Aciclovir is a widely used antiviral medication that targets infections caused by herpes viruses, such as herpes simplex and varicella-zoster. The drug works by inhibiting the replication of viral DNA, thereby reducing the severity and duration of outbreaks. Aciclovir is available in tablets, capsules, and topical formulations, making it versatile for treating cold sores, genital herpes, and shingles. By interfering with the viral life cycle, it helps to alleviate pain, promote healing of lesions, and decrease the risk of transmission.

When prescribed Aciclovir for oral use, your doctor will determine the appropriate dosage based on the type of infection and your medical history. Typical doses range from 200 mg taken five times a day for cold sores to higher doses for shingles or severe infections. It’s important to complete the full course of therapy even if symptoms improve early, because stopping the medication prematurely may allow the virus to continue replicating. Aciclovir works best when taken as soon as the first signs of an outbreak appear; if you experience tingling, itching, or burning sensations, contact your healthcare provider promptly.

Potential side effects of Aciclovir include nausea, diarrhea, headache, and fatigue. Rare but serious adverse reactions can include kidney problems or allergic reactions, so it’s crucial to stay hydrated and report any unusual symptoms to your doctor. People with impaired kidney function may require dose adjustments. Aciclovir is generally safe during pregnancy, but pregnant or breastfeeding women should consult a healthcare professional before use. Avoid sexual contact while lesions are present to prevent infecting others.

To learn more about dosage instructions and detailed information on this antiviral drug, visit the Aciclovir product page. Always consult your physician or pharmacist for personalized guidance when starting any new medication.