This study is testing a new treatment called **LMN-201** to prevent **C. difficile infection (CDI)** from coming back. C. difficile is a type of bacteria that can cause diarrhea and other stomach problems. The study will check if LMN-201 is safe and works well for people who have just been diagnosed with CDI and are taking standard antibiotics.
*Eligibility*: Participants must be 18 or older, have had 3 or more loose bowel movements a day recently, and be on or planning to take antibiotics for CDI. Participants must agree to follow study rules and have a smartphone.
*Not eligible*: People with severe CDI, other gut disorders with diarrhea, or those needing more than 28 days of antibiotics are not eligible. Pregnant or breastfeeding women and those with certain medical conditions or treatments in the past 3 months may also be excluded.
- The study involves taking medicine and attending visits.
- Participants will receive compensation for their time.
- Some side effects or risks may occur, so it's important to discuss with your doctor.