The purpose of this study is to investigate the pharmacokinetic drug interaction between Solifenacin and Tamsulosin in healthy male volunteers.

A randomized, open-label, single dose, two-way crossover study

Inclusion Criteria:

• 19~45 years healthy male
• Body weight is over 55kg, BMI measurement 18.0kg/m^2~ 27.0kg/m^2
• Signed informed consent form from to participate voluntarily and to comply with the trial requirements.
• Researchers determined suitable volunteers through physical examination, laboratory tests

Exclusion Criteria:

• History of clinically significant liver, kidneys, nervous system, immune system, respiratory, endocrine disorders or tumor or blood disorders, cardiovascular diseases, mental disorders (mood disorders, obsessive-compulsive disorder, etc.)
• Sitting SBP>150mmHg or <100mmHg, sitting DBP>100mmHg or <60mmHg, after 3 minutes break
• An impossible one who participants in clinical trial by investigator's decision including laboratory test result or another reason.
• Have a gastrointestinal disease history that can affect drug absorption (Crohn's disease ulcers, etc) or surgery (except simple appendectomy or hernia surgery)
• History of drug abuse
• Positive urine drug screening
• Administrated investigational product in a previous clinical trial within 90 days of the first administration day in this study.
• Donated blood within 60 days prior to the first administration day in this study.