Please note that from September 25 - 30, 2020 our telephone service provider will be performing system upgrades. This may result in temporary disruptions to our call center or poor connection to our agents. We are still here to serve you and handle your orders without delays. If you have trouble getting through to an agent, please feel free to leave a voicemail, send us an email, or contact us through our Live Chat service. Thank you for your support.

Covid-19 Service Update

At North Drugstore, the health and safety of our customers and staff is our highest priority. Due to the worldwide Covid-19 pandemic affecting us all, there have been some changes within our industry in general, and in our company specifically, that we want to make our customers aware of.

Call Center

Our current call center hours of operation are 6:00 am – 9:00 pm, seven days a week. If you are experiencing increased hold times or are calling outside of these hours, please leave us a message or send us an email and we will get back to you as soon as we can. Due to increased demand on telephone networks worldwide, you may experience some intermittent connection problems. If this happens our agents will call you back.


We are currently seeing delays in our regular shipping times. Our normal shipping time averages 1 - 2 weeks. Shipments may now take an additional 2 – 4 weeks or more to arrive, depending on the source country of your order. Shipments from the United Kingdom and Canada are generally quicker than from other countries.

Please note that these times are averages and individual shipping times will vary. We highly recommend that you place your order at least 2 – 4 weeks or more ahead of your normal reorder time to avoid running out of your medication.

These are industry-wide delays and are mainly occurring due to disruptions in local postal delivery in the countries where our customers live. They are temporary, and we thank the shipping and delivery personnel who are working hard for all of us during this global crisis.

Please Note: We are now resuming our normal 30-Day Shipping Guarantee. We will provide updates as the situation changes.

Our Commitment

If you have any questions about any changes in our service please do not hesitate to contact us. Our staff are working tirelessly to ensure the timely fulfillment and delivery of all orders. The health of our customers and staff is our highest priority and we remain committed to providing service at the highest level.

We thank you for your support in these challenging times.

Management and Staff
North Drugstore

Buy Uniphyl from Canadian & International Pharmacies

Low Price Guarantee

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30 Day Returns

Uniphyl (Theophylline ER)

and/or alternatives
Brand Name Options

Low Price Guarantee

Delivery Guarantee

30 Day Returns

Shipping is $10.00 per order. All prices are in USD. Average shipping time is 2 weeks.
Full information about Uniphyl

General Information on Uniphyl

Uniphyl is prescribed to patients suffering from respiratory problems such as asthma, bronchitis and emphysema. The key ingredient in the composition of Uniphyl is Theophylline, which belongs to a class of drugs known as bronchodilators. Each Uniphyl 400 mg or Uniphyl 600 mg oral sustained release tablet contains, beside the above mentioned strength of theophylline, cetostearyl alcohol, hydroxyethyl cellulose, magnesium stearate, povidone, and talc as inactive components. Those experiencing severe mucous formation, wheezing, cough and shortness of breath can buy Uniphyl online after getting a doctor’s prescription for the same.

Theophylline primarily acts on the constricted smooth bronchial muscles to relax them and increase the passage of air to the lungs. It also aids the stimulation of cardiac muscles and the central nervous system (CNS). Uniphyl has certain non-bronchodilator prophylactic effects as well.

Side Effects of Uniphyl

Every chemical that is ingested triggers a series of biochemical reactions in the body. Besides having the desired effects, most drugs often cause a variety of minor and major side effects.

Some of the minor effects that may be experienced after the use of Uniphyl are:

  • Irritability
  • Headache
  • Diarrhea
  • Frequent urination
  • Restlessness and sleeping trouble
  • Nausea
  • Fainting
  • Mild seizures
  • Shaking
  • Chest pain
  • Increased pulse

There may be other side effects of Uniphyl that are more severe in nature. The doctor needs to be consulted if any mild side effects persist or worsen during treatment. Beside these, there may be some serious adverse effects of Uniphyl. Medical attention in these cases is a must:

  • Severe abdominal pain
  • Vomiting, especially if it is bloody or dark
  • Confusion
  • Convulsions
  • Continuing seizures

A Uniphyl overdose may prove to be lethal. If any of the following symptoms manifest, contact a doctor immediately:

  • Blurred vision
  • Severe confusion
  • Decreased and/or difficult urination
  • Muscle cramps, pain in the limbs, shoulders etc.
  • Bloody or tarry vomit
  • Serious breathing trouble
  • Sweating

The above lists do not include all the possible side effects of Uniphyl. Discussing all the possible side effects in detail with your doctor before you buy Uniphyl is recommended.

Dosage of Uniphyl

Complying with the instructions given by your doctor is compulsory for attaining the best results. Theophylline comes in the form of tablets, extended release tablets, capsules, extended release capsules, syrup, and solution. The usual Uniphyl tablet strength is Uniphyl 400 mg or Uniphyl 600 mg. The drug is meant to be swallowed whole as this ensures controlled and even absorption of theophylline in the body.

Adults, teenagers, and children (weighing over 45 kg) can take theophylline in the form of tablets up to Uniphyl 600 mg broken into smaller doses every 8 hours a day. Teens weighing less than 45 kg are generally prescribed Uniphyl 12-14mg per kg of weight per day, not exceeding 20mg per kg of weight or Uniphyl 600 mg. For adults, infants, and children below 12 years of age, a doctor’s advice is mandatory regarding the use of Uniphyl.

It is best not to decide on the dosage of this prescription drug without any prior medical consultation.


Uniphyl interacts with a number of medications. Your doctor must be notified about any medicines (both prescribed and over the counter) you are taking or whether you smoke, drink, or have a history of past or present ailments before you buy Uniphyl.

* All trademarks and registered trademarks are the property of their respective owners.

IMPORTANT DISCLAIMER: All medical content is supplied by a third party company who is independent from this web site. As such, this web site can not guarantee the reliability, accuracy, and /or medical efficacy of the information provided. In all circumstances, you should seek the advice of a health professional pertaining to drug, treatment and/or medical condition advice. Note that not all products are shipped by our contracted Canadian pharmacy. This website contracts with dispensaries around the world that ship products directly to our customers. Some of the jurisdiction include but are not limited to United Kingdom, Europe, Turkey, India, Canada, Vanuatu, Mauritius, and USA. The items within your order may be shipped from any one of these jurisdiction depending on the availability and cost of the products at the time you place your order. The products are sourced from these countries as well as others. Please note that the product appearance may vary from actual product received depending on availability.