This article explains the differences between Valacyclovir and Acyclovir, two antiviral medications that are used to treat cold sores around the mouth and shingles. Shingles, also known as herpes zoster, is a common viral infection which is caused by the varicella-zoster virus. About 33 percent of people will develop herpes zoster in their lifetime, with approximately 1 million cases every year in the US. This virus is actually the same virus that causes chickenpox. The symptoms of this condition generally affect only a small section of one side of the body. These symptoms may include: Valtrex is the brand name for this antiviral drug. It works by slowing the growth and spread of the virus, thus, the body can fight off the infection. In 1995, it was approved for medical use and is manufactured by Glaxo Smith Kline, a British pharmaceutical company with headquarters in London. In the United States, it is available as a generic drug since 2009. cialis natural Valacyclovir belongs to the class of medications known as antivirals. It is used to treat a viral infection affecting the skin known as shingles (herpes zoster). It is also used to treat cold sores, and to treat and prevent recurrences of genital herpes. It works by interfering with the way the virus reproduces. Valacyclovir works by stopping the virus from multiplying and spreading to nearby healthy cells. It does not cure shingles, cold sores, or genital herpes, but it does help the sores to heal more quickly, and it relieves pain and discomfort. When used to prevent recurrences of herpes, it also reduces the risk of transmission (spreading) of the infection to others. Cialis dosage Xanax photos Valacyclovir is used to treat infections caused by certain types of viruses. In children, it is used to treat cold sores around the mouth caused by herpes simplex and chickenpox caused by varicella zoster. In adults, it is used to treat shingles caused by herpes zoster and cold sores around the mouth. valtrex half life For recurrent outbreaks of genital herpes, valacyclovir works best if it is used within 24. However, the dose is usually not more than 1000 mg three times a day. For the treatment of an outbreak of genital herpes after the first infection, the dose of valacyclovir is 500 mg, twice a day, for three days. When used to prevent future outbreaks of genital herpes, the dose of valacyclovir is 1000 mg 1 gram, once a day, every day. Valacyclovir works best if it is used within 48 hours after the first symptoms of shingles or genital herpes (e.g., pain, burning, or blisters) begin to appear. For recurrent outbreaks of genital herpes, valacyclovir works best if it is used within 24 hours after the symptoms begin to appear. If you are taking valacyclovir for the treatment of chickenpox, it is best to start taking valacyclovir as soon as possible after the first sign of the chickenpox rash appears, usually within one day. Valacyclovir may be taken with meals or on an empty stomach. If you are using the oral suspension, use a specially marked measuring spoon or other device to measure each dose accurately. The average household teaspoon may not hold the right amount of liquid. Drink extra fluids so you will pass more urine while you are using this medicine. The dose in immunocompromised patients is 1000 mg three times daily for at least seven days (3000 mg total daily dose) and for 2 days following crusting of lesions. This dose should be reduced according to creatinine clearance (see Renal impairment below). For recurrent episodes, treatment should be for three to five days. For initial episodes, which can be more severe, treatment may have to be extended to ten days. For recurrent episodes of herpes simplex, this should ideally be during the prodromal period or immediately upon appearance of the first signs or symptoms. Valtrex can prevent lesion development when taken at the first signs and symptoms of an HSV recurrence. For herpes labialis (cold sores), valaciclovir 2000 mg twice daily for one day is effective treatment in adults and adolescents. The second dose should be taken about 12 h (no sooner than 6 h) after the first dose. Valacyclovir dosing for shingles Valtrex Valacyclovir Hydrochloride Side Effects, Interactions., Valacyclovir Oral Route Proper Use - Mayo Clinic Sildenfil Tamoxifen sigma Valacyclovir comes as a tablet to take by mouth. It is usually taken every 8 hours three times a day for 7 days to treat shingles. To treat genital herpes it is usually taken twice a day for 5 days. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part. Valacyclovir MedlinePlus Drug Information Taking Valacyclovir for Genital Herpes or Chickenpox Valacyclovir oral suspension 25 mg/mL or 50 mg/mL can be. Valtrex is the brand name for valacyclovir, an antiviral drug used to treat infections caused by certain types of viruses. In adults, it's prescribed for shingles herpes zoster, cold sores around the mouth, and to help lessen the effects of genital herpes. In children. cheap generic viagra canadian pharmacy Find out the dosage, uses, side effects, precautions, and the difference between Valacyclovir vs Acyclovir, two antiviral drugs used for shingles. Find out the dosage, uses, side effects, precautions, and the difference between Valacyclovir vs Acyclovir, two antiviral drugs used for shingles. Last reviewed on RxList 9/1/2016. Valtrex valacyclovir is an antiviral medication used to treat infections with herpes zoster shingles, herpes simplex genitalis genital herpes, and herpes labialis cold sores.