Who can and cannot take alendronic acid

Most adults can take alendronic acid. Children who have osteoporosis can sometimes take it if it's been prescribed for them by a specialist doctor.

Alendronic acid is not suitable for some people. Check with your doctor or pharmacist before starting to take it if you:

• have ever had an allergic reaction to alendronic acid or any other medicine
• have problems digesting food, swallowing or other problems with your food pipe (oesophagus)
• have taken alendronic acid before but it made you feel dizzy
• are unable to stand or sit upright for at least 30 minutes after taking it
• have low calcium levels in your blood – alendronic acid sometimes causes low blood calcium, so your calcium levels could become even lower
• have kidney problems
• have cancer, or are having chemotherapy or radiotherapy
• have problems with your teeth, or are waiting for dental treatment such as having a tooth out
• smoke, or used to smoke – this may increase your risk of dental problems
• are pregnant, trying to get pregnant or breastfeeding