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Uniphyllin (Theophylline)

Also Known as Uniphyl

Prescription requiredOnly Available By Prescription
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What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.


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Uniphyllin is an asthma and lung disease treatment medication available by prescription and most used to prevent wheezing and shortness of breath for asthma and COPD sufferers. Theophylline is a xanthine class drug that relaxes the muscles around the airway and causes them to open up more for easier breathing. It will also decrease the lungs’ response to irritants and may be used in conjunction with maintenance inhalers when used for asthma. Buy Theophylline from Canada and Canpharm and get the best price on it.

What is Asthma?

Asthma is a lung and pulmonary health disorder where inflammation causes the airways into the lungs to become constricted and limiting the airflow into the lungs for breathing. Symptoms can include shortness of breath, wheezing, and cough. The disorder is manageable, and most sufferers will not have to go for medical attention when having an asthma attack, but for some it may be required based on the severity of their asthma.

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Standard Theophylline dosage is to take tablet 1 or 2x daily but dosage and frequency may vary based on age and results from lab tests. Always take your medication exactly as indicated in your prescription.


The active ingredient in Uniphyllin is Theophylline.


Let your doctor know of any history of stomach or intestinal ulcers, seizures, thyroid disease, heart problems, liver disease, or high blood pressure (hypotension) before starting on Uniphyllin.

In the event of fever after starting on this medication you should stop use immediately and meet with your doctor again.

Older adults may be more susceptible to Uniphyllin side effects, and irregular heartbeat and sleeping difficulties in particular.

Women who are pregnant or plan to become pregnant should only use Uniphyllin with their doctor's approval, and with the understanding may be more of a risk during the last 3 months of a woman's pregnancy.

Be aware of medication expiry date.


Negative drug interactions may occur between Uniphyllin and other Rx medications, including cimetidine, disulfiram, fluvoxamine, interferon, mexiletine, propranolol, rifampin, carbamazepine, phenytoin, ticlopidine, and viloxazine. Let your doctor know of all medications you are currently taking before getting a prescription and proceeding to buy Uniphyllin online.

Side Effects

Side effects from using Uniphyllin may occur, and some users may experience nausea, vomiting, stomach or abdominal pain, headache, sleeping difficulties, diarrhea, irritability, restlessness, or increased urination. If side effects are experienced, you may want to stop use and meet with a doctor again to discuss COPD and asthma treatment medication alternatives.

Remember, these are not exhaustive lists, and it's important to consult with a healthcare professional for personalized advice and guidance. If you prefer, you may contact the U.S. Food and Drug Administration (FDA) directly. Visit or call 1-800-FDA-1088

Frequently Asked Questions about Theophylline

What is theophylline?

Theophylline is a xanthine class drug that relaxes the muscles around the airway, making breathing easier.

Is theophylline a bronchodilator?

No, theophylline is not a bronchodilator. It works as a muscle relaxant rather than dilating bronchial airways.

Can theophylline be crushed?

No, theophylline tablets should not be crushed or chewed. They should be swallowed whole with water.

Can theophylline be stopped immediately?

Stopping theophylline should only be done under the guidance of your doctor and if deemed safe for your health condition.

Can you buy theophylline over the counter?

No, theophylline is a prescription medication, and you will need a prescription to obtain it from any pharmacy.

IMPORTANT NOTE: The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.