Letermovir is a medication that has been approved by the FDA for the prevention of cytomegalovirus (CMV) infection in adult patients who have undergone hematopoietic stem cell transplantation. CMV is a common virus that can cause serious complications in immunocompromised individuals, such as those who have received a stem cell transplant.

Letermovir works by inhibiting the replication of CMV, thereby reducing the risk of infection in transplant patients. It is typically administered orally once daily, either with or without food. The dosage may vary depending on the patient’s kidney function and other factors, so it is important to follow the prescribing physician’s instructions carefully.

As with any medication, there are potential side effects associated with letermovir. These may include nausea, diarrhea, headache, and fatigue. It is important to report any unusual or severe side effects to your healthcare provider promptly.

It is also important to inform your healthcare provider about any other medications or supplements you are taking, as they may interact with letermovir. This includes over-the-counter medications, herbal supplements, and vitamins.

Overall, letermovir is an important tool in the prevention of CMV infection in transplant patients. By following your healthcare provider’s instructions and monitoring for any potential side effects, you can help ensure the success of your treatment and reduce the risk of complications associated with CMV infection. If you have any questions or concerns about letermovir, do not hesitate to discuss them with your healthcare provider.