Acetazolamide Information Disclaimer

Please note that we do not distribute or sell Acetazolamide. The content provided on this webpage is intended solely for informational and educational purposes. It should not be construed as medical advice, diagnosis, or treatment recommendation. Always consult a qualified healthcare professional for personalised medical advice and treatment options.

Treatment options

Acetazolamide - welzo
Acetazolamide - welzo


Acetazolamide - welzo
Acetazolamide - welzo
Sale price £50.00
In stock.

**Important information: Welzo does not offer controlled substances or all prescription items on the website. This...

**Important information: Welzo does not offer controlled substances or all prescription items on the website. This page should only be regarded for informational purposes if this is a controlled substance or an item we do not offer for regulatory reasons.**

Acetazolamide is a medication used to treat symptoms of altitude sickness. Acetazolamide is a generic version of the branded treatment called Diamox. This medication is ideal for those who suffer nausea, headaches and dizziness.

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What is Acetazolamide?

Acetazolamide is a drug belonging to the carbonic anhydrase inhibitors class of drugs. It comes in both capsule and tablet forms and is prescribed for a variety of purposes but is largely used to relieve symptoms of altitude sickness. 

How does Acetazolamide work?

This drug inhibits the carbonic anhydrase enzyme, which breaks down the carbonic acid. Thus, more carbonic acid will accumulate in your blood, lowering the blood pH. Carbonic anhydrase enzyme causes the reabsorption of chloride, bicarbonate and sodium, and its inhibition will result in the excretion of these salts from the body. The loss of salts will also result in the loss of water from the body. The result will be a lower BP, lower intraocular and intracranial pressures etc.

Is Acetazolamide for me?

This medication has several uses and may be prescribed for the reasons below:

  • Glaucoma, in which the accumulation of fluid in the eye can result in the loss of vision
  • The symptoms of altitude sickness, e.g., breath shortness, stomach issues, fatigue, dizziness etc.
  • Oedema in which the excess fluids accumulate in the body, e.g., due to heart failure etc.
  • Seizures, e.g., during epilepsy etc. 

The product images shown may represent the range of products, or be for illustration purposes only and may not be an exact representation of the product.

Side Effects

All medications can cause potential side effects, below we have listed some potential side effects, however, these do not always occur.

The common side effects noted are;

  • Loss of appetite
  • Stomach issues
  • Vomiting

The following issues require emergency care;

  • Unusual Bruising or bleeding 
  • Seizures
  • Headache, drowsiness and confusing
  • Fever
  • Increased urination and thirst 
  • Tingling and numbness
  • Pain during urination or bloody urine.

There could be other side effects too. So, you need to keep a close eye and report them to the physician for immediate response.

Disclaimer: This website does not constitute as medical advice, you should also consult with a doctor before taking medication. If you experience any major reactions to any medication you are taking, you must seek immediate medical attention.


Next Day Delivery Guarantee

All orders placed before 14:00 on weekdays will be delivered the next working day. For the majority of the UK, medication will be dispatched by Royal Mail, Monday to Friday, if ordered before 14:00. Dispatches are sent using Royal Mail's Next-Day Tracked 24-Hour service. We will email you tracking information directly and you should receive your order the day after dispatch.

Our Discreet Packaging Promise

We know that many of our customers turn to us when they need personal medication, preferring to use our online service rather than shopping for the product face to face. That is why our delivery is always discreetly packaged in plain brown boxes or enveloped. You will not have to worry about any content descriptions, and the package will be for your eyes only!


Commonly Used Dosage Guidelines for Acetazolamide.

The recommended dosage depends upon the purpose of use.

For altitude sickness:

  • Treatment should be started 1-2 days before the expected ascent. The dosing should be adjusted to deliver 500-1000mg daily in divided doses. For emergency situations, a higher dose of 1000mg is recommended.

For glaucoma:

  • The recommended dose is 500mg twice daily. So, you need to take two tablets in the morning and two in the evening. The dose, however, needs to be adjusted according to the response

Disclaimer: This website does not provide medical advice. No information listed on this website is intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of your physician or other qualified health care provider with any questions you may have regarding a medical condition or treatment before undergoing a new health care regimen, and never disregard professional medical advice or delay in seeking it because of something you have read on this website.

Product reviews

Please note the information below is intended for general knowledge, please read the patient information leaflet and/or the information provided by a healthcare professional for more specific guidance. This information should not substitute medical advice.

Can I get Acetazolamide on the NHS?

Whether or not you can get Acetazolamide on the NHS is dependent on your local guidelines and eligibility status. It is best to contact your local GP service if you are unsure of whether you can get Acetazolamide from the NHS.

Can you get Acetazolamide over the counter?

No, you can’t get Acetazolamide over the counter without a prescription or consultation. Acetazolamide is a regulated medication so all purchases need to have a prescription and/or suitable consultation form completed.

Can I buy Acetazolamide online even if I have never taken it before?

A prescribing pharmacist will need to review your consultation form before the medication can be dispatched.

Is Acetazolamide safe?

If you have been prescribed Acetazolamide then it is at the discretion of the prescriber.

However, all medications can potentially have adverse effects and should be taken exactly as prescribed. If you experience any side effects when taking Acetazolamide then you should contact a doctor immediately.

Are there any foods that should be avoided when taking Acetazolamide?

We recommend you read the patient information leaflet for this product thoroughly before taking the treatment. This is essential to understanding any interactions that can occur and to take the medication safely.

Can I buy Acetazolamide from Boots?

It is generally possible to purchase medication, including Acetazolamide, from UK pharmacies like Boots. However, I recommend checking the Boots website or contacting Boots directly for the most current and accurate information. Remember to consult with a healthcare professional before starting any new medication.

Can I buy Acetazolamide from Superdrug?

If you would like to buy Acetazolamide, you will need to check availability on the Superdrug website.

Can I buy Acetazolamide from Amazon?

Amazon does not sell medication such as Acetazolamide, as they are not a pharmacy service provider. Always check with Amazon to see what they sell.

How long does Acetazolamide take to work?

The time it takes for a Acetazolamide to work can vary greatly depending on several factors, such as the strength, the individual's age, weight, and overall health, as well as any potential interactions with other medications or substances. Generally, the effects of Acetazolamide may be noticeable within the time frame outlined by the prescribing pharmacist. It is important to follow the prescribed dosage and instructions provided by your healthcare professional, and to consult them if you have any concerns or questions about the medication's efficacy or possible side effects.

How effective is Acetazolamide?

The effectiveness of Acetazolamide can vary significantly depending on various factors, such as the dosage, the condition being treated, the individual's age, weight, and overall health, as well as the presence of any other medications or substances that might interact with it. While some medications may be highly effective for certain individuals and conditions, others might experience a lesser degree of benefit or may require adjustments to the dosage or additional treatments to achieve the desired results.

What are the risks of taking Acetazolamide?

At Welzo, we are dedicated to providing our customers with accurate and comprehensive information about medications. We believe that understanding the potential risks and side effects associated with a medication is essential for making informed decisions about your health. This guide outlines some general considerations for assessing the risks of medication and includes references to the National Health Service (NHS) for further information.

  1. Read the Patient Information Leaflet (PIL): Every medication comes with a Patient Information Leaflet, which provides essential details about the drug, its uses, and potential side effects. Be sure to read this leaflet carefully before starting any new medication. The Electronic medicines compendium has a list of patient leaflets. you can visit by heading to
  2. Be aware of potential side effects: All medications have the potential to cause side effects, ranging from mild and short-lived symptoms to more serious, long-lasting issues. It's important to understand the possible side effects of a medication and how to manage them. The NHS has a helpful resource on managing medication side effects, while also speaking to a healthcare professional is important in understanding any potential risks of taking Acetazolamide.
  3. Interactions with other medications: Some medications may interact with others, leading to increased side effects or reduced effectiveness. Make sure to inform your healthcare professional about all the medications and supplements you are currently taking. The NHS offers a useful tool for checking potential drug interactions here.
  4. Contraindications and precautions: Certain medical conditions or factors may make it unsafe for you to take a particular medication. Before starting any new medication, inform your healthcare professional about your medical history and any current health issues. The NHS provides more information about contraindications and precautions here.
  5. Appropriate use and dosage: It's crucial to follow the prescribed dosage and instructions for taking a medication to ensure its effectiveness and minimise the risk of side effects. The NHS has a useful guide on using medicines safely here.
  6. Monitoring and follow-up: Some medications require regular monitoring or follow-up appointments with your healthcare professional to ensure their safety and effectiveness. Be sure to schedule and attend these appointments as needed.

Can I buy Acetazolamide in the UK?

Yes, you can buy Acetazolamide in the UK with a valid prescription and or consultation form. Acetazolamide is available in the UK for purchase from local pharmacies with a valid prescription and or consultation. It is imperative that you ensure that the pharmacy you are buying the products from is licensed and registered with the General Pharmaceutical Council (GPhC).

Are Acetazolamide users satisfied with the product?

We have a list of reviews from customers taking Acetazolamide at the bottom of this page. For more information of the reviews of Acetazolamide head over to for further details.

Can I buy Acetazolamide from an online pharmacy?

This is dependent on your eligibility for the medication.

How much does Acetazolamide cost?

The costs of Acetazolamide are listed at the top of the page. Pricing is provided as a reference as we do not sell Acetazolamide.

When should acetazolamide be used?

If you suffer from altitude sickness, you should consider asking your doctor if acetazolamide is right for you. However, it should not be used if you have allergic reactions, liver diseases, electrolyte imbalance, kidney diseases etc.

What will happen if acetazolamide is suddenly stopped?

It should be used and stooped only after consulting the physician. Stopping it will cause the symptoms of the problems to come back. You should also not offer it to anyone despite having the same symptoms.

Can alcohol be used while taking acetazolamide?

Drinking alcohol is not advised as dizziness and drowsiness are among the common side effects, and alcohol can aggravate these effects.


Can acetazolamide cause weight loss?

While the effect seems less common, some studies have reported weight loss as one of the side effects of the drug.

Does acetazolamide lower blood pressure?

It has orthostatic effects and causes a significant decrease in standing systolic blood pressure. That's why it is used for altitude sickness. 

Which medicines should be avoided while taking acetazolamide?

Acetazolamide can interact with various drugs, e.g., anticoagulants, diuretics, digoxin, diabetes drugs, aspirin (and other salicylates), quinidine, CNS stimulants, drugs influencing salts etc. Consult the physician before using it while on these drugs. In principle, you need a consultation before using it while on any other medication.

Customer Reviews

Based on 2 reviews
Matthew Neither

Acetazolamide has been a game-changer for me. I've experienced significant relief from altitude sickness during my mountain hikes. Absolutely recommend it!

Geoffrey Acey

I appreciate when pharmacies offer a rewards program. It's a nice way to earn discounts on future purchases.