Diamox (acetazolamide) 250mg tablets
Diamox (acetazolamide) 250mg tablets

Diamox (acetazolamide) 250mg tablets

Diamox (acetazolamide) 250mg tablets

Diamox is an altitude sickness medication that can help to lessen the symptoms associated with being at a high altitude.

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What is Diamox?

Diamox is the branded version of acetazolamide which is an altitude sickness medication. Diamox works to reduce the symptoms of mountain or altitude sickness including headaches, nausea, dizziness and shortness of breath. 

How does it work?

The tablets work by increasing urine production which then alters the acidity of the blood. This causes a reduction of fluid in the lungs and around the brain leading to improved breathing. When the fluid reduces in the lungs and brain it will also lessen the symptoms felt by altitude sickness. 

Is Diamox right for me?

If you struggle with nausea, dizziness, shortness of breath or headaches as a result of heightened elevation, Diamox will relieve your symptoms, allowing you to be at increased altitude without feeling discomfort.

Side Effects

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

  • Dizziness
  • Lightheadedness
  • Increased urine production
  • Blurred vision
  • Drowsiness
  • Loss of appetite
  • Headaches
  • Feeling tired
  • Stomach upset

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 envelopes. You will not have to worry about any content descriptions, and the package will be for your eyes only!


Commonly Used Dosage Guidelines for Diamox

Take as directed.

  • For rapid forced ascents take 125mg (half a tablet) twice daily. 
  • For early acute mountain sickness, take 250mg (one tablet) twice daily. 
  • For altitude related sleep disturbance, take 125mg (half a tablet) twice daily.

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.

Additional Information

Altitude sickness usually will be present after spending 6-24 hours at altitudes of more than 2,500m above sea level. The active ingredient acetazolamide can prevent and treat high-altitude sickness.

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Complete a Quick & Free Online Consultation

This is a quick process and should only take 1 - 2 minutes. All of your answers are confidential, and just like a GP consultation, you will know what treatment is most suitable for you instantly upon completion.

Place Your Order

Once you have completed the quick online form, select the treatment option most suitable to you and checkout securely.

Express Next Day Delivery

We will dispatch your order using our express next-day courier service from our pharmacy partners across the UK. You will receive your treatment discreetly to the comfort of your home/ selected address. 

What is the Diamox dose for altitude sickness?

The standard dose for Diamox is 250 mg twice daily. This may be increased to 500 mg twice daily if needed. Some people may be able to take a lower dose of 125 mg twice daily.

Is Diamox the same as acetazolamide?

Diamox is the brand name for the medication acetazolamide. Acetazolamide is also available as a generic drug. Generic drugs are typically cheaper than brand-name drugs.

Is this medication suitable for me?

Please get in touch with a doctor if you are unsure what medication is suitable for you. You can also complete our online consultation form to check your eligibility for the product.

How is the medication delivered?

All orders placed before 14:00 from Monday to Friday will be dispatched that day. The orders are sent using 24 Hour Tracked delivery provided by Royal Mail. Items will usually arrive the very next day after the order has been placed. We also provide tracking for your orders to check the status and location of your parcel. All our medication is packaged in plain confidential padded white or brown envelopes. This ensures that your orders are discreet, and the content of the orders will be for your eyes only.

Who can take Diamox?

Diamox is safe for most people, but there are some people who should not take it. If you have kidney disease, liver disease, or a history of seizures, you should not take Diamox. You should also let your doctor know if you are pregnant or breastfeeding before taking Diamox.

How does Diamox work?

Diamox works by helping the body get rid of excess fluid. It does this by increasing the amount of urine your body makes. Diamox also helps to improve breathing and decrease the build-up of fluid in the brain. These effects can help to prevent or treat altitude sickness.

How do I order my medication?

Some products only require an online consultation which approximately takes 1 minute to complete, enabling you to then buy the product. Other products will also require a prescription; in this case, you will need to complete the online consultation, and then one of our partner pharmacy prescribers or doctors will review the online consultation questions and approve the order for delivery if you are eligible to purchase the item.

Can I cancel or return my order?

For non-medicinal products, you are eligible to return the product within 14 days of receipt in the same packaging you received. For medicinal products, you are eligible to cancel the order only until it has been dispatched. From that point forward, you are no longer eligible to return the order.

You have the right to cancel your order for medication up to the point when your medication is dispatched.

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