This trial is conducted in the United States of America (USA). The aim of this trial is to compare repaglinide and metformin as co-administered tablets and as a combination tablet.

Inclusion Criteria:

• Healthy male and female volunteers (female not pregnant, lactating or breastfeeding)
• BMI (Body Mass Index) between 19-29 kg/m^2, both inclusive
• Fasting plasma glucose from 70-115 mg/dl
• Subject is judged to be in good health on the basis of their medical history, physical examination, ECG (electrocardiogram), and routine laboratory data

Exclusion Criteria:

• Any clinically significant disease history, in the opinion of the Investigator, of systemic or organ disease
• Clinically significant abnormalities on pre-study clinical examination or any laboratory measurements during screening
• Positive results on screening for Hepatitis B surface antigen, Hepatitis C antibody and HIV (human immunodeficiency virus) antibody
• Positive results on the drug abuse/alcohol screen
• Any regular use of prescription or nonprescription drugs, including mega-vitamin or herbal supplement regimens, other than contraceptives, that cannot be stopped at least 1 week prior to Visit 2 (trial product dose administration) and for the duration of the study
• Subject is currently a smoker (more than one cigarette per day or equivalent)
• Use of grapefruit or grapefruit juice within 7 days of trial product dose administration
• Blood donation, surgery or trauma with significant blood loss (500 mL) within the last 2 months prior to dosing