Covid-19 Service Update

At Pharmacy Rx World, 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
Pharmacy Rx World
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Diamox Sequels (Acetazolamide ER) and/or alternatives

Brand Name Options
  1. Buy Diamox Sequels

    Diamox Sequels 250mg

    Marketed as Diamox SR in European Union

    Manufactured by: Goldshield Pharmaceuticals Ltd

    Product of United Kingdom. Shipped from United Kingdom

    RxPrescription Required

    * You may take 2 Diamox SR caps in place of 500mg Diamox Sequel as both are once daily formulations.
Generic OptionsWhat is a Generic?
  1. Buy Diamox Sequels

    Acetazolamide ER 500mg

    Generic Alternative of Diamox Sequels 500mg

    Manufactured by: A US FDA approved Generic Manufacturer

    Product of United States

    RxPrescription Required
    Currently Unavailable.

Please note that the country, manufacturer, and/or shipping country may vary depending on availability. All trademarks and registered trademarks are the property of their respective owners.

General Information On Diamox Sequels

A carbonic anhydrase inhibitor, Diamox Sequels is used for the treatment of glaucoma. This medicine works by slowing the activity of carbonic anhydrase, a protein found in red blood cells. In addition to glaucoma, this medicine is also used to treat, as well as prevent AMS (acute mountain sickness). The generic name of this drug is Acetazolamide.

Side Effects for Diamox Sequels

Like other drugs, this medicine may cause certain side effects. Common and less serious side effects of this medicine include: mild nausea, vomiting, headache, drowsiness, or dizziness, constipation, diarrhea, metallic taste in your mouth, mental/mood changes (such as irritation, confusion, or nervousness), tinnitus (a condition characterized by ringing in the ears), or increased sensitivity to sunlight. Generally, the above symptoms appear only at the start of the treatment. Once the patient’s body gets used to Diamox Sequels, the aforementioned symptoms subside and eventually dissipate on their own. Continue to use the drug as prescribed by your doctor even with the advent of one or more of the above side effects. Also, contact your doctor in case the aforementioned symptoms continue to occur even after a few days or if the side effects become a cause for concern.

Less common but serious side effects of Diamox Sequels include: sore throat, fever, chills, unusual bruising or bleeding, joint pain, pain in your lower back, or tingling/numbness in your fingers or toes. You must contact your doctor immediately if you notice any of the aforementioned symptoms.

This drug is unlikely to trigger a serious allergic reaction. With that said, you must immediately stop taking this medication and call your doctor if you experience: hives, swelling of your body parts (especially your face, lips, or tongue), or breathing difficulties.

The above list does not cover all the side effects of Diamox Sequels. To know more about this subject, read the patient information leaflet that you receive when you buy Diamox Sequels. This small booklet contains useful information such as the complete list of side effects, precautions, and other necessary information.


You should not buy Diamox Sequels if you are allergic to Sulphonamides, Sulphonamide derivatives such as Acetazolamide, or other ingredients that are present in this medicine. Make it a point to tell your doctor your medical history, especially if you have diabetes, adrenal gland problems, liver or kidney disease, cardiovascular disease, low levels of potassium or sodium, lung disease, or hormonal disease.

Pregnant and breastfeeding women should use this medicine only if their doctor advises them to do so. Avoid driving and other activities that require you to stay alert if this medicine causes drowsiness, dizziness, or vision problems such as short-sightedness.

Diamox Sequels Dosage

The recommended dosage is Diamox Sequels 500mg twice a day. It is absolutely critical that you take this medicine as directed by your doctor. You should store this medicine at room temperature away from heat and moisture.


Certain drugs such as aspirin, salicylates, salsalate, and diflunisal may decrease the efficacy of Acetazolamide or increase some of its side effects. In addition to these few, many other drugs may also interact with Diamox Sequels. Before starting treatment, inform your doctor about all the medicines that you are using, including herbal supplements.

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.