The main objective was to investigate the effect of concurrent dosing of 10 mg ramipril and 80 mg telmisartan on the multiple-dose pharmacokinetics of telmisartan and ramipril. Therefore the relative bioavailability of telmisartan and ramipril given in combination was determined in comparison with either telmisartan or ramipril given alone.

Inclusion Criteria:

• Healthy males and females according to the following criteria based upon a complete medical history, including the physical examination, vital signs (Blood Pressure (BP), Pulse Rate (PR)), 12-lead electrocardiogram (ECG), clinical laboratory tests
• Age ≥18 and ≤55 years
• Body mass index (BMI) ≥18.5 and ≤29.9 kg/m2
• Signed and dated written informed consent prior to admission to the study in accordance with Good Clinical Practice and the local legislation

Exclusion Criteria:

• Any finding of the medical examination (including BP, PR and ECG) deviating from normal and of clinical relevance
• Any evidence of a clinically relevant concomitant disease
• Gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunological or hormonal disorders
• Surgery of the gastrointestinal tract (except appendectomy)
• Diseases of the central nervous system (such as epilepsy) or psychiatric disorders or neurological disorders
• History of relevant orthostatic hypotension, fainting spells or blackouts
• Chronic or relevant acute infections
• History of relevant allergy/hypersensitivity (including allergy to drug or its excipients)
• Intake of drugs with a long half-life (> 24 hours) within at least one month or less than 10 half-lives of the respective drug prior to administration or during the trial
• Use of drugs which might reasonably influence the results of the trial (especially unspecific inducing agents like St.John´s wort (Hypericum perforatum) or inhibitors like cimetidine) or drugs that prolong the QT/QTc interval based on the knowledge at the time of protocol preparation within 10 days prior to administration of trial drug or during the trial
• Participation in another trial with an investigational drug within two months prior to administration or during the trial
• Smoker (> 10 cigarettes or > 3 cigars or > 3 pipes/day)
• Alcohol abuse (more than 60 g/day) or inability to stop alcoholic beverages for 24 hours prior to dosing and up to the last sampling time point
• Drug abuse
• Blood donation (more than 100 mL within four weeks prior to administration of trial drug or during the trial)
• Excessive physical activities (within one week prior to administration of trial drug or during the trial)
• Any laboratory value outside the reference range that is of clinical relevance
• Inability to comply with dietary regimen of trial site
• A marked baseline prolongation of QT/QTc interval (e.g., repeated demonstration of a QTc interval >450 ms)
• A history of additional risk factors for torsade de pointes (e.g., heart failure, hyperkalaemia, hypokalemia, family history of Long QT Syndrome)
• Any history of relevant low blood pressure
• Supine blood pressure at screening of systolic <110 mm Hg and diastolic <60 mm Hg
• History of urticaria
• History of angioneurotic edema
• Hereditary fructose intolerance
• Salt and/or volume depletion

For female subjects:

• Pregnancy or planning to become pregnant during the study or within 1 months of study completion
• Positive pregnancy test
• Not willing or unable to use a reliable method of contraception such as implants, injectables, combined oral contraceptives, sterilisation, intrauterine device, double barrier method, sexual abstinence for at least 1 month, or vasectomised partner as only method of contraception for at least 6 months prior to participation in the trial, during and up to 1 month after completion/termination of the trial
• Chronic use of oral contraception containing ethinyl estradiol as the only method of contraception
• Currently lactating