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Mesalazine and idiopathic intracranial hypertension

Patients who are currently prescribed mesalazine, should be aware of the new safety information regarding this medication. 

  • there have been very rare reports of increased pressure within your skull known as idiopathic intracranial hypertension (IIH) in some patients receiving mesalazine
  • IIH is not normally life threatening; however, in rare cases can cause serious vision problems which must be monitored and treated where possible
  • tell your doctor immediately if you experience:
    • progressively more severe and recurrent headache
    • disturbed vision
    • ringing or buzzing in the ears
    • back pain
    • dizziness
    • neck pain