If you’ve been prescribed Acivir, you probably want to know exactly how much to take and when. Getting the dosage right isn’t just about effectiveness – it also lowers the risk of side effects. Below you’ll find a straightforward rundown of the typical Acivir dosing schedule, adjustments for special situations, and practical tips to remember.
For most adults, the usual Acivir dose is 500 mg taken twice a day (every 12 hours). You should swallow the tablets whole with a full glass of water. If you’re treating a severe infection, some doctors may suggest a higher dose, up to 1 g twice daily, but only under medical supervision.
Take Acivir with food if you experience stomach upset. Food doesn’t change how the drug works, but it can help reduce nausea. Set a reminder on your phone so you don’t miss a dose – consistency is key.
Children under 12 years old typically receive a weight‑based dose: about 10 mg per kilogram of body weight, given twice a day. Always follow the pediatrician’s exact number – don’t guess.
Older adults often need a lower dose because the kidneys clear the drug more slowly. If you have moderate kidney impairment, the dose may be cut in half (e.g., 250 mg twice daily). Your doctor will order a blood test to check kidney function before deciding.
Missed a dose? Take it as soon as you remember, unless it’s almost time for your next one. In that case, skip the missed tablet and continue with your regular schedule. Never double up.
Acivir should be taken for the full prescribed course, even if you feel better after a few days. Stopping early can let bacteria survive and become resistant, which makes future infections harder to treat.
Watch for common side effects like mild diarrhea, headache, or a rash. If you notice severe reactions—such as difficulty breathing, swelling of the face, or a persistent high fever—call your doctor right away.
Remember, the information here is a general guide. Your exact dosage may differ based on the infection type, your weight, age, and kidney health. Always double‑check with your prescriber before making any changes.
Having the right Acivir dosage plan in hand makes it easier to stick to the schedule and get back to feeling good faster. Keep this page bookmarked, set those reminders, and don’t hesitate to ask your pharmacist if anything feels unclear.