Famvir
Famvir is an antiviral medicine that stops the virus causing the infection from multiplying, and you benefit most from starting treatment as soon as symptoms appear.
Form
tabletti, kalvopäällysteinen
Strength
500 mg
Active Ingredient
Famciclovir
Manufacturer
Phoenix Labs
How to Use
Dosage
The dose varies depending on your condition and immune system; always follow your doctor's specific instructions. For shingles, it's typically 500 mg three times a day; for genital herpes, it can range from 125 mg twice a day to 500 mg three times a day.
Method
You can take Famvir tablets with or without food.
Important
The maximum daily dose can be up to 1500 mg (e.g., 500 mg three times a day).
Possible Side Effects
COMMON
- •Headache
- •Nausea
- •Abdominal pain
- •Diarrhea
- •Vomiting
- •Dizziness
- •Rash
- •Itching
- •Abnormal liver function test results
RARE
- •Severe blistering on the skin or mucous membranes of the lips, eyes, mouth, nose, or genitals (signs of a severe allergic skin reaction).
- •Unexplained bruising, red or purple spots on the skin, or nosebleeds (signs of decreased platelet count).
- •Swelling under the skin (e.g., swelling of the face, around the eyes, eyelids, or throat).
- •Yellowing of the skin and/or eyes (signs of jaundice).
- •Red skin patches, itching, burning (signs of inflamed blood vessels).
- •Seizures
- •Difficulty breathing or swallowing, rash, itching, hives, cough, wheezing, dizziness, changes in consciousness, low blood pressure with general itching, skin redness, swelling of the face/throat; bluish discoloration of the lips, tongue, or skin (signs of a severe allergic reaction).
- •Confusion
- •Drowsiness (especially in elderly people)
- •Itchy rash (hives)
- •Hallucinations (seeing or hearing things that are not real)
- •Palpitations (signs of an abnormal heart rhythm)
Important Warnings
- Do not take Famvir if you are allergic to famciclovir, penciclovir, or any other ingredients in this medicine.
- Tell your doctor if you have (or have had) kidney problems; your doctor may need to adjust your dose.
- Inform your doctor if you have immune system disorders.
- Tell your doctor if you have liver problems.
- To prevent spreading genital herpes, practice safe sex, use condoms, and avoid sexual contact if you have sores or blisters on your genitals, even if you are on Famvir treatment.
Show 1 more warnings
- Famvir may cause dizziness, drowsiness, or confusion. Do not drive or operate machinery if you experience these symptoms during treatment.