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Acetazolamide is used for the prevention and reduction of the symptoms of altitude sickness. Acetazolamide can decrease a headache, nausea, dizziness, tiredness, and shortness of breath that may occur when you climb quickly to altitudes above 10,000 feet.
Do not take Acetazolamide 250mg Tablets if:
• you know you are allergic to sulphonamides, sulphonamide derivatives including acetazolamide or to
any of the ingredients in the medicine.
• you have severe liver problems
• you have or have ever had severe kidney problems
• you have a particular type of glaucoma known as chronic non congestive angle closure glaucoma
(your doctor will be able to advise you)
• you have reduced function of the adrenal glands – glands above the kidneys – (also known as
Addison’s disease)
• you have low blood levels of sodium and/or potassium or high blood levels of chlorine (your doctor
will advise you).
Speak to your doctor if any of the above applies to you.
Talk to your doctor or pharmacist before taking Acetazolamide 250mg Tablets if:
• 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.
Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines.
If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask
your doctor or pharmacist for advice before taking this medicine. Acetazolamide 250mg Tablets SHOULD NOT be taken if you are pregnant, think you are pregnant or
are planning to become pregnant.
Always take this medicine exactly as your doctor or pharmacist has told you. Check with your doctor
or pharmacist if you are not sure.
• This information will also be on the label.
• Acetazolamide 250mg Tablets should be swallowed whole with a drink of water, just before or just
after a meal. Do not chew or crush the tablets.
• The dose varies from person to person depending on their condition. Your doctor will decide on the
most appropriate dose. If you are not sure how many tablets to take or when to take them, ask your
doctor or pharmacist.
The active substance is acetazolamide. Each tablet contains 250mg acetazolamide. The other ingredients are dicalcium phosphate, corn starch, magnesium stearate, sodium starch, glycolate, and povidone.
Acetazolamide 250mg Tablets can affect the cells in your blood. This could mean that you are more likely to catch infections and that your blood may not clot properly. If you have a sore throat or fever or you notice bruises or tiny red or purple spots on your skin you should contact your doctor immediately. If your muscles feel weak or you have fits, you should see your doctor immediately. Acetazolamide 250mg Tablets can affect the liver and kidneys. If you experience pain in your lower back, pain or burning when you pass urine, have difficulty in passing urine, or you stop passing urine, have blood in your urine, pale stools, or if your skin or eyes look slightly yellow, you should contact your doctor. You should also contact your doctor if your stools are black or tarry, or if you notice blood in your stools.
Rare cases of skin rashes including an increased sensitivity to sunlight have been reported. If you
experience any unusual skin rashes, inform your doctor.
If you take Acetazolamide 250mg Tablets for a long time it can occasionally affect the amount of
potassium, or sodium in your blood. Your doctor will probably take blood tests to check that this does
not happen. You might also experience bone thinning or the risk of kidney stones with long-term
therapy. High or low blood sugar levels may occasionally occur.
Contact a doctor immediately if you experience a serious skin reaction: a red, scaly rash with bumps
under the skin and blisters (exanthematous pustulosis). The frequency of this side effects is not known
(cannot be estimated from the available data).