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Acetazolamide 250mg Tablets

28, 56, 84, 112


This medicine is used off-label to treat altitude sickness

Information Leaflet
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Acetazolamide is used to prevent and reduce the symptoms of altitude sickness. This medication can decrease headache, tiredness, nausea, dizziness, and shortness of breath that can occur when you climb quickly to high altitudes (generally above 10,000 feet/3,048 meters).

Additional information

Pack Size

28, 56, 84, 112

Uses / Instructions

Sleep disturbance of altitude is treated with 125mg (half a tablet) Diamox (acetazolamide) twice daily

Early mild acute mountain sickness (headache, fatigue, dizziness, loss of appetite) the Diamox (acetazolamide) dose is 250mg (one tablet) twice daily

Rapid forced ascent cannot be avoided the dose of Diamox (acetazolamide) is 125mg (half a tablet) twice daily?


Talk to your doctor or pharmacist before taking Acetazolamide 250mg Tablets

• you have or have ever had kidney problems such as kidney stones
• you have lung problems such as chronic bronchitis or emphysema, which cause difficulty in breathing
• you are over the age of 65
• a small number of people being treated with anti-epileptics such as Acetazolamide have had thoughts of harming or killing themselves, if at any time you have these thoughts, immediately contact your doctor.

Acetazolamide 250mg Tablets may affect some medical tests. If you visit a hospital or clinic for any medical tests, you should tell the doctor concerned that you are taking Acetazolamide 250mg Tablets.

Side Effects

Like all medicines, this medicine can cause side effects, although not everybody gets them.

All medicines can cause allergic reactions although serious allergic reactions are very rare. Any sudden wheeziness, difficulty in breathing, swelling of the eyelids, face or lips, rash or itching (especially affecting your whole body) should be reported to a doctor immediately.

Not known: frequency cannot be estimated from the available data
• headache
• diarrhoea
• feeling or being sick, loss of appetite, thirst, or a metallic taste in the mouth
• dizziness, loss of full control of arms or legs
• looking flushed
• a need to pass urine more often than normal
• tiredness or irritability
• feeling over-excited
• a tingling or numbness in the fingers or toes, or coldness in the extremities.
• depression
• drowsiness or confusion
• a loss of interest in sex
• ringing in the ears or difficulty in hearing
• temporary short-sightedness which subsides when the dosage is reduced or treatment is stopped.

See patient information leaflet for details.


The active substance is acetazolamide. Each tablet contains 250mg acetazolamide.

The other ingredients are dicalcium phosphate, corn starch, magnesium stearate, sodium starch glycolate, povidone.

See patient information leaflet of the box you receive as different generic brands will have different other ingredients.


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