Istamet

Sitagliptin · Metformin

Formulated to target type 2 diabetes mellitus to support glycemic control.

Active ingredients
Sitagliptin · Metformin
Supply
Pharmacy
Route
Oral use
Form
Film-coated tablet
Strengths
50/1000mg

Istamet details

Alternative names
Janumet
Therapeutic class
Dipeptidyl Peptidase-4 (DPP-4) Inhibitor; Biguanide Antidiabetic
Pharmacological class
DPP-4 Inhibitor; Biguanide
Minor side effects
nausea; diarrhoea; headache
Moderate side effects
upper respiratory tract infection; nasopharyngitis
Dosage forms
Film-coated tablet
Administration route
Oral use
Patient summary
formulated to target type 2 diabetes mellitus to support glycemic control.
Supply category
Pharmacist only, dispensed without a prescription
Manufacturer
Merck Sharp & Dohme
Onset Time
1–2 hours
Duration
12–24 hours
Storage instructions
Store below 25°C, away from sunlight and moisture.
Drug interactions
Alcohol; Iodinated contrast media
Age restrictions
Not indicated for use in children or adolescents.
Contraindications

hypersensitivity to sitagliptin; hypersensitivity to metformin; severe renal impairment; diabetic ketoacidosis; severe hepatic impairment

Precautions and warnings

monitor renal function regularly; risk of lactic acidosis; discontinue if symptoms of pancreatitis occur

Serious side effects

pancreatitis, requires immediate medical attention; lactic acidosis, requires immediate medical attention; anaphylaxis, requires immediate medical attention

Mechanism of action

This medicine combines two active agents that work by increasing incretin levels to stimulate insulin release after meals and by reducing glucose production in the liver, effectively lowering blood sugar levels.

Pregnancy and breastfeeding

Pregnancy: should be avoided unless clearly necessary. Breastfeeding: not recommended as components may pass into breast milk.

Where this medicine is registered

  • Singapore
  • Hong Kong
  • Thailand
  • Malaysia
  • Philippines
  • Indonesia
  • Taiwan
  • South Korea
  • Japan
  • Australia
  • New Zealand
  • UAE
  • South Africa

About Istamet

Istamet combines sitagliptin and metformin within a single tablet to help manage Type 2 Diabetes Mellitus. Also marketed internationally as Janumet, this dual-action medication manufactured by Merck Sharp & Dohme is available in strengths including 50/1000mg. Patients relying on this combination for glycaemic control often select these branded oral treatments for their consistent formulation and reliability.

Buying Istamet online

Istamet is registered across 13 markets including Taiwan, South Korea and Japan, with availability also in the UAE, Singapore and Hong Kong. For many expats and those living far from a well-stocked pharmacy, ordering this medication online provides a consistent way to maintain regular supplies. While branded versions remain common, many users also consider generic sitagliptin and metformin, much of it made in India, as a more affordable option for long-term health management.