Acyclovir is an antiviral medication used to treat infections caused by certain types of viruses, particularly the herpes simplex virus (HSV) and varicella-zoster virus (VZV). The 200 mg tablet formulation is commonly prescribed for the treatment of cold sores, genital herpes, and shingles.
Dosage Form:
- Strength: 200 mg per tablet
- Packaging: Available in packs of 25 tablets.
Indications
Acyclovir is indicated for:
- Herpes Simplex Virus Infections: Treatment of initial and recurrent episodes of genital herpes and cold sores.
- Shingles (Herpes Zoster): Management of pain and discomfort associated with shingles.
- Varicella (Chickenpox): Treatment in certain patients, particularly those at risk for severe disease.
Dosage
The typical adult dosage for Acyclovir 200 mg tablets is as follows:
- For Cold Sores: Take one tablet (200 mg) five times a day for 5 days, starting at the first sign of symptoms (tingling or itching).
- For Genital Herpes: The dosage may vary; generally, one tablet (200 mg) five times a day for 5 days is recommended for initial infections.
- For Shingles: The recommended dosage is one tablet (800 mg) taken five times daily for 7 to 10 days.
Warnings and Precautions
- Elderly Patients: May require dose adjustments due to potential kidney function impairment.
- Pregnant Women: Should use Acyclovir only if clearly needed; consult a healthcare provider before use.
- Children: Generally safe for children over 2 years; dosage should be adjusted based on weight and age.
Drug Interactions
Acyclovir may interact with other medications, particularly:
- Nephrotoxic Drugs: Increased risk of kidney damage when used with other medications that affect kidney function.
