Valtrex (Valacyclovir Hydrochloride) may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. Drugs & Vitamins Drugs A-Z Drugs by Classification Drugs Comparison (Drug Vs. Drug) Vitamins & Supplements Drug Interaction Checker Pill Identifier. Tools & Resources Symptom Checker Diseases. Valtrex (valacyclovir) and Famvir (famciclovir) are antiviral drugs used to treat infections with shingles (herpes zoster), genital herpes (herpes simplex genitalis), and cold sores (herpes labialis). Side effects of Valtrex and Famvir that are similar include headache, nausea, vomiting, reduced white blood cells, diarrhea, and rash. Valaciclovir, also spelled valacyclovir, is an antiviral medication used to treat outbreaks of herpes simplex or herpes zoster (shingles). It is also used to prevent cytomegalovirus following a kidney transplant in high risk cases. It is taken by mouth. Common side effects include headache and vomiting. Severe side effects may include kidney problems. Valacyclovir (Valtrex) is an antiviral medicine. It is used to treat or prevent infections caused by certain kinds of viruses. You'll need to ask your doctor if pill splitting is a good idea for your prescription; if so, they will need to adjust your prescription accordingly. Some important things to consider before pill splitting: - Pill splitters can be bought at most pharmacies for. U.S. Food and Drug Administration, Silver Spring, MD, United States. 739,992 likes · 2,819 talking about this · 3,480 were here. The official page of the U.S. Food. Offering a range of specialist services to the construction industry. Including refurbishment of bridges and structures, footbridge design and build, survey and testing of bridges and structures, reconstituted and natural stone and bespoke joinery. Aciclovir will not stop your contraception working. This includes the combined pill and emergency contraception. But if aciclovir makes you get sick or have severe diarrhoea (6 to 8 watery poos in 24 hours) for more than 24 hours, your contraceptive pills may not protect you from pregnancy. Look on the pill packet to find out what to do. Drugs.com provides accurate and independent information on more than 24,000 prescription drugs, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. Data sources include IBM Watson Micromedex (updated 31 Aug 2021), Cerner Multum™ (updated 1 Oct 2021), ASHP (updated 30 Aug 2021.