**Study Overview:** This study looks at how a new drug, "BR3006," works in the body and if it's safe. Researchers compare it to taking each part of the drug separately. Forty healthy adults will take part, and they must be over 19 years old. The study checks how the drug is absorbed when taken with food. Participants will take one version of the drug in one period and the other version in the next, switching halfway through the study. This is called a "crossover" study. *Key Points:* - **Duration:** The study involves two different periods where participants will take the drug. - **Visits:** Participants will need to visit the study site for tests (like blood tests and ECGs) to ensure safety. - **Risks:** Possible risks include side effects from the drug, but participants will be informed of these before starting. Participants must not have taken part in another drug study within the last six months and should not have certain medical conditions. Women who are pregnant or nursing cannot join the study. All volunteers must understand the study and agree in writing before participating.