Valcyte is an antiviral drug mainly used for the treatment and prevention of cytomegalovirus infection. Its dosage needs to be adjusted according to the patient's kidney function, weight, and special population conditions, and attention should be paid to drug interactions and adverse reaction monitoring.

1. Indications and efficacy

(1) Treatment: Used for the treatment of cytomegalovirus (CMV) retinitis in immunocompromised patients.

(2) Prevention: Used for preventing CMV infection in high-risk organ transplant patients.

2. Usage and dosage

(1) Standard dose: The recommended dose for adults is 900mg once daily, which can be taken with food to improve bioavailability.

(2) Renal function adjustment: The dosage should be adjusted according to the creatinine clearance rate, and the specific plan should refer to the product manual.

3. Medication for special populations

(1) Pregnancy: May cause harm to the fetus, only used when potential benefits outweigh risks.

(2) Breastfeeding period: Medication can be secreted into breast milk, it is recommended to suspend breastfeeding during treatment.

(3) Children: Safety and efficacy have not been fully established and should be used with caution.

(4) Older adults: The dosage may need to be adjusted based on kidney function.

4. Precautions

(1) Monitoring requirements: Regular monitoring of blood routine, renal function, and electrolyte levels is required during the treatment period.

(2) Drug interactions: There are interactions with multiple drugs, especially immunosuppressants.

(3) Adverse reactions: common anemia, neutropenia, gastrointestinal reactions, etc.

5. Storage conditions

(1) Temperature: Store at 15-30 ° C.

(2) Moisture proof: Keep the packaging intact and avoid moisture.