Acyclovir

Is the active pharmaceutical ingredient (api).

Treatment of initial and recurrent episodes of genital herpes (herpes simplex virus type 2 infection)

Treatment of herpes simplex virus type 1 infections (oral herpes, cold sores)

Treatment of varicellazoster virus infections (chickenpox and shingles)

Suppression of recurrent herpes simplex virus infections to reduce the frequency of outbreaks

Treatment of severe cases of chickenpox in immunocompromised patients.

Kayvir 200mg Tablet (Acyclovir) is a nucleoside analogue that inhibits viral DNA polymerase. It's converted into acyclovir monophosphate by viral thymidine kinase, a crucial step that is absent or less active in human cells. This leads to selective inhibition of viral DNA replication without significantly affecting human DNA synthesis.

Store at room temperature (20-25°C), protect from light and moisture. Keep out of reach of children. Discard any unused medication according to local guidelines.

Dosage varies greatly depending on the condition being treated, the patient's age, weight and kidney function.

Always follow your doctor's or pharmacist's instructions.

Acyclovir is available in various forms including tablets, capsules, creams, ointments, and intravenous infusions.

Kidney problems (especially with high doses or impaired kidney function)

Headache

Nausea

Vomiting

Diarrhea

Fatigue

Rash

Itching

Alcohol Consumption

No significant interaction is generally reported, but excessive alcohol intake should be avoided as it can affect overall health.



Driving or operating Machinery

Drowsiness or other neurological effects are possible; avoid driving or operating machinery if affected.



Pregnant & Breastfeeding Women

Use only if the potential benefits outweigh the risks; consult your doctor.



Children

Dosage adjustments are necessary based on age and weight. Consult a pediatrician.



Kidney

Dosage adjustments are necessary in patients with kidney impairment; regular kidney function monitoring may be required.



Liver

Generally well-tolerated, but liver function monitoring may be required in patients with pre-existing liver disease or receiving high doses.

Your doctor or pharmacist

The prescribing information leaflet supplied with the medicine

Reputable medical websites (e.g., Mayo Clinic, NHS)