Drug Class: DPP-4 Inhibitor + Biguanide Combination | Form: Oral Tablet | Prescription Status: Prescription Only (Rx) — DRAP Registered
What is Sitaglu Met 50/500mg Tablet?
Sitaglu Met 50/500mg is a fixed-dose combination of Sitagliptin 50mg and Metformin Hydrochloride 500mg — two well-established diabetes medicines that work through completely different mechanisms to control blood sugar more effectively than either medicine alone. Sitagliptin enhances the body's natural insulin response after meals while Metformin reduces the liver's excess glucose production and improves how the body uses insulin. Together they address multiple causes of high blood sugar in Type 2 diabetes, prescribed when a single agent is no longer sufficient and two complementary treatments are needed in one convenient tablet.
What is Sitaglu Met 50/500mg Used For?
- Type 2 diabetes mellitus — improving blood sugar control when diet, exercise, or single-agent therapy is insufficient (ذیابیطس)
- Post-meal blood sugar spikes — Sitagliptin component specifically targets glucose rises after eating
- Fasting blood sugar reduction — Metformin component reduces overnight liver glucose production
- Dual-mechanism glycaemic management — combining two separate pathways for stronger overall blood sugar control
How Does Sitaglu Met 50/500mg Work?
Sitagliptin 50mg — DPP-4 Inhibitor: Blocks the DPP-4 enzyme that normally breaks down incretin hormones (GLP-1 and GIP). By preserving these hormones, Sitagliptin stimulates insulin secretion from the pancreas only when blood glucose is elevated — making hypoglycaemia risk very low. It simultaneously suppresses glucagon, the hormone that raises blood sugar between meals.
Metformin Hydrochloride 500mg — Biguanide: Works primarily by reducing the liver's excessive glucose production (hepatic gluconeogenesis) — the main driver of elevated fasting blood sugar in Type 2 diabetes. It also improves peripheral insulin sensitivity in muscles, helping cells absorb and use glucose more effectively. Metformin does not stimulate insulin production, meaning it carries minimal hypoglycaemia risk when used without insulin or sulphonylureas.
Combined Effect: Sitagliptin targets post-meal glucose spikes while Metformin controls fasting and between-meal glucose levels — together providing comprehensive blood sugar management throughout the day.
Dosage and Administration
⚠️ Take exactly as prescribed alongside a diabetes-appropriate diet and regular exercise. Never stop without medical advice.
| Indication | Usual Adult Dose | Frequency |
|---|---|---|
| Type 2 diabetes (inadequately controlled on single agent) | 1 tablet (50mg/500mg) | Twice daily with meals |
- Always take with meals to reduce Metformin-related stomach side effects
- Swallow whole with a full glass of water
- Take at the same time each day for consistent blood sugar control
- Regular HbA1c, kidney function, and Vitamin B12 monitoring required during treatment
Active Ingredients
| Ingredient | Strength per Tablet |
|---|---|
| Sitagliptin | 50mg |
| Metformin Hydrochloride | 500mg |
Who Should NOT Take Sitaglu Met 50/500mg?
- Type 1 diabetes or diabetic ketoacidosis
- Severe kidney disease (eGFR below 30) — Metformin is contraindicated
- Severe liver disease or history of lactic acidosis
- Known allergy to Sitagliptin, Metformin, or any component of the tablet
- History of pancreatitis — Sitagliptin component requires caution
- Pregnancy or breastfeeding — consult doctor immediately
Consult your doctor before use if you have: moderate kidney disease, liver disease, heart failure, history of pancreatitis, or are scheduled for surgery or contrast imaging procedures.
Side Effects
Common:
- Nausea, stomach discomfort, or diarrhoea — significantly reduced by taking with food
- Metallic taste in the mouth — common Metformin effect, usually temporary
- Mild headache or dizziness
- Nasopharyngitis (runny nose or mild sore throat) — common DPP-4 inhibitor class effect
Serious — seek medical attention immediately:
- Lactic acidosis — rare but serious Metformin complication; symptoms include muscle pain, weakness, difficulty breathing, stomach pain, dizziness (یہ طبی ہنگامی صورتحال ہے)
- Pancreatitis — severe persistent abdominal pain radiating to the back — Sitagliptin class risk
- Severe allergic reaction — facial swelling, difficulty breathing, widespread rash or blistering
- Hypoglycaemia — when combined with insulin or sulphonylureas — shakiness, sweating, confusion
Drug Interactions
| Medicine | Interaction |
|---|---|
| Insulin / Sulphonylureas (e.g., Glibenclamide) | Increased hypoglycaemia risk — dose reduction may be needed |
| Iodinated contrast media (X-ray dye) | Metformin must be stopped before and 48 hours after contrast procedures — kidney failure risk |
| Alcohol (شراب) | Increases lactic acidosis risk from Metformin — avoid excessive alcohol |
| Digoxin | Sitagliptin may slightly increase Digoxin levels — monitoring advised |
| Corticosteroids | Raise blood sugar and reduce effectiveness of diabetes medicines |
| Diuretics (e.g., Furosemide) | May impair kidney function and increase Metformin accumulation risk |
Storage Instructions
- Store below 25°C away from moisture and direct sunlight
- Keep in original packaging until use
- Keep out of reach of children (بچوں کی پہنچ سے دور رکھیں)
- Do not use after expiry date on the pack
Frequently Asked Questions (FAQs)
Q: Can Sitaglu Met 50/500mg cause low blood sugar on its own? No — both Sitagliptin and Metformin have very low hypoglycaemia risk when used without insulin or sulphonylureas, as neither stimulates unconditional insulin release.
Q: Why must Sitaglu Met be taken with meals? The Metformin component causes nausea and stomach upset when taken on an empty stomach — taking with food significantly reduces these side effects and improves tolerability.
Q: Should I stop Sitaglu Met before a scan using contrast dye? Yes — Metformin must be stopped before any procedure using iodinated contrast dye and for 48 hours after. Always inform your radiology team that you are taking Metformin.
Q: What are the warning signs of pancreatitis I should watch for? Severe persistent upper abdominal pain radiating to the back, with nausea or vomiting — stop the medicine immediately and seek emergency medical attention if these develop.
⚕️ Medical Disclaimer: This description is for general information only and does not replace professional medical advice. Always consult your doctor or pharmacist before starting or changing this medicine. Report severe abdominal pain or breathing difficulty immediately.
DRAP Registered | Prescription Required (Rx) | Always take with meals — stop before contrast procedures — report severe abdominal pain immediately