This website is intended to assist with patient education and should not be used as a diagnostic, treatment or prescription service, forum or platform. Always consult your own healthcare practitioner for a more personalised and detailed opinion
Gliclazide
Please note: these are basic guidelines, refer to your doctor for a professional medical opinion.
Glibenclamide is used in the treatment of Type 2 diabetes
How does it work?
Glibenclamide is an oral antidiabetic drug belonging to the sulphonylurea class
It stimulates the production and secretion of insulin from the islet cells in the pancreas
Insulin increases the uptake of sugar into body cells, which decreases blood sugar levels
How should it be used?
Medication forms only part of diabetes treatment, exercise and correct diet are essential
Take missed dose with your next meal, do not double-dose to make up for the missed one
If you experience early warning symptoms of low blood sugar, eat or drink something sugary
What is the typical dosage?
Your doctor will recommend a dosage tailored to your need, but typically:
Total adult daily dose: 40–320mg, taken once or twice daily with meals
Doses above 160mg are divided into two doses – morning and evening
How quickly will it start to work?
Within 1 hour
How long will the effects last?
12–24 hours
When should I stop using it?
Do not stop the drug without consulting your doctor
Is it safe for prolonged use?
No problems expected. All diabetics need regular blood tests for sugar levels and kidney function, as well as eye assessments, heart examinations, and urine tests.
What are the possible side effects?
The following have been reported:
More common: dizziness, fainting, weakness, sweating, trembling, confusion, or headache (symptoms of hypoglycaemia or low blood sugar - usually due to missed meals)
Less common: constipation, diarrhoea, nausea, vomiting, rash, itching, and weight change
Report to your doctor before taking your next dose if you experience: jaundice
What other considerations are important?
Dosage may be adjusted by your doctor under certain conditions.
Certain health problems: liver/kidney/thyroid/adrenal problems, allergy to sulphonylurea drugs, porphyria
Other medicines: corticosteroids, oestrogens, diuretics, rifampicin, warfarin, aspirin, sulphonamides and other antibacterials, antifungals, NSAIDs, ACE inhibitors, beta blockers
Pregnancy and breast-feeding: Not usually prescribed
Children: Not prescribed
Over 60: Reduced doses may be necessary
Driving and hazardous work: Caution, can cause dizziness, drowsiness, and confusion
Alcohol: Avoid, alcohol may upset diabetic control
Surgery and general anaesthetics: Always notify your doctor that you have diabetes
Sunlight: Avoid too much exposure, the drug may make your skin more sensitive