herbal supplements. Drugs that may interact with Theodur include:

• Cimetidine (an antacid)

• Propranolol (a drug used to treat hypertension

• Allopurinol (a drug used to treat gout

• Macrolide antibiotics (erythromycin) used to treat bacterial infections

• Oral contraceptives

• Alkalinizing agents (drugs used to treat acidosis or kidney failure

• Influenza vaccine

• Phenytoin, barbiturates, carbamazepine (drugs used to treat seizures

• Isoproterenol (a drug used to treat slow heart rate

• Rifampin (an antibiotic used to treat tuberculosis)

• Smoking (tobacco)

• Acidifying agents (agents used to neutralize alkaline body fluid)

• Digitalis glycoside (used to treat abnormal heart rhythms)

• Thiazides (“water pills”) used to treat high blood pressure and other heart diseases

• Nephrotoxic drugs (drugs which affect kidney such as ibuprofen, gentamicin)

• Lithium (used to treat mania and bipolar disorder)

• Sympathomimetic amines (used to treat heart attack and low blood pressure)

• Coumarin anticoagulants (such as warfarin used to prevent coagulation of blood)

• Probenecid (used to treat gout)

• Pyrazolone derivatives (used to treat pain) such as Dipyrone

• Ketamine (used as an anesthetic)

Theodur Storage and Safety Information


This medication should be stored at a temperature of 15°C to 30°C, away from moisture and heat. The medicine should be kept out of reach and sight of children.

The content on this page has been supplied to canadianpharmacyworld.com by an independent third party contracted to provide information for our website. canadianpharmacyworld.com relies on these third parties to create and maintain this information and cannot guarantee the medical efficacy, accuracy or reliability of the information that has been provided to us. If you require any advice or information about the drugs on this page, a medical condition or treatment advice, you should always speak to a health professional. Please note that not all products, including any referenced in this page, are shipped by our affiliated Canadian Pharmacy. We affiliate with other dispensaries that ship product to our customers from the following jurisdictions: Canada, Singapore, New Zealand, Turkey, Mauritius, India, and United Kingdom. The items in your order maybe shipped from any of the above jurisdictions. The products are sourced from various countries as well as those listed above. Rest assured, we only affiliate with our authorized dispensaries that procure product through reliable sources.

Prescriptions dispensed from Canada are dispensed by: Candrug Pharmacy, ID#18985 604-543-8711. Pharmacy Manager: Sanaa Abdelati. Pharmacy Address: Unit #202A, 8322-130th Street, Surrey, British Columbia, Canada V3W 8J9.
This pharmacy is duly licensed in the province of British Columbia, Canada by the College of Pharmacists of BC. If you have any questions or concerns you can contact the college at: 200-1765 West 8th Ave Vancouver, BC V6J 5C6 Canada.
In addition to dispensing from our affiliated Canadian dispensing pharmacy, we also dispense your medications from international fulfillment centers that are approved by the regulatory bodies from their respective countries. Canadianpharmacyworld.com dispenses medications from fulfillment centers around the world including and not limited to Canada, Singapore, New Zealand, Turkey, Mauritius, India, and United Kingdom.