Gleek
Gleek Uses, Dosage, Side Effects, Food Interaction and all others data.
Gleek stimulates the release of insulin from pancreatic beta-cells by facilitating Ca++ transport across the beta-cell membranes. It lowers blood glucose by stimulating the release of insulin from the pancreas, an effect dependent upon functioning beta cells in the pancreatic islets. Extrapancreatic effects also may play a part in the mechanism of action of oral sulfonylurea hypoglycemic drugs. Two extrapancreatic effects shown to be important in the action of Gleek are an increase in insulin sensitivity and a decrease in hepatic glucose production. The anti-oxidant, platelet inhibiting and fibrinolytic actions of Gleek involve processes which have been implicated in the pathogenesis of vascular complications of type 2 diabetes.
Based on the pharmacological properties, gliclazide is a second generation sulphonylurea which acts as a hypoglycemic agent. It stimulates β cells of the islet of Langerhans in the pancreas to release insulin. It also enhances peripheral insulin sensitivity. Overall, it potentiates insulin release and improves insulin dynamics.
| Trade Name | Gleek |
| Generic | Gliclazide |
| Gliclazide Other Names | Gliclazida, Gliclazide, Gliclazidum |
| Weight | 80mg |
| Type | Tablet |
| Formula | C15H21N3O3S |
| Weight | Average: 323.41 Monoisotopic: 323.130362722 |
| Protein binding | 94%, highly bound to plasma proteins |
| Groups | Approved |
| Therapeutic Class | Sulfonylureas |
| Manufacturer | United Chemicals &, Pharmaceuticals Ltd |
| Available Country | Bangladesh |
| Last Updated: | September 19, 2023 at 7:00 am |
Uses
Gleek is used for control of blood glucose in patients with non-insulin dependent diabetes mellitus (Type-II, maturity onset diabetes mellitus) whose hyperglycemia cannot be controlled by diet alone.
Gleek is also used to associated treatment for these conditions: Type 2 Diabetes Mellitus
How Gleek works
Gleek binds to the β cell sulfonyl urea receptor (SUR1). This binding subsequently blocks the ATP sensitive potassium channels. The binding results in closure of the channels and leads to a resulting decrease in potassium efflux leads to depolarization of the β cells. This opens voltage-dependent calcium channels in the β cell resulting in calmodulin activation, which in turn leads to exocytosis of insulin containing secretorty granules.
Dosage
Gleek dosage
Adult: The usual initial dose of Gleekis 40 to 80 mg daily, gradually increased, if necessary up to 320 mg daily until adequate control is achieved. A single dose should not exceed 160 mg. When higher doses are required it should be taken twice daily, according to the main meals of the day. For extended release tablet the initial recommended dose is 30 mg daily, even in elderly patients (>65 years); the daily dose may vary from 30 to 120 mg taken orally, once daily.
Gleek extend release tablet should be taken with food because there is increased risk of hypoglycemia if a meal is taken late. It is recommended that the medication be taken at breakfast time. If a dose is forgotten, the dose taken on the next day should not be increased. Dose titration should be carried out in steps of 30 mg, according to the fasting blood glucose response. Each step should last for at least two weeks. Gleek extend release tabletshould be neither broken nor chewed. Gleek extend release tablet30 mg, can replace Gleek 80 mg tabletsfor doses of 1 to 4 tablets per day.
Elderly: Plasma clearance of Gleek is not altered in the elderly and steady state plasma levels are similar to those in adults under 65 years. Clinical experience in the elderly shows that it is effective and well tolerated.
Children: Gleek as with other sulfonylureas is not indicated for the treatment of juvenile onset diabetes mellitus.
Side Effects
Hypoglycemia may occur in concurrent conditions such as hepatic & renal diseases, alcohol intoxication and adrenal and pituitary insufficiency. Mild gastro-intestinal disturbances including nausea, dyspepsia, diarrhea, and constipation have been reported but these types of adverse reactions can be avoided if Gleek is taken during a meal. Allergic dermatological reactions including rash, prurits, erythema, bullous eruption have been reported during treatment with the drug but are not known to be directly attributable to it. More serious reactions like leucopenia, thrombocytopenia, agranulocytosis, pancytopenia, hemolytic anemia, cholestatic jaundice, GI hemorrhage have not been reported with Gleek.
Toxicity
LD50=3000 mg/kg (orally in mice). Gleek and its metabolites may accumulate in those with severe hepatic and/or renal dysfunction. Symptoms of hypoglycemia include: dizziness, lack of energy, drowsiness, headache and sweating.
Precaution
Gleek should be used carefully in patients with hepatic impairment. If there is definite hepatic disease then gliclazide should not be used. Consucon (Gleek) can be used safely in patients with renal insufficiency as it is extensively metabolized. Consucon has less sudden hypoglycaemic episode than other sulfonylurea group of drugs.
Interaction
The hypoglycemic effect of Gleek may be potentiated by NSAID (in particular aspirin), phenylbutazone, sulfonamides, coumarin derivatives, MAOIs, beta-adrenergic blockers, tetracyclines, chloramphenicol, clofibrate, cimetidine and miconazole tablets. Ingestion of alcohol may also increase the hypoglycemic effect of Gleek. Some drugs may on the contrary, reduce its activity e.g. barbiturates, corticosteroides, thiazide diuretics, thyroid hormones, laxatives and oral contraceptives.
Food Interaction
- Avoid alcohol.
- Take with or without food. Consistent food intake reduces the risk of hypoglycemia.
Elimination Route
Rapidly and well absorbed but may have wide inter- and intra-individual variability. Peak plasma concentrations occur within 4-6 hours of oral administration.
Half Life
10.4 hours. Duration of action is 10-24 hours.
Elimination Route
Metabolites and conjugates are eliminated primarily by the kidneys (60-70%) and also in the feces (10-20%).
Pregnancy & Breastfeeding use
Pregnant Women: Gleek should not be used in pregnant women although animal studies of Gleek have not shown any teratogenic effect.
Nursing Mothers: This drug is contraindicated when breast feeding.
Contraindication
Hypersensitivity to sulfonylurea, diabetes complicated by ketoacidosis with coma, as a sole therapy of insulin-dependent (Type-1) diabetes mellitus, diabetes when complicated by pregnancy & breast-feeding.
Special Warning
Elderly: Plasma clearance of Gleek is not altered in the elderly and steady state plasma levels are similar to those in adults under 65 years. Clinical experience in the elderly shows that it is effective and well tolerated.
Children: Gleek as with other sulfonylureas is not indicated for the treatment of juvenile onset diabetes mellitus.
Acute Overdose
Symptoms: Hypoglycaemia with or without coma, convulsions or other neurological disorders.
Management: Carbohydrate intake, dosage adjustment and/or change of diet may be helpful. Admin rapid IV inj of concentrated glucose soln for hypoglycaemic coma.
Storage Condition
Store in a cool and dry place, below 30° C and away from light.
Innovators Monograph
You find simplified version here Gleek
Gleek contains Gliclazide see full prescribing information from innovator Gleek Monograph, Gleek MSDS, Gleek FDA label
FAQ
What is Gleek used for?
Gleek is a sulfonylurea type of anti-diabetic medication, used to treat type 2 diabetes. It is used when dietary changes, exercise, and weight loss are not enough.
How safe is Gleek?
Gleek is safe to take for a long time. There's no evidence it harms your pancreas or your general health. But Gleek may stop working properly after a while. Your doctor may then want to stop it or add a different medicine to help keep your blood sugar level stable.
How does Gleek work?
Gleek works by increasing the amount of insulin your body makes.
What are the common side effects of Gleek?
Common side effects of Gleek are include:
- stomach ache or indigestion.
- feeling sick (nausea)
- being sick (vomiting) or diarrhoea.
- constipation.
Is Gleek safe during pregnancy?
Gleek is not generally recommended in pregnancy and while breastfeeding. It's not clear whether Gleek harms an unborn baby. For safety, your doctor will probably change your medicine to insulin before you become pregnant or as soon as you find out you're pregnant.
Is Gleek safe during breastfeeding?
Gleek is not generally recommended in pregnancy and while breastfeeding.
Can I drink alcohol with Gleek?
Yes, you can drink alcohol while taking Gleek, but it's best for men and women to drink no more than 2 units a day. Drinking more than this can increase the risk of low blood sugar.
Can I drive after taking Gleek?
If your blood sugar levels are stable, your ability to drive, cycle or use machines or tools should not be affected by Gleek. But if your blood sugar levels become too low, this can reduce your concentration. If this happens to you, do not drive, cycle or use machines or tools until you feel better.
When should be taken of Gleek?
If you take Gleek once a day, it's best to take it in the morning with breakfast. Gleek can sometimes make your blood sugar level too low . Carry some sweets or fruit juice with you to help when this happens.
Can I take Gleek on an empty stomach?
Gleek tablets should be taken before food , either with breakfast or the first main meal of the day.
How long does Gleek take to work?
When taken 30 minutes before breakfast, Gleek produced a peak of IRI 30 minutes after the meal; taken immediately before or after, it took twice to three times as long to produce an IRI peak.
How long does Gleek last in the body?
Gleek is more effective when administered about 30 minutes before a meal. Blood sugar control persists for up to 24 hours following a single dose, even though levels of Gleek in the blood are barely detectable.
How often can I take Gleek?
For standard-release Gleek, the maximum daily dose is 320mg. If you need to take more than 160mg a day, take the tablets twice a day with your morning and evening meals.
Who should not take Gleek?
Gleek is only for adults. Do not give this medicine to children under 18 years.
What happen If I missed Gleek?
If you missed a dose of Gleek, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose. Do not take two doses together to make up for a missed dose.
What happen if I overdose of Gleek?
Never take more than the prescribed dose of Gleek. If you suspect that you might have taken an overdose of this medicine, go to the nearest emergency medical department/hospital.
Can Gleek affects my heart ?
If you have problems with the heart and blood vessels, use Gleek with caution as it can increase the risk of heart failure.
Will Gleek affect my fertility?
There's no firm evidence to suggest that taking Gleek will reduce fertility in either men or women.
Does Gleek affect kidney function?
Gleek can be considered in renal impairment if appropriate attention is paid to the dose.
Can Gleek cause liver damage?
This case strongly suggests that Gleek can induce acute icteric liver necro-inflammation which may be misdiagnosed clinically as acute viral hepatitis. In patients who show abnormal liver function tests, the immediate discontinuation of Gleek is recommended.
