Simplovir 200 mg/5 ml Oral Suspension is an antiviral medication manufactured by Incepta Pharmaceuticals Ltd. containing Acyclovir, a synthetic purine nucleoside analogue effective against herpes simplex virus types 1 and 2, as well as varicella-zoster virus. It is indicated for the treatment of various herpesvirus infections, including initial and recurrent genital herpes, herpes labialis (cold sores), and herpes zoster (shingles), particularly in immunocompromised patients. Acyclovir works by inhibiting viral DNA synthesis, thereby limiting viral replication. The oral suspension formulation allows for easier administration in patients who may have difficulty swallowing tablets, such as children or the elderly. The typical dosage regimen involves administering 200 mg five times daily for 5 to 10 days, depending on the severity of the infection and the patient's immune status. Common side effects may include gastrointestinal disturbances, headache, and dizziness. It is essential to follow the prescribed dosage and consult a healthcare provider before starting treatment to ensure its appropriateness and safety.