Inclusion Criteria:
* Adult males 20 to 40 years at screening.
* body weight ≥ 45kg and within ± 20% of the ideal body weight : Ideal body weight = (height \[cm\] - 100) x 0.9
* Be able to collect blood for study and visit for follow-up period
* Subject who agrees to participate in this study and give written informed consent
Exclusion Criteria:
* Have history of significant hepatic, renal, gastrointestinal, pulmonary, musculoskeletal, endocrine, neuropsychiatric, hematologic, cardiovascular diseases
* Have a gastrointestinal disease(ex : Crohn's disease, gastrointestinal ulcer)or surgery(except for Appendectomy, Hernia repair) affected the absorption of medications
* Inappropriate in Screening test (interview, vital sigh, BP, 12-lead ECG, laboratory test etc.)
* Hypersensitivity reactions to drugs or clinically significant hypersensitivity reactions in the history of amlodipine or valsartan
* drug abuse, or have a history of drug abuse showed a positive for the screening test on urine : amphetamine, barbiturate, cocaine, opiates, benzodiazepines, cannabinoids, methadone etc.
* Subject who takes herbal medicine within 30 days, ethical drug within 14 days, OTC within 7 days before the beginning of administration of investigational drug
* Unusual diet affected the absorption, distribution, metabolism, excretion of medications
* Subject who treated with any investigational drugs within 60 days before the administration of investigational drug
* Previously donate whole blood within 60 days or component blood within 30 days or transfusion within 30 days
* Subject who takes inhibitors and inducers of drug metabolizing enzyme (Barbiturates etc.) within 30days
* Subject who have taken habitually caffeine (caffeine \> 5 units/day)
* Subject who have drunken habitually (alcohol \> 21 units/week, 1 unit = pure alcohol 10ml)or who are unable to quit drinking during this study or smoker
* positive for Hepatitis B, Hepatitis C, HIV or Syphilis
* Blood Pressure is not in the range of "140 \> sitting SBP ≥ 90mmHg, 90 \> sitting DBP ≥ 60mmHg"
* Pulse rate is not in the range of "95 \> sitting Pulse Rate ≥ 45bpm (beats per minute)"
* AST, ALT, total bilirubin over twice of reference range
* Subjects deemed ineligible by investigator based on other reasons