Product Overview
Penvir is an antiviral medication containing Famciclovir as its active ingredient. As a nucleoside analogue, it specifically targets infections caused by herpes simplex virus (HSV) and varicella-zoster virus (VZV). The medication works by suppressing viral replication, thereby alleviating symptoms and shortening the duration of herpes outbreaks. Penvir is formulated as oral tablets for easy administration.
Uses
Penvir is indicated for:
- Treatment of HSV infections (genital herpes and cold sores)
- Management of shingles (herpes zoster)
- Therapy for herpes simplex encephalitis
- Prevention of recurrent genital herpes outbreaks in patients with frequent episodes
How to Use
Take Penvir tablets orally with water, either with or without food, as prescribed. The treatment duration and dosage depend on the infection type and severity. Complete the full prescribed course, even if symptoms improve earlier. For optimal results, initiate treatment at the first signs of an outbreak.
Mechanism of Action
Famciclovir, Penvir’s active component, is metabolized into penciclovir in the body. This active form inhibits viral DNA polymerase, disrupting the herpes virus’s replication process. By preventing viral multiplication and spread to healthy cells, it effectively controls infection and reduces outbreak severity and duration.
Dosage and Administration
Condition | Dosage | Duration |
---|---|---|
Genital herpes/Cold sores | 250 mg 3 times daily | 7-10 days |
Shingles | 500 mg every 8 hours | 7 days |
Suppressive therapy | 250 mg twice daily | Up to 1 year |
Benefits
- Effective against multiple herpes virus infections
- Reduces outbreak severity and duration
- Prevents recurrent genital herpes episodes
- Convenient tablet formulation
- Generally well-tolerated profile
Common Side Effects
Most frequent adverse effects include:
- Headache
- Nausea
- Diarrhea
- Abdominal discomfort
These typically resolve without intervention. Seek immediate medical attention for allergic reactions (rash, facial swelling, or breathing difficulties).
Warnings
Precautions:
- Dosage adjustment required for renal or hepatic impairment
- Potential interactions with probenecid and nephrotoxic drugs
- Not recommended during pregnancy/lactation without medical supervision
Disclose all current medications to your healthcare provider before starting treatment.
Storage Information
- Store at room temperature (15-30°C)
- Protect from moisture and heat
- Keep out of children’s reach
- Dispose expired medication properly
Disclaimer:
This information is intended for educational purposes only and does not replace professional medical advice. While we strive for accuracy, this content may not encompass all possible side effects, interactions, or contraindications. Always consult your healthcare provider regarding any medical condition or treatment. Our goal is to supplement, not substitute, the doctor-patient relationship.
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