Inclusion Criteria:  Healthy male subjects Age 18 -45 years Body Mass Index (BMI): above or equal 18.5 and below or equal 29.9 kg / m²  Exclusion Criteria:  Incompletely cured pre-existing diseases for which it can be assumed that the absorption, distribution, metabolism, elimination and effects of the study drugs will not be normal Febrile illness (temperature ≥38.0 oC) within 4 weeks prior to admission to the ward A history of relevant diseases of vital organs, of the central nervous system or other organs A history of relevant smell and / or taste disorders Relevant diseases within the last 4 weeks prior to the first study intervention administration Known gastro-intestinal disorders (e.g. stomach ulcers, duodenal ulcers, gastro-intestinal bleeding) or inflammatory bowel disease (e.g. Crohn's disease, ulcerative colitis) Regular use of medicines in the 4 weeks prior to first dosing Regular use of therapeutic or recreational drugs (e.g. carnitine products, anabolics, high-dose vitamins) Use of medication (prescription or over the counter) or herbal products within 2 weeks before first study intervention administration which could oppose the study objectives or which might influence them Criteria which in the opinion of the investigator preclude participation for scientific reasons, for reasons of compliance, or for reasons of the participant's safety