Januvia
Generic Name: Sitagliptin
Uses & Medical Indications
Adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus.
Type 2 Diabetes Mellitus
Work Mechanism & Pharmacology
Patient Overview of Work Mechanism
Januvia protects the body's natural incretin gut hormones from breakdown, allowing insulin to be released only when blood sugar rises after eating.
Clinical Mechanism of Action (MoA)
Potent, selective, competitive dipeptidyl peptidase-4 (DPP-4) inhibitor. Prolongs circulating half-lives of intact glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), stimulating glucose-dependent insulin secretion from beta cells while curbing excessive glucagon secretion from alpha cells.
Dosage & Administration Guidelines
100 mg orally once daily with or without food.
Safety and effectiveness not established in pediatric patients under 18.
Dose based on renal function.
100 mg daily.
eGFR 30 to <45: 50 mg daily. eGFR <30: 25 mg daily.
No dose adjustment for mild to moderate hepatic impairment.
Side Effects & Safety Warnings
Upper respiratory tract infection, nasopharyngitis, headache.
Pancreatitis, severe arthralgia, bullous pemphigoid, heart failure.
History of serious hypersensitivity reaction to sitagliptin.
Risk of acute pancreatitis; monitor for persistent severe abdominal pain.
Interactions (Drugs, Food & Alcohol)
Digoxin (slight increase in digoxin concentrations), insulin/sulfonylureas (increased hypoglycemia risk).
None significant.
Limit alcohol consumption to avoid hypoglycemia.
Pregnancy & Breastfeeding Safety
Use during pregnancy only if clearly needed.
Caution advised; unknown if excreted in human milk.
Patient Counseling & Practical Advice
Report severe persistent stomach pain immediately.
Take as soon as remembered. Do not double up doses.
HbA1c, renal function, signs/symptoms of pancreatitis.
Related Medicines in Antidiabetic (DPP-4 Inhibitor)
When to Seek Urgent Medical Attention
Seek immediate emergency medical care (call emergency services or proceed to the nearest emergency department) if you experience signs of a life-threatening allergic reaction (anaphylaxis: facial, lip, tongue, or throat swelling causing airway obstruction), severe cutaneous blistering with skin peeling, sudden intense chest pain, or symptoms of overdose.
Content for Januvia was synthesized from standardized public health monographs, official pharmacopoeias, and health authorities:
- Central Drugs Standard Control Organization (CDSCO) — National List of Essential Medicines
- World Health Organization (WHO) — Model List of Essential Medicines
- Indian Pharmacopoeia Commission (IPC) — Indian Pharmacopoeia Drug Monographs
- National Health Service (NHS) — Medicines A to Z Clinical Guidelines
The information provided on this website is for educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition.