Drug Class: Anti-Diabetic Combination — DPP-4 Inhibitor + Biguanide | Form: Oral Tablet | Prescription Status: Prescription Only (Rx) — DRAP Registered
What is Gvia-M Tablet 50mg/1000mg?
Gvia-M Tablet 50mg/1000mg is the highest-strength combination of Sitagliptin 50mg and Metformin Hydrochloride 1000mg. It is used to control blood sugar levels (بلڈ شوگر) in adults with type 2 diabetes (ذیابیطس ٹائپ 2) who need the strongest level of glucose control from this combination medicine. It is prescribed when lower strengths of Gvia-M — 500mg or 850mg Metformin — or either medicine used alone are no longer sufficient to keep blood sugar within a safe and healthy range. The 1000mg Metformin dose is the maximum standard single dose and provides the strongest available Metformin effect, combined with Sitagliptin's meal-time insulin-stimulating action. Together they address blood sugar from multiple directions — making Gvia-M 50mg/1000mg one of the most comprehensive oral diabetes treatments available. It must only be taken exactly as prescribed by your doctor.
What is Gvia-M Tablet 50mg/1000mg Used For?
Gvia-M Tablet 50mg/1000mg is approved for the following:
- Type 2 Diabetes Mellitus — Inadequate Control on Lower-Dose Medicines — for patients whose blood sugar remains uncontrolled on Metformin alone, Sitagliptin alone, or lower strengths of Gvia-M (میٹفارمن یا سیٹاگلپٹن سے مکمل کنٹرول نہ ہونے پر)
- Maximum-Dose Metformin Combination Therapy — providing the full 1000mg Metformin dose alongside Sitagliptin in a single convenient tablet
- Adjunct to Diet and Exercise — used alongside healthy eating and physical activity when lifestyle measures alone are insufficient
- Add-On Combination Therapy — used with other diabetes medicines such as sulphonylureas or insulin when further blood sugar control is needed
- HbA1c Reduction — achieving meaningful reductions in HbA1c — the key measure of long-term blood sugar control over 2 to 3 months
- Prevention of Long-Term Diabetes Complications — sustained blood sugar control at this level reduces the risk of serious complications including kidney disease, nerve damage, eye problems, and cardiovascular disease
How Does Gvia-M Tablet 50mg/1000mg Work?
Gvia-M 50mg/1000mg controls blood sugar through two powerful and complementary mechanisms — with the maximum 1000mg Metformin dose delivering the strongest available effect from this medicine:
Sitagliptin 50mg — DPP-4 Inhibitor: After eating, the gut releases hormones called incretins — mainly GLP-1 and GIP — that signal the pancreas to produce insulin and tell the liver to stop releasing extra sugar. An enzyme called DPP-4 rapidly breaks these hormones down before they can fully do their job. Sitagliptin blocks the DPP-4 enzyme, keeping incretin hormones active for longer — resulting in more insulin being released when blood sugar rises after a meal. This effect is glucose-dependent — meaning extra insulin is only triggered when blood sugar is already elevated. This significantly reduces the risk of dangerous low blood sugar (hypoglycaemia — ہائپوگلیسیمیا) compared to other diabetes medicines that stimulate insulin regardless of blood sugar level.
Metformin Hydrochloride 1000mg — Biguanide: At the maximum 1000mg dose, Metformin delivers its strongest action across three critical areas. First, it powerfully suppresses the liver's excessive sugar production between meals — a major cause of high fasting blood sugar in type 2 diabetes. Second, it significantly improves the body's sensitivity to insulin — helping muscle and fat cells absorb and use glucose more efficiently, directly targeting insulin resistance (انسولین کے خلاف مزاحمت) which is the underlying problem in type 2 diabetes. Third, it reduces the rate at which sugar is absorbed from food in the digestive system — helping prevent sharp post-meal blood sugar spikes. The 1000mg dose achieves the maximum glucose-lowering benefit of Metformin while remaining within the safe daily dosing range when taken twice daily.
Dosage and Administration
⚠️ Always take this medicine exactly as your doctor prescribed. Never change your dose without consulting your doctor. Always take with meals — this is especially important with the 1000mg Metformin dose to minimise stomach side effects. Regular blood sugar and kidney function monitoring is essential throughout treatment.
| Indication | Usual Adult Dose | Frequency |
|---|---|---|
| Inadequate Control on Lower-Dose Gvia-M or Metformin Alone | 1 tablet (Sitagliptin 50mg / Metformin 1000mg) | Twice daily with meals |
| Add-On to Sulphonylurea or Insulin | 1 tablet (50mg/1000mg) | Twice daily with meals — other medicine doses may be adjusted |
| Step-Up from Gvia-M 50mg/850mg | 1 tablet (50mg/1000mg) | Twice daily with meals — as directed by doctor |
- Always take with food — taking with morning and evening meals significantly reduces nausea and stomach discomfort from the 1000mg Metformin dose
- Swallow the tablet whole with a full glass of water — do not crush, break, or chew
- Take at the same times every day for consistent blood sugar control
- Do not skip doses — missing doses can cause blood sugar levels to rise significantly
- Continue diet, exercise, and all lifestyle changes alongside this medicine at all times — medicine alone is not sufficient
- Your doctor will check blood sugar, HbA1c, and kidney function regularly throughout treatment
- Inform your doctor immediately before any surgery, medical procedure, or investigation involving contrast dye — Metformin must be temporarily stopped in these situations
- If you become seriously ill with vomiting, diarrhoea, or severe dehydration — contact your doctor immediately as Metformin may need to be paused
Active Ingredients
| Ingredient | Strength per Tablet | Role |
|---|---|---|
| Sitagliptin | 50mg | DPP-4 inhibitor — stimulates insulin release after meals in a glucose-dependent manner |
| Metformin Hydrochloride | 1000mg | Biguanide — maximum-dose liver glucose suppression, insulin sensitivity improvement, and reduced glucose absorption |
Who Should NOT Use Gvia-M Tablet 50mg/1000mg?
Do not take this medicine if you:
- Are allergic to Sitagliptin, Metformin, or any other ingredient in this tablet
- Have type 1 diabetes — this medicine is only for type 2 diabetes
- Have diabetic ketoacidosis — a serious diabetes emergency requiring immediate insulin treatment
- Have severe kidney disease or kidney failure (گردے کی شدید ناکامی) — Metformin at 1000mg is strictly contraindicated due to serious risk of lactic acidosis
- Have severe liver disease or liver failure
- Have heart failure or any condition causing reduced oxygen supply to the body
- Are about to have surgery requiring general anaesthesia — Metformin must be stopped beforehand
- Are scheduled for a procedure involving iodinated contrast dye — Metformin must be stopped before and 48 hours after
- Are pregnant — diabetes in pregnancy requires specialist management, usually with insulin
- Are under 18 years of age — not approved for use in children or adolescents
Tell your doctor before use if you have:
- Any degree of kidney impairment — kidney function (eGFR) must be checked before starting and monitored regularly — the 1000mg dose requires adequate kidney function to be safely cleared from the body
- Any liver disease — even mild liver problems significantly increase the risk of lactic acidosis with high-dose Metformin
- A history of pancreatitis (لبلبے کی سوزش) — DPP-4 inhibitors including Sitagliptin have been associated with pancreatitis in rare cases
- Heart disease, heart failure, or recent heart attack
- Regular alcohol consumption — alcohol combined with 1000mg Metformin significantly increases the risk of lactic acidosis
- If you are over 65 years of age — kidney function must be checked more frequently as it naturally declines with age and affects Metformin clearance
- If you are on a very low calorie diet, planning to fast, or have reduced food intake — blood sugar management will need careful adjustment
Side Effects
Like all medicines, Gvia-M Tablet 50mg/1000mg can cause side effects. Not everyone will experience them. Gastrointestinal side effects are more common at this higher Metformin dose — particularly when starting treatment — but usually improve significantly within the first few weeks.
Common Side Effects (relatively frequent):
- Nausea (متلی) — most common side effect of the 1000mg Metformin dose — taking with food reduces this considerably
- Diarrhoea or loose stools (دست) — usually improves after 2 to 4 weeks as the body adjusts to the higher dose
- Stomach discomfort, bloating, or cramping (پیٹ میں بے آرامی) — most noticeable in the early weeks of treatment
- Loss of appetite — usually temporary
- Metallic taste in the mouth — associated with Metformin
- Upper respiratory tract infection — runny nose or sore throat — associated with Sitagliptin
- Headache (سردرد)
- Indigestion or acid reflux (بدہضمی)
Serious Side Effects (less common — seek medical help immediately):
- Lactic Acidosis — a rare but potentially life-threatening build-up of lactic acid in the blood — the risk is at its highest with the 1000mg Metformin dose in vulnerable patients. Signs include severe muscle pain or cramps, extreme weakness, difficulty breathing, stomach pain, vomiting, feeling unusually cold, dizziness, or slow or irregular heartbeat. Stop the medicine and go to hospital immediately — this is a medical emergency (یہ ایک طبی ہنگامی صورتحال ہے)
- Pancreatitis — severe and persistent stomach pain spreading to the back with or without vomiting — stop the medicine immediately and seek emergency help
- Hypoglycaemia (Low Blood Sugar) — most likely when combined with a sulphonylurea or insulin. Signs include shaking, sweating, confusion, rapid heartbeat, and extreme hunger (بلڈ شوگر کا خطرناک حد تک گر جانا) — treat immediately with fast-acting sugar
- Severe Allergic Reaction — sudden rash, swelling of the face, lips, or throat, difficulty breathing — seek emergency help immediately
- Severe Skin Reactions — blistering or widespread peeling of the skin — very rare but serious — seek emergency help immediately
- Severe Joint Pain — disabling joint pain reported with DPP-4 inhibitors — inform your doctor if unusual joint pain develops
- Signs of Kidney Problems — significantly reduced urination, leg or ankle swelling — inform your doctor immediately
If you notice any serious side effects, stop taking the medicine and go to the nearest hospital or emergency immediately.
Drug and Food Interactions
Tell your doctor about ALL medicines you are currently taking. Gvia-M Tablet 50mg/1000mg may interact with:
| Medicine / Substance | Possible Effect |
|---|---|
| Insulin or Sulphonylureas (e.g., Glibenclamide, Glimepiride, Glipizide) | Significantly increases risk of hypoglycaemia — sulphonylurea or insulin dose will likely need to be reduced |
| Iodinated contrast dye (CT scans, angiography, X-ray procedures) | Metformin must be stopped before and 48 hours after — serious risk of acute kidney injury and lactic acidosis |
| NSAIDs (e.g., Ibuprofen, Diclofenac, Naproxen) | Can reduce kidney function and cause 1000mg Metformin to accumulate dangerously — use with extreme caution |
| Diuretics — water tablets (e.g., Furosemide, Hydrochlorothiazide) | May affect kidney function and Metformin clearance — monitor kidney function and blood sugar closely |
| ACE inhibitors / ARBs (e.g., Lisinopril, Losartan, Valsartan) | May affect kidney function — monitor blood sugar and kidney function carefully |
| Corticosteroids (e.g., Prednisolone, Dexamethasone) | Raise blood sugar significantly — dose adjustment of diabetes medicines very likely needed |
| Beta-blockers (e.g., Atenolol, Propranolol, Bisoprolol) | May mask the warning signs of low blood sugar — monitor blood sugar more frequently |
| Cimetidine (stomach medicine) | May increase Metformin blood levels — increased risk of side effects at 1000mg dose |
| Digoxin (heart medicine) | Metformin may slightly increase Digoxin blood levels — monitor |
| Topiramate or Zonisamide (epilepsy medicines) | May increase risk of lactic acidosis when combined with high-dose Metformin |
| Alcohol (شراب) | Must be completely avoided — alcohol combined with 1000mg Metformin carries a serious and significantly increased risk of lactic acidosis — also unpredictably affects blood sugar control |
| Other diabetes medicines | Combined use requires careful blood sugar monitoring and dose adjustments — always inform your doctor |
Always inform your doctor about all medicines, vitamins, herbal products, or dietary supplements you are taking.
Storage Instructions
- Store below 25°C in a cool, dry place
- Keep away from direct sunlight and moisture
- Keep out of reach of children (بچوں کی پہنچ سے دور رکھیں)
- Do not use after the expiry date printed on the pack
- Do not store in the bathroom or near a kitchen sink
- Keep tablets in their original packaging until use
Frequently Asked Questions
What is Gvia-M 50mg/1000mg and how is it different from the other Gvia-M strengths?
All three strengths of Gvia-M — 50mg/500mg, 50mg/850mg, and 50mg/1000mg — contain the same two medicines, Sitagliptin and Metformin, working in the same way. The only difference is the Metformin dose. Gvia-M 50mg/1000mg contains the highest Metformin dose — 1000mg per tablet — providing the strongest glucose-lowering effect from Metformin available in a single tablet. It is prescribed when lower strengths no longer provide sufficient blood sugar control.
Why has my doctor prescribed the 1000mg strength instead of the 850mg?
Your doctor has determined that your blood sugar or HbA1c levels are not adequately controlled on the 850mg strength. The 1000mg dose provides the maximum standard glucose-lowering benefit of Metformin — particularly in suppressing the liver's excess sugar production and improving insulin sensitivity. Your doctor will continue to monitor your blood tests and will adjust your overall diabetes treatment plan based on your response.
Is lactic acidosis more of a concern with the 1000mg dose?
The absolute risk of lactic acidosis remains low for patients with normal kidney and liver function. However, at the 1000mg dose — particularly twice daily — it is more important than ever to attend all kidney function monitoring appointments, stay well hydrated, avoid alcohol completely, and stop the medicine immediately if you become seriously ill with vomiting or dehydration. Report any symptoms of severe muscle pain, difficulty breathing, or extreme weakness to a doctor immediately.
What should I do if I experience severe stomach problems when starting 1000mg? Gastrointestinal side effects are more common with the 1000mg Metformin dose — particularly in the first 2 to 4 weeks. Always take the tablet with a full meal — not just a snack. Drink plenty of water throughout the day. Avoid fatty, spicy, or heavy foods when first starting. If the stomach side effects are severe, persistent beyond 4 weeks, or stopping you from eating properly, contact your doctor — they may consider a slower dose increase or an alternative formulation.
How do I know if my blood sugar is too low (hypoglycaemia)?
Low blood sugar symptoms include shaking or trembling, sudden sweating, feeling very hungry, racing heartbeat, dizziness, pale skin, and confusion. This is more likely if you are also taking a sulphonylurea or insulin alongside Gvia-M. Always carry a fast-acting source of sugar — glucose tablets, fruit juice, or regular soft drinks — to treat low blood sugar quickly. Inform your family members about the signs and treatment of low blood sugar so they can help if needed.
Can I take Gvia-M 50mg/1000mg if my kidneys are not fully healthy?
Gvia-M 50mg/1000mg must not be used in patients with severe kidney disease or kidney failure. In patients with mild-to-moderate kidney impairment, your doctor will carefully check your eGFR (kidney function score) before prescribing and will monitor it regularly during treatment. If your kidney function declines during treatment, your doctor may need to switch you to a lower dose or a different medicine. Never continue taking this medicine without regular kidney function monitoring.
⚕️ Medical Disclaimer: This product description is for informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified doctor or pharmacist before starting, stopping, or changing any medication. This product is a prescription medicine — it must only be used under the supervision of a licensed healthcare professional.
DRAP Registered | Prescription Required (Rx) | For use under medical supervision only
