- Diabetes mellitus, Heart diseases, Kidney diseases, hypertension, asthma, Liver diseases, Chronic pancreatitis, or identified risk or known history of acute pancreatitis, Known cholelithiasis without cholecystectomy, ASAT and/or ALAT > 1.3 times ULN, Gastric or peptic ulcer or intestinal diseases, Musculoskeletal diseases or increased CK > 1.0 times ULN, History of neoplasm, Mental illness, Regular user of sedatives, hypnotics, tranquillisers or any other addictive agents or who are known to be prone to alcohol abuse (i.e. history or evidence of acute abuse), or alcohol intake >14 units per week (unit = ½ pint of beer, 1 glass of wine, 2,5 cl standard spirits), or heavy smokers (>10 cigarettes/day), or excessive drinker of tea, coffee and/or beverages containing caffeine (>8 cups/day), Blood donor with recent donation (in the three months preceding the initiation of the study) or would make blood donations during the study, Blood transfusion or administration of blood-derived products, in the year preceding the study.