Letermovir oral/injection and Proquin XR

• 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: ciprofloxacin
• Dosage Forms: tablet, film coated, extended release
• Other Brand Names: Cipro, Cipro XR, Proquin XR, Cipro IV

Proquin XR (ciprofloxacin) is a fluoroquinolone antibiotic that fights bacteria in the body.

Proquin XR is used to treat simple uncomplicated bladder infections.

It is not known if Proquin XR is safe and works in treating any infections other than uncomplicated bladder infections.

Fluoroquinolone antibiotics can cause serious or disabling side effects that may not be reversible.

Proquin XR should be used only for infections that cannot be treated with a safer antibiotic.

It is also not known if this medicine is safe and works in children under 18 years of age. Children have a higher chance of getting bone, joint, or (musculoskeletal) problems while taking fluoroquinolone antibiotic medicines.

Some infections are caused by viruses rather than by bacteria. Examples include viral infections in the sinuses and lungs, such as the common cold of flu. Antibiotics including ciprofloxacin do not kill viruses.