Tolerability of BIBR 953 ZW IV and Bioavailability of BIBR 1048 Tablet and Solution in Healthy Males

Inclusion Criteria: * Healthy male subjects as determined by results of screening * Signed written informed consent in accordance with GCP and local legislation * Age ≥ 18 and ≤ 50 years * Broca ≥ - 20% and ≤ + 20% Exclusion Criteria: * Any findings of the medical examination (including blood pressure, pulse rate and ECG) deviating from normal and of clinical relevance * History or current gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunologic, hormonal disorders * History of orthostatic hypotension, fainting spells and blackouts * Diseases of the central nervous system (such as epilepsy) or psychiatric disorders * Chronic or relevant acute infections * History of * allergy/hypersensitivity (including drug allergy) which is deemed relevant to the trial as judged by the investigator * any bleeding disorder including prolonged or habitual bleeding * other hematologic disease * cerebral bleeding (e.g. after a car accident) * commotio cerebri * Intake of drugs with a long half-life (\>24 hours) within 1 month prior to administration * Use of any drugs which might influence the results of the trial within 10 days prior to administration or during trial * Participation in another trial with an investigational drug within 2 months prior to administration or during trial * Smoker (\> 10 cigarettes or 3 cigars or 3 pipes/day) or inability to refrain from smoking on study days * Alcohol abuse (\> 60 g/day) * Drug abuse * Blood donation within 1 month prior to administration or during the trial * Excessive physical activities within 5 days prior to administration or during the trial * Any laboratory value outside the clinically accepted reference range * History of any familial bleeding disorder * Thrombocytes \< 150000/µl