To Learn How Different Forms of Study Medicine Are Taken up Into the Blood and the Effect of Food on Study Medicine in Healthy Adults

The purpose of this study is to learn about the study medicine CTB-AVP for the treatment of severe urinary tract infections that require hospitalization. This study is seeking for: * adult male and female participants who are healthy and weigh more than 50 kg. * participants who have normal blood pressure, normal kidney and liver function * participants willing to stay away from caffeine and other medicines for the duration of the study. Participants will be required to stay in the study clinic for two weeks. All participants in this study will receive study medicine CTB-AVP by mouth one time each day on four different days. Study medicine will be given in capsules or tablets, on an empty stomach or will be taken with a meal. The study will look at the experiences of people receiving the study medicine. This will help determine if the study medicine is safe and effective.