Type 2 Diabetes Treatment
Metformin
🩺 Metformin is a globally recognized diabetes medication specifically designed to help manage and control blood sugar levels in patients with Type 2 Diabetes.
⚖️ Health Management Mechanism
It works by improving the body's response to insulin and reducing sugar production by the liver, allowing for a systematic and effective approach to managing Type 2 Diabetes.
✅ Proven Effectiveness
✔️ Helps maintain stable and safe blood glucose levels.
✔️ Reduces the risk of long-term complications associated with diabetes.
Shipping
Discreet shipping within Thailand — packaging does not identify the product. Customers can review shipping and return conditions per our store policy. Contact our team for any questions.
Product Description
Diabetes medication is essential for patients with type 2 diabetes, the most common chronic disease in Thailand. Metformin is a Biguanide class diabetes medication containing Metformin HCl 500/850 mg in Immediate Release formula. It is the same active ingredient as Glucophage generic at a more accessible price, recommended as the first-line treatment for type 2 diabetes according to international guidelines.
📊 Key Statistics
- Type 2 diabetes — Affects approximately 10% of the Thai population, with a continuously increasing trend
- Metformin is the most widely used diabetes medication in the world, with over 60 years of proven efficacy and safety
- Mechanism of action — Reduces hepatic glucose production, increases insulin sensitivity, does not cause weight gain, and does not cause hypoglycemia when used alone
- See other diabetes medications in the Diabetes collection
🏭 Metformin is a generic medication manufactured in Thailand with an active ingredient equivalent to Glucophage, Thai FDA approved. Its affordable price makes it suitable for long-term continuous use.
⚠️ Diabetes medication must be taken continuously as prescribed, combined with diet control and exercise. Never stop taking it on your own as it may cause blood sugar to rise, leading to complications.
About Metformin
What is Metformin?
Metformin is an oral diabetes medication containing Metformin HCl as its active ingredient. It belongs to the Biguanide drug class and is a generic medication manufactured in Thailand with the same active ingredient as Glucophage.
Metformin works by reducing hepatic glucose production and increasing insulin sensitivity in peripheral tissues, allowing cells to absorb glucose more effectively and lowering blood sugar levels.
Key advantages of Metformin include no weight gain and no hypoglycemia when used alone, making it a safe and highly effective diabetes medication. It is recommended as the first-line treatment for type 2 diabetes by both the ADA and WHO.
What is Metformin used for?
Type 2 Diabetes Mellitus: Metformin is the recommended first-line treatment for type 2 diabetes. It controls blood sugar levels and reduces HbA1c by 1–1.5%, used alongside diet control and exercise.
Prediabetes: Helps delay or prevent progression to type 2 diabetes, especially in those with high BMI or risk factors.
Polycystic Ovary Syndrome (PCOS — off-label): Used to improve hormonal balance, reduce insulin resistance associated with PCOS, regulate menstrual cycles, and increase chances of pregnancy in some cases.
How to Take Metformin / Dosage
Starting dose: Take 500 mg twice daily with meals (morning and evening) to reduce gastrointestinal irritation.
Dose adjustment: Your doctor may gradually increase the dose every 1–2 weeks based on blood sugar levels and response. Maximum recommended dose is 2,550 mg/day divided into 3 meals.
Important: Always take with food as this significantly reduces diarrhoea and nausea. If stomach upset occurs, the doctor may start at a low dose and gradually increase.
If you miss a dose: Skip the missed dose and take the next one at the usual time. Never take a double dose to compensate.
Side Effects of Metformin
Common side effects:
- Diarrhoea — most common, especially when starting; usually improves with continued use
- Nausea, vomiting
- Abdominal pain, bloating
- Metallic taste in the mouth
- Loss of appetite
Serious side effects (stop taking and seek medical attention):
- Lactic acidosis — A rare but dangerous condition. Symptoms: extreme fatigue, rapid breathing, abdominal pain, cold feeling, irregular heartbeat
- Vitamin B12 deficiency — Long-term Metformin use may reduce B12 absorption. Regular B12 level checks are recommended
How to reduce side effects: Start with a low dose and gradually increase. Always take with food. If symptoms persist, consider switching to the XR (Extended Release) formula.
Contraindications & Precautions
Do not use:
- eGFR <30 mL/min — increased risk of lactic acidosis
- Severe liver disease
- Acidosis (metabolic acidosis, diabetic ketoacidosis)
- Allergy to Metformin
Important precautions:
- Must stop at least 48 hours before contrast media injection — contrast may temporarily worsen kidney function, increasing the risk of lactic acidosis
- Heavy alcohol consumption — increases lactic acidosis risk
- Dehydration or severe infection
- Elderly patients — regular kidney function monitoring required
- Pregnancy — consult doctor before use
How Does Metformin Compare to Other Diabetes Medications?
Metformin vs. Glucophage: Same active ingredient (Metformin HCl). Glucophage is the originator brand by Merck at a higher price. Generic Metformin is a quality-equivalent medication, Thai FDA approved at a more accessible price.
Metformin vs. Glucophage XR: Glucophage XR is an Extended Release formula taken once daily with fewer GI side effects. Metformin Immediate Release requires 2–3 doses per day but is significantly more affordable.
Metformin vs. SGLT2 Inhibitors: SGLT2i is a newer diabetes drug class that aids weight loss and provides heart/kidney protection, but at a much higher price. Metformin remains the recommended first-line. SGLT2i is typically added when Metformin alone is insufficient.
How Long Does Metformin Take to Work?
Metformin Immediate Release has a half-life of approximately 6 hours, requiring 2–3 doses per day. Peak blood levels are reached within 2.5 hours of taking.
For blood sugar reduction: Effects begin within the first week, but full HbA1c results are seen at 3 months, when your doctor will check HbA1c for evaluation.
For PCOS: May take 3–6 months for noticeable improvement in menstrual regularity.
If blood sugar levels haven't improved after 3 months, consult your doctor about dose adjustment or adding another medication.
Where Can I Buy Metformin?
Metformin is a pharmacist-dispensed medication. You can order online from Intimo Life.
Can I buy Metformin online?
Yes. Order through Intimo Life — select the product, consult with a licensed pharmacist online, and receive your medication at home.
Do I need a prescription?
A doctor's prescription is not required, but the medication must be dispensed by a licensed pharmacist. At Intimo Life, our pharmacist will review your symptoms and health history to confirm suitability before shipping.
How does Intimo Life ship orders?
We deliver nationwide in Thailand with discreet packaging — no product names on the outside.
⚠️ Disclaimer
The information on this page is for general informational purposes only and is not intended to replace professional medical advice, diagnosis, or treatment from a qualified doctor or pharmacist. If you have any questions about your symptoms or medication, always consult a doctor or pharmacist first.
References
- StatPearls — Metformin. Corcoran C, Jacobs TF. NCBI Bookshelf. Updated August 2023.
- Sanchez-Rangel E, Inzucchi SE. "Metformin: clinical use in type 2 diabetes." Diabetologia. 2017.
- Flory JH, et al. "Recommendations for Practical Use of Metformin, a Central Pharmacological Therapy in Type 2 Diabetes." Clinical Diabetes. 2022.
- Metformin — NHS UK.
- Metformin (Oral Route) — Mayo Clinic.
- Metformin — Drugs.com. Updated 2024.
- Metformin — DrugBank Online.
- Metformin — MedlinePlus, U.S. National Library of Medicine.
Frequently Asked Questions
Same active ingredient (Metformin HCl). Glucophage is the originator brand by Merck at a higher price. Generic Metformin is a quality-equivalent medication, Thai FDA approved at a more accessible price. There is no difference in blood sugar control efficacy.
Diarrhoea is the most common side effect, especially early on. Solutions: always take with food, start at a low dose and gradually increase, avoid stomach-irritating foods. If symptoms persist after 2–4 weeks, consult your doctor about switching to the XR (Extended Release) formula which has fewer GI side effects.
Metformin is not a weight loss drug per se, but it does not cause weight gain (unlike some other diabetes medications) and may help reduce weight slightly by 1–3 kg due to reduced appetite. For significant weight loss, consult your doctor about medications specifically designed for that purpose.
Generic medications contain the same active ingredient as the originator, certified by the Thai FDA for equivalent quality, safety, and efficacy. They may differ in excipients, colour, flavour, or tablet shape, but the active ingredient works the same. Generics are much more affordable as they don't bear R&D costs.
Yes. You must stop Metformin at least 48 hours before and after contrast media injection (e.g., CT scan with dye). Contrast may temporarily worsen kidney function, and with reduced kidney function, Metformin clearance slows down, increasing the risk of lactic acidosis. Always inform your doctor about Metformin use before any procedure.
Always take with food, such as with breakfast and dinner. Taking with food significantly reduces diarrhoea and nausea. Take at the same time every day to maintain consistent blood levels. Never take on an empty stomach.
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