Nobesit XR 500mg Tablet

What is Nobesit XR?

Nobesit XR is an extended-release formulation of Metformin Hydrochloride manufactured by Incepta Pharmaceuticals Ltd. It is a first-line oral medication for type 2 diabetes mellitus, designed to release the active ingredient gradually over the day, allowing convenient once-daily dosing with fewer gastrointestinal side effects than immediate-release metformin. The 500 mg strength is commonly used as a starting dose or for patients on a lower total daily requirement.

Generic Name and Composition

Each extended-release tablet contains 500 mg of Metformin Hydrochloride.

Indications

• Type 2 diabetes mellitus, particularly in overweight patients, as first-line therapy
• Used alone or in combination with other oral antidiabetic agents or insulin
• May be used in polycystic ovary syndrome (PCOS) under physician guidance

How It Works — Mechanism of Action

Metformin lowers blood glucose primarily by reducing hepatic glucose production, decreasing intestinal absorption of glucose, and improving insulin sensitivity in peripheral tissues. Unlike sulfonylureas, it does not stimulate insulin secretion and therefore carries a low risk of hypoglycemia on its own. The extended-release formulation releases metformin slowly, maintaining steady blood levels over 24 hours.

Dosage and Administration

• Dosage is individualized by a physician; the 500 mg strength is often used as a starting dose, with gradual up-titration based on tolerance and blood glucose control.
• Typically taken once daily with the evening meal, swallowed whole — do not crush, split, or chew.
• Take with food to reduce stomach upset.
• It is normal to occasionally see the tablet shell (ghost tablet) in stool — this does not mean the medication was not absorbed.

Side Effects

Common: Diarrhea, nausea, vomiting, abdominal discomfort, loss of appetite, metallic taste — usually mild and transient, especially at treatment start.

Uncommon: Vitamin B12 deficiency with long-term use, headache, mild skin reactions.

Rare: Lactic acidosis (more likely with renal impairment, dehydration, or excess alcohol use) — a medical emergency requiring immediate attention.

Drug Interactions

May increase metformin levels / risk of lactic acidosis: Iodinated contrast media, certain medications affecting renal clearance.

May affect blood glucose control: Corticosteroids, diuretics, and some antipsychotics may raise blood glucose; alcohol may increase the risk of lactic acidosis and hypoglycemia.

Other considerations: Inform your doctor about all medications, including herbal supplements, before starting therapy.

Contraindications

• Known hypersensitivity to metformin
• Severe renal impairment
• Acute or chronic metabolic acidosis, including diabetic ketoacidosis
• Conditions predisposing to tissue hypoxia (e.g., severe heart failure, respiratory failure, recent myocardial infarction)
• Severe dehydration, severe infection, or shock

Pregnancy and Lactation

Use during pregnancy and breastfeeding should only be under medical supervision; insulin is often preferred for tight glycemic control in pregnancy. Discuss the risks and benefits with your physician.

Precautions and Warnings

• Temporarily discontinue before procedures using iodinated contrast media, as advised by your physician.
• Use with caution in elderly patients and those with impaired kidney or liver function.
• Monitor renal function periodically during long-term therapy.
• Limit alcohol intake, as it increases the risk of lactic acidosis and hypoglycemia.
• Seek medical attention promptly for symptoms of lactic acidosis: unusual muscle pain, difficulty breathing, stomach discomfort, dizziness, or unusual tiredness.

Overdose

Overdose may lead to lactic acidosis, presenting with severe gastrointestinal symptoms, hypothermia, hypotension, and resistant bradyarrhythmias. This is a medical emergency requiring immediate hospitalization; treatment includes supportive care and hemodialysis to remove metformin and correct acidosis.

Storage Instructions

• Store below 30°C in a dry place, protected from light.
• Keep out of reach of children.
• Do not use after the expiry date printed on the pack.

Frequently Asked Questions

Q1: Why might I be started on 500mg instead of 1000mg?
A lower starting dose helps minimize gastrointestinal side effects; your physician may gradually increase the dose based on your response and blood glucose readings.

Q2: How is Nobesit XR different from regular Nobesit tablets?
Nobesit XR is an extended-release formulation that releases metformin slowly over the day, allowing once-daily dosing with generally better gastrointestinal tolerance than immediate-release metformin.

Q3: Will Nobesit XR cause low blood sugar (hypoglycemia)?
Metformin alone rarely causes hypoglycemia since it does not stimulate insulin release. Risk increases if combined with insulin or sulfonylureas.

Q4: How does Nobesit XR compare to Sitagil or Empatab?
Nobesit XR (metformin) works by reducing liver glucose production and improving insulin sensitivity, while Sitagil (sitagliptin) and Empatab (empagliflozin) work through different mechanisms. They are often combined for complementary blood sugar control under medical supervision.

Medical Disclaimer

This product is available by prescription only (Rx). The information provided is for educational purposes and does not replace professional medical advice. Always consult a registered physician before starting, stopping, or changing any diabetes therapy. DiabetesStore.com.bd is a licensed online pharmacy in Bangladesh.