How much acyclovir should I take for a cold sore?
For treatment of cold sores: Adults—2000 milligrams (mg) every 12 hours for one day. Children 12 years of age and above—2000 milligrams (mg) every 12 hours for one day. Children below 12 years of age—Use and dose must be determined by your doctor.
How do you take acyclovir tablets?
Take this medication by mouth with or without food as directed by your doctor, usually 2 to 5 times a day. Drink plenty of fluids while taking this medication unless your doctor directs you otherwise. If you are using the liquid form of this medication, shake the bottle well before each dose.
How long does it take acyclovir pill to work?
Response and effectiveness. May take up to two hours to reach peak plasma concentrations after oral acyclovir administration. May take up to three days for symptom reduction; however, acyclovir should be taken until the course prescribed is completed. Acyclovir works best when started within 48 hours of symptom onset.
How do I use acyclovir for cold sores?
Acyclovir cream is usually applied five times a day for 4 days. Acyclovir cream may be applied at any time during a cold sore outbreak, but it works best when it is applied at the very beginning of a cold sore outbreak, when there is tingling, redness, itching, or a bump but the cold sore has not yet formed.
Can you overdose on acyclovir?
Most patients with valacyclovir or acyclovir ingestion or unintentional overdose experience only mild or moderate effects, including nausea, vomiting, and headache.
How many acyclovir can I take at once?
Dosage for aciclovir tablets and liquid
A single dose is generally between 200mg and 800mg. Doses may be lower for children. You’ll usually take aciclovir 2 to 5 times a day.
How much acyclovir can I take in a day?
A single dose is generally between 200mg and 800mg. Doses may be lower for children. You’ll usually take aciclovir 2 to 5 times a day. Try to space your doses evenly throughout the day.
What happens if I take 2 acyclovir?
But if you remember just a few hours before your next scheduled dose, take only one dose. Never try to catch up by taking two doses at once. This could result in dangerous side effects. If you take too much: You could have dangerous levels of the drug in your body and experience more severe side effects.
What should I avoid while taking acyclovir?
Avoid brushing your teeth, chewing gum, or wearing an upper denture while you have a buccal tablet in your mouth. You may rinse your mouth gently. Drink plenty of liquids to prevent dry mouth. Herpes infections are contagious and you can infect other people, even while you are being treated with acyclovir.
How many acyclovir can I take a day?
How much acyclovir can you take in a day?
Can you take 2 acyclovir at once?
Can I take acyclovir 400 mg 3 times a day?
*Acyclovir 400 mg orally 3 times/day for 5 days is also effective but is not recommended because of frequency of dosing.
Why does acyclovir make me tired?
Low red blood cells and platelets: This drug may cause thrombotic thrombocytopenic purpura (TTP) and hemolytic uremic syndrome (HUS). These conditions cause dangerously low levels of red blood cells and platelets in your body. This may be fatal (cause death). Symptoms can include fatigue and low energy.
How many 400 mg acyclovir can I take a day?
Adults and children 12 years of age and older—200 to 400 mg two to five times a day for five days or up to twelve months, depending on how often your outbreaks of infection occur. Children up to 12 years of age—Use and dose must be determined by the doctor.
What is the maximum amount of acyclovir per day?
General: Maximum dose of 20 mg/kg every 8 hours should not be exceeded.
Does acyclovir affect sleep?
Agitation, confusion, dizziness, and drowsiness may be especially likely to occur in elderly patients who are usually more sensitive than younger adults to the central nervous system effects of acyclovir.
Why do you have to drink water with acyclovir?
Getting the most from your treatment
You should drink plenty while you are on aciclovir to keep your kidneys working well. Drinking water is best, but hot drinks and non-alcoholic cold drinks are also suitable. Aciclovir could cause your skin to become more sensitive to sunlight than it is usually.