The objective of the current study is to investigate safety, tolerability, and pharmacokinetics of BI 201335 ZW following administration of single rising doses from 5 mg to 1500 mg. In addition Two stage intra-subject bioavailability comparison of 600 mg BI 201335 ZW as a liquid formulation given with and without food.

Inclusion Criteria:

• Healthy males according to the following criteria based upon a complete medical history, including the physical examination, vital signs ((blood pressure (BP), pulse rate (HR)), 12-lead electrocardiogram (ECG), clinical laboratory tests
• Age ≥18 and Age ≤55 years
• BMI ≥18.5 and BMI ≤29.9 kg/m2 (Body Mass Index)
• Signed and dated written informed consent prior to admission to the study in accordance with Good Clinical Practice (GCP) and the local legislation
• Willingness to abstain from alcohol from screening period until conclusion visit

Exclusion Criteria:

• Any finding of the medical examination (including blood pressure, pulse rate and ECG) deviating from normal and of clinical relevance
• Any evidence of a clinically relevant concomitant disease
• History or current gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunologic, hormonal disorders, including a clinical history of viral hepatitis, or serological evidence of active Hepatitis B or Hepatitis C infection
• History of orthostatic hypotension, fainting spells and blackouts
• Diseases of the central nervous system (such as epilepsy) or psychiatric disorders or neurological 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
• 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 the trial
• Participation in another trial with an investigational drug within 2 months prior to administration or during the trial
• Smoker (> 10 cigarettes or 3 cigars or 3 pipes/day) or inability to refrain from smoking on trial 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 and of clinical relevance
• History of any familial bleeding disorder