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. 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. Amoxicillin purpose Levitra review Cheap generic cialis uk online Valacyclovir comes only as a tablet you take by mouth. Valacyclovir oral tablet is used to treat viral infections caused by a group of viruses called herpes simplex viruses. It’s used to treat cold sores oral herpes, shingles, or chickenpox. It’s also used to treat or prevent flare-ups of genital herpes. Medscape - Herpes simplex, zoster-specific dosing for Valtrex valacyclovir, frequency-based adverse effects, comprehensive interactions, contraindications. Valacyclovir for First Herpes Outbreaks. The standard dosage of valacyclovir for first-time herpes outbreaks is 1,000 mg two times per day over a period of 10 days. Valacyclovir usually starts treating herpes symptoms as soon as it’s in your system, but can take several days to 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 - Side Effects, Dosage., Valtrex valacyclovir dosing, indications, interactions, adverse. Clomid for trtCialis in australia Herpes Zoster VALTREX is indicated for the treatment of herpes zoster shingles in immunocompetent adults. The efficacy of VALTREX when initiated more than 72 hours after. from 500-mg VALTREX Caplets for use in pediatric patients for whom a solid dosage form is not appropriate see Dosage and Administration 2.3. Valacyclovir oral suspension 25 mg/mL or 50 mg/mL can be.. How Long Does Valacyclovir Valtrex Take to Work?. Valtrex Tablets 500mg - Summary of Product Characteristics SmPC.. Jan 01, 2017 · Valacyclovir is used to treat herpes virus infections, including herpes labialis also known as cold sores, herpes zoster also known as shingles, and herpes simplex also known as genital herpes in adults. It is also used to treat chickenpox and cold sores in children. In your body, valacyclovir becomes the anti-herpes medicine, acyclovir. Valacyclovir Valtrex Valacyclovir for shingles works pretty much the same as Acyclovir. It is actually a better version of Acyclovir. When taken, the drug is broken down into Acyclovir, a process that allows more of the active ingredient to be available in the body. 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.