Valacyclovir decreases the severity and length of these outbreaks. Treatment focuses on pain management and shortening the duration of the illness with antiviral medications.Genital herpes is a sexually transmitted disease (STD) caused by the herpes simplex virus (HSV). Valacyclovir is used to treat herpes zoster (shingles) and genital herpes. Certain valacyclovir side effects can potentially become more common with long-term usage of the drug. Valacyclovir oral tablet is a prescription medication used to treat or prevent infections caused by the herpes simplex virus. There is no cure for genital herpes. 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. Valacyclovir is highly effective in managing herpes. This makes it important to speak to your doctor about the potential for long-term valacyclovir side effects if you have a history of kidney issues. Check with your doctor immediately if any of the following side effects occur: It’s also an extremely safe, well studied medication. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.Things to remember when you fill your prescription.WebMD does not provide medical advice, diagnosis or treatment.This survey is being conducted by the WebMD marketing sciences department.All information will be used in a manner consistent with the WebMD Symptoms of herpes of the eye include pain in and around the eye, rash or sores on the eyelids, redness, swelling, and cloudiness of the cornea.You are encouraged to report negative side effects of prescription drugs to the FDA. Store tablets at controlled room temperature 59-86°F (15-30°C) [See USP]. You may report side effects to Health Canada at 1-866-234-2345.Older adults may be more sensitive to the side effects of this drug, especially mental/mood changes (such as confusion, agitation) and kidney problems (such as a change in the amount of urine).Some products that may interact with this drug include: other drugs that may cause If someone has overdosed and has serious symptoms such as passing out or This medication has been prescribed for your current condition only. Side Effects. The culprit is the varicella-zoster virus. Symptoms of genital herpes include painful blisters and often fever, body aches, and swollen lymph nodes for first time infection. MedicineNet does not provide medical advice, diagnosis or treatment. Common side effects of Valtrex include headache, nausea, vomiting, abdominal pain, cold symptoms, increased liver enzymes, reduction of white blood cells, diarrhea, rash, joint pain, and dizziness. Air droplets can spread the virus, as can direct contact with the fluid from the blisters. Take the Shingles Quiz to...What is genital herpes? These events have been chosen for inclusion due to a combination of their seriousness, frequency of reporting, or potential causal connection to Valtrex.No clinically significant drug-drug or drug-food interactions with Valtrex Take your next dose at the regular time. It is used to treat infections with shingles (herpes zoster), genital herpes (herpes simplex genitalis), and cold sores (herpes labialis). Rather, it is converted to Valtrex, therefore, is active against the same viruses as acyclovir, but Valtrex has a longer duration of action than acyclovir, and, therefore, can be taken fewer times each day.There has been no adequate evaluation of Valtrex in The side effect profile of Valtrex is similar to that of acyclovir (More serious side effects include central nervous system side effects which are more likely to happen in the elderly, for example:The following serious adverse reactions are discussed in greater detail in other sections of the labeling:The most common adverse reactions reported in at least 1 indication by greater than 10% of adult subjects treated with Valtrex and observed more frequently with Valtrex compared with placebo are In a clinical trial for the treatment of initial episodes of genital herpes, the adverse reactions reported by greater than or equal to 5% of subjects receiving Valtrex 1 gram twice daily for 10 days (n = 318) or oral acyclovir 200 mg 5 times daily for 10 days (n = 318), respectively, included headache (13%, 10%) and nausea (6%, 6%). For the incidence of laboratory abnormalities see Table 2.In 3 clinical trials for the episodic treatment of recurrent genital herpes, the adverse reactions reported by greater than or equal to 5% of subjects receiving Valtrex 500 mg twice daily for 3 days (n = 402), Valtrex 500 mg twice daily for 5 days (n = 1,136), or placebo (n = 259), respectively, included headache (16%, 11%, 14%) and nausea (5%, 4%, 5%). WebMD shows you pictures of genital herpes symptoms and treatments -- and how to avoid getting the...Shingles falls within a well-known family of viruses that cause itching, burning, blisters, and pain.