Acetazolamide tablets (formerly Diamox) for altitude sickness, forced acclimatisation and altitude sleep disturbance.
|Acetazolamide 250mg||28 tablets||£27.00|
|Acetazolamide 250mg||56 tablets||£49.50|
|Acetazolamide 250mg||112 tablets||£92.00|
Dr Fox supplies medicine on prescription and charges a small prescription fee based on the order value of each prescription.
Prescriptions are issued by our doctors online and sent electronically to our pharmacy.
If you have your own private or NHS paper prescription please post to our pharmacy (details).
Dr Fox prices are 25%–50% lower than other UK online clinics.
|Order value||Prescription fee|
|up to £10||£1.00|
|up to £20||£3.00|
|up to £50||£5.00|
|up to £100||£8.00|
|Acetazolamide 250mg||Dr Fox||Health Express||treated.com||Euroclinix||Online Clinic|
|28 tablets||£27.00||£49.95||£51.00 (30 caps)||£49.95||£49.95|
Please do not order without reading and understanding this medical information.
Print information to take with you
Most trekkers and climbers do not need, and should not take acetazolamide tablets (Diamox).
- Altitude problems are unlikely below 2,500 metres (8,000 feet).
- Anybody can suffer from illness caused by altitude. Nobody is immune to it.
- The best way to reduce the risk is to acclimatise and be prepared to descend.
Ascend slowly with overnight stops at regular intervals.
- People planning to ascend over 3,000 metres (10,000 feet) should spend a night at an intermediate elevation below 3,000 metres before they start to ascend.
- Above 3,000 metres ascend only 300-500 metres (1,000-1,500 feet) a day to each next new sleep height.
- If more than 500 metres (1,500 feet) of ascent is required in the day, descend back to 500 metres to sleep (climb high, sleep low).
- For every 1,000 metres (3,000 feet) of ascent stop for 2 nights sleep before going higher.
Symptoms of mild early acute mountain sickness
Stop ascending until feeling better.
- Headache not relieved by paracetamol and drinking a litre of water (early symptom of acute mountain sickness)
- Fatigue and weakness.
- Dizziness and light-headedness.
- Difficulty sleeping.
Do not ascend if these symptoms develop. Stop until the symptoms resolve (usually 24-48hrs) or descend. Descending will usually make the symptoms go more quickly.
Ascent can be continued when these symptoms subside, usually after 24-48 hrs.
- Do not keep ascending.
- It helps to drink plenty.
- Avoid alcohol and sedatives.
Emergencies requiring immediate descent
Two sets of symptoms requiring immediate descent:
- Fluid on the lungs
Showing up as struggling to breath, extreme fatigue, rattling breathing, coughing, blue or grey lips and fingernails, drowsiness, collapse, confusion and death. This condition is known as HAPE (High Altitude Pulmonary Oedema). The cardinal feature is extreme shortness of breath – being short of breath when everybody else has got their breath back.
- Fluid on the brain
Showing up as changes in behaviour, lethargy, and loss of coordination (unable to walk in a straight line). This can progress to coma and death. This condition is known as HACE (High Altitude Cerebral Oedema). The cardinal feature is cognitive impairment (inability to think straight and carry out normal tasks).
These two conditions are emergencies requiring immediate descent, even if this is in the night. The descent needs to be at least 500-1,000 metres (1,500-3,000 feet) and as soon as is possible. Delay can be fatal.
In addition to descent, treatment includes oxygen, steroids and hyperbarric oxygen (oxygen delivered in a high pressure chamber).
Notes about HACE and HAPE
- Can come without any warning.
- Can develop rapidly over a period of hours.
- Often start at night, although can come on in the day.
- There may be no preceding symptoms or warning.
- Can affect people who have ascended previously to the same height without problems.
- Can affect people who have followed the guidelines for acclimatisation.
- Can affect people who are taking acetazolamide.
- Can affect fit and unfit people and indigenous people including porters.
About acetazolamide (Diamox)
Acetazolamide increases the amount of urine produced and changes the acidity of the blood. The net effect is to improve breathing and reduce fluid around the brain and in the lungs. It is important to drink plenty whilst taking acetazolamide, at least 2 to 3 litres a day.
Acetazolamide is not licensed to prevent and treat altitude sickness, although it has long been used for this purpose.
Acetazolamide side effects
Most people taking acetazolamide for short courses experience no side effects.
Side effects reported include: a 'tingling' feeling in the fingers and toes, some loss of appetite, taste disturbance, flushing, thirst, headache, dizziness, fatigue, irritability, and depression.
Uses of acetazolamide
- In the mild acute mountain sickness (headache, fatigue, light headedness, difficulty with sleep) symptoms resolve more quickly with acetazolamide. The symptoms usually go by themselves in around 24-48 hrs. This usually reduces to around 12-24 hrs with acetazolamide.
- Taking acetazolamide will reduce the likelihood of altitude sickness in people who are forced to ascend without proper acclimatisation. Serious illness and even death are still possible. acetazolamide is not a substitute for acclimatisation.
- Acetazolamide improves the pattern of breathing during sleep at altitude and thus quality of sleep. During sleep at altitude the breathing pattern alters; rapid breaths are followed by prolonged pauses. This is not dangerous but tends to lead to poor sleep.
We do not recommend taking acetazolamide for people planning to undertake routine ascents. Most people who acclimatise properly do not need it. Taking acetazolamide can give a false sense of security.
- For the treatment of mild early acute mountain sickness (headache, fatigue, light headedness, difficulty with sleep): Acetazolamide 250mg (one tablet) twice daily until symptoms resolve, when planned ascent can be resumed.
- Where rapid ascent without proper acclimatisation cannot be avoided: Acetazolamide 250mg (one tablet) twice daily, started the day before ascent or as soon as possible after starting to ascend and continue for 2-3 days after final altitude is reached.
- For disturbed breathing pattern during sleep: Acetazolamide 125mg (half a tablet) twice daily. Continue until descent to an altitude where sleep is no longer a problem. Acetazolamide is not a sedative.
Stopping acetazolamide does not cause a rebound in symptoms. The symptoms will not be worse than they would have been if acetazolamide had not been taken in the first place.
Taking acetazolamide for early symptoms does not mean it is OK to keep ascending. Do not ascend until symptoms resolve completely, usually 24-48 hrs.
Acetazolamide does not mask serious underlying symptoms. It treats the cause, not the symptoms. If a person feels better on acetazolamide it is because their condition has improved.
Take a trial dose of half a tablet 3-4 days before travel to check for possible adverse reactions.
Treat altitude with respect. Do not imagine that a strong person can simply battle through. People who climb and hike in high places have a reputation for pushing themselves. When it comes to altitude; planning ahead, taking one's time and responding to one's own body are virtues.
If you wish to discuss with our site doctors please contact via firstname.lastname@example.org or telephone +44 (0)117 2050198.Buy treatment
Dr Fox supplies acetazolamide tablets on prescription – you are required to answer a short medical questionnaire before your order can be completed.
Diamox is a brand name for acetazolamide 250mg tablets [details]
The Diamox brand is no longer being sold in the UK (April 2015). We continue to use the name Diamox for acetazolamide tablets because this is the name people recognise. We supply only UK licensed acetazolamide from UK pharmacies.
The order process
Answer short medical questionnaire
Choose treatment, register, and pay
Doctor issues prescription online
Medicine posted direct from pharmacy
“Great service. Ordered my goods and received them very quickly with no problems at all. Will definitely use your services again and I will be recommending yourselves to many people.”17 July 2017 – Keely D., Luton
“I have always found their customer service to be good, their prices to be competitive and delivery to be fast.”20 June 2017 – Anonymous
“Repeat prescriptions are easy to order. Log into your account (previously set up with initial order) 5'S I have dealt with customer services directly previously. Cannot fault them”12 June 2017 – Col H., Co Northampton
“Easy to order items. Always kept up to date with progress of order from approval through to delivery. Excellent service every time.”30 May 2017 – Colin W., Co Durham
“Dr. Fox is an easy to navigate website;the communication is excellent ; the service is quick and discreet. Last but not least, the prices are very reasonable.”02 May 2017 – Anonymous
“very pleased, fast delivery, work just as well as brand names, good customer service, what more could you ask for thanks dr fox”24 April 2017 – Frank L., Leeds
“Dr Fox is a reputable company so had no hesitation in ordering from the company excellent service and quick response to completing my form and easy to navigate the system and the prices for my product I think are the cheapest on the internet The delivery was excellent so would order again”11 April 2017 – Keith A., Newcastle
“I have used their service many many times over the last 2 years and am a very happy customer. Always on time and deliver exactly what was ordered.”02 April 2017 – Paul J., London
“We were a bit concerned about this site and worried of its reliability. Those doubts were unfounded and found Dr Fox to be genuine and trust worthy. Highly recommend using this site and fantastic prices.”24 March 2017 – Alan Y., West Lothian
“always get what you ordered every time. I will use again and again and again no one else comes close for price quality and delivery.”22 March 2017 – M. W., Oxon
“I've always been slightly dubious about ordering from online pharmacie but was exceptionally impressed by the excellent service and quailty of product I received . Well done guys and thank you.”12 March 2017 – Philip A., Bristol
“Thoroughly recommended, it's easy to navigate the website. Prices are reasonable and ordering simple. Delivery is fast and packaging very good.”13 February 2017 – Alan R., Bury St. Edmunds
“Fantastic service, discrete and great prices. Can not recommend highly enough. Will be using again.”09 February 2017 – Ian V., Chester
“Easy ordering process and delivery as expected. Will be buying from Dr Fox again.”01 February 2017 – Matt M., Farnham
“I have used Dr Fox twice now and on both occasions they have been excellent. Easy to use and very speedy deliveries.”18 January 2017 – George H., Prestwick
“This online pharmacy not only looks professional and slick it does exactly that with its actual product supply and customer service - what a find.”8 January 2017 – Angus S., Inverness
“1st time I have ever ordered on line and was very happy with the service and how quick and easy it was to do”21 December 2016 – Bezza K., Kent
“Correct products delivered, on time and discreetly packed. Prices are always competitive. I have ordered on several occasions before and alway get the same great service”12 December 2016 – Ian G., Colchester
“Fantastic service from a great and reputable company.”07 December 2016 – Pete P., Macclesfield
“I don't know why I have never heard of this website before It's absolutely incredible. My transaction process was very hassle-free, the communication was great and I've got my malarial tablets for a fraction of the price if I'd gone to the doctor directly.”01 December 2016 – Mariah S., London