Letermovir oral/injection and Prevnar Intramuscular

• Generic Name: letermovir
• Dosage Forms: n.a.
• Other Brand Names: Prevymis

Letermovir is an antiviral medicine used to help prevent cytomegalovirus (CMV) infection after a stem cell (bone marrow) transplant from a donor. Letermovir is for use in adults who are seropositive for CMV. Seropositive means that the virus is in your blood even if you do not show any symptoms of infection.

A CMV-seropositive person is at risk for "reactivation" of the virus if the immune system becomes weak. While normally treatable, CMV infection can be serious in people undergoing a stem cell transplant.

Letermovir may also be used for purposes not listed in this medication guide.

• Generic Name: pneumococcal 13-valent vaccine
• Dosage Forms: n.a.
• Other Brand Names: Prevnar 13

Pneumococcal 13-valent diphtheria conjugate vaccine is an active immunizing agent used to prevent infection by pneumococcal bacteria. It works by causing your body to produce its own protection (antibodies) against the disease.

Pneumococcal infection can cause serious problems, such as pneumonia, which affects the lungs; meningitis, which affects the brain; and bacteremia, which is a severe infection in the blood. Pneumococcal infection is also an important cause of ear infections in children.

Unless otherwise contraindicated, immunization (vaccination) against pneumococcal disease is recommended for infants and young children 6 weeks to 5 years of age (prior to the 6th birthday), children 6 to 17 years of age (prior to the 18th birthday), or to adults 18 years of age and older.

For infants and young children, immunization requires 1 to 4 doses of the vaccine, depending on the age at the first dose. This vaccine can be given at the same time as other routine vaccinations.

This vaccine is to be given only by or under the supervision of your doctor.