The present invention comprises a synergistic combination of nicotinic acid and meldonium characterized by increased efficiency in treating disorders, including platelet aggregation, dyslipidemia, hyperlipidemia, atherosclerosis, coronary heart disease as chosen from the group of angina pectoris and myocardial infarction, transient and permanent ischemic attack including cerebrovascular accident and stroke and peripheral arterial occlusive disease, and by reduced flushing effect and/or increase of blood glucose levels, comprising as active ingredients nicotinic acid or pharmaceutically acceptable salt thereof and meldonium or pharmaceutically acceptable salt thereof, effective for said purpose.