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Januvia (Sitagliptin) + Metformin
Can you take these together?

🇺🇸 Based on FDA Data · Free
✅
No Known Interaction
Januvia (Sitagliptin) + Metformin

No drug interaction found in current databases. Always consult your pharmacist or doctor before taking medications together.

📊 Data Sources
🇺🇸FDA openFDA API — Drug interaction data sourced from the U.S. Food & Drug Administration's official drug label database (openFDA). The same data used by U.S. healthcare professionals. FDA official site →
🇰🇷MFDS DUR API (Korea) — Contraindication data from South Korea's Ministry of Food and Drug Safety (MFDS) Drug Utilization Review public API. Covers 44,000+ medications. MFDS official site →

⚕️ This information is for reference only and does not constitute medical advice. Always consult a doctor or pharmacist before taking medications.

🔍 Check Another Combination
💊 Drug Information
MedicationJanuvia
Always consult your doctor or pharmacist about Januvia interactions before combining with other medications.
Type 2 Diabetes Medication (Biguanide)Metformin(Metformin (Glucophage))

Metformin is the first-line oral medication for type 2 diabetes. It lowers blood glucose without causing significant weight gain and has a well-established cardiovascular safety profile.

🔬 How It Works

Metformin primarily reduces hepatic glucose production (gluconeogenesis) and improves insulin sensitivity in peripheral tissues. Unlike sulfonylureas, it does not stimulate insulin secretion and rarely causes hypoglycemia alone.

💡 Common Uses
  • Type 2 diabetes blood sugar control
  • Polycystic ovary syndrome (PCOS)
  • Pre-diabetes prevention
  • Insulin resistance
⚡ Side Effects
  • Nausea, vomiting, diarrhea, stomach upset (common early, usually improves)
  • Metallic taste in mouth
  • Vitamin B12 deficiency with long-term use
  • Rare but serious: lactic acidosis (with kidney impairment)
⚠ Caution: Hold before contrast imaging. Avoid heavy alcohol use. Monitor kidney function. Risk of lactic acidosis with kidney impairment.

💊 Drug Interaction Safety Guide

What is a Drug Interaction?

A drug interaction occurs when one medication affects the activity of another when taken simultaneously. This can increase or decrease the effectiveness of a drug, or cause unexpected side effects. Over-the-counter medications, supplements, and even foods can also interact with prescription drugs.

3 Types of Drug Interactions

  • Pharmacodynamic — Two drugs act on the same receptor, amplifying or canceling each other's effects
  • Pharmacokinetic — One drug affects the absorption, distribution, metabolism, or excretion of another (CYP450 enzyme interactions are common)
  • Physicochemical — Drugs bind together, reducing efficacy or forming toxic compounds

Seek Immediate Medical Attention If You Experience:

Difficulty breathing or chest painSevere dizziness or faintingUnusual bleeding or bruisingSevere nausea, vomiting, or stomach painJaundice (yellowing of skin or eyes)Severe hives or swellingSudden muscle pain or weaknessConfusion or loss of consciousness

Food & Drug Interactions

  • Grapefruit — Inhibits CYP3A4 enzymes, raising blood levels of statins, calcium channel blockers, and immunosuppressants
  • Alcohol — Interacts with most drugs including sedatives, pain relievers, and blood thinners; increases liver burden
  • Dairy & Calcium — Impairs absorption of tetracyclines, quinolone antibiotics, and thyroid medications
  • Vitamin K-rich foods (leafy greens) — Weakens warfarin's blood-thinning effect; maintain consistent daily intake

Before Taking Any Medication

  • Tell your doctor or pharmacist about all medications you take (prescription, OTC, supplements, herbal products)
  • Disclose if you are pregnant or planning to become pregnant
  • Take medications with water — avoid juice, milk, or alcohol
  • Follow dosage instructions carefully — never double a missed dose
  • Complete the full course of antibiotics even if symptoms improve
This guide provides general educational information and does not constitute medical advice. For personalized medication guidance, consult your doctor or pharmacist.
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