Elizabeth Wolfenden has been a professional freelance writer since 2005 with articles published on a variety of blogs and websites. She specializes in the areas of nutrition, health, psychology, mental health and education. Wolfenden holds a bachelor's degree in elementary education and a master's degree in counseling from Oakland University. View Full Profile Although Valtrex does not commonly cause weight loss, this doesn’t mean that weight loss never occurs for someone using this medication. Three common side effects of Valtrex include nausea, stomach pain and vomiting. In clinical trials, up to 15 percent of patients experienced nausea, up to 11 percent experienced stomach pain and up to 6 percent experienced vomiting, according to manufacturer Glaxo Smith Kline. Individuals who experience these side effects may be less likely to overeat, and therefore may find themselves losing weight. 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. Although valacyclovir will not cure shingles or genital herpes, it does help relieve the pain and discomfort and helps the sores heal faster. Valacyclovir is available only with your doctor's prescription. In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. For this medicine, the following should be considered: Allergies Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals.
To assess the effect of high doses of valacyclovir VCV on HSV-1 DNA shedding. by intraperitoneal administration of xylazine 6.6 mg/kg of body weight and. Nov 29, 2018. Detailed drug Information for valacyclovir. unusual tiredness or weakness; upper right abdominal pain; vomiting; weight gain; wheezing.