Valtrex (valaciclovir, valacyclovir) is a kind of antiviral drug, which is intended to treat disorders caused by herpes viruses. Particularly, it is also widely used for the treatment of cold sores (oral herpes), shingles (herpes zoster) and genital herpes (herpes B.) Also, it is used to get rid of chickenpox in children over 2 years old. It should be noted that this drug alleviates symptoms, but does not treat the virus itself. After absorption from the intestinal tract, generic valacyclovir is converted to acyclovir triphosphate and amino acid valine (in the liver). Acyclovir triphosphate inhibits replication of viral DNA polymerase, as it invades the viral DNA chain and upsets the DNA strand. After that, the virus loses much of its potential and can no longer do any visible damage to the human body. Even if you do understand the drug’s mechanism of action, pharmacokinetics, pharmacodynamics, and realize the possibility of side effects, do not use it without consulting your doctor. Once you have the first symptoms characteristic of a herpes virus, call your doctor. azithromycin dose for chlamydia Valtrex has been approved as a treatment for recurrent genital herpes (herpes simplex) in otherwise healthy (immunocompetent) adults. The efficacy of Valtrex has not been established in immunocompromised subjects. In clinical trials, Valtrex shortened the healing time of genital herpes sores by 33% on average compared to placebo. The duration of pain associated with genital herpes was reduced by 25% in subjects who received Valtrex as opposed to placebo. Valtrex also stopped viral shedding 50% faster on average than placebo. Viral shedding is the process in which virus is released from the skin during an outbreak of genital herpes. Valtrex has been shown to be effective when administered within 24 hours of the first sign or symptom of a recurrent genital herpes outbreak. Xanax wikipedia Zithromax for chlamydia Valacyclovir. Class Valacyclovir is a prodrug of acyclovir. Antiviral Activity Valacyclovir has activity against herpesviruses. Mechanism of Action Valacyclovir is. zoloft psychosis Mechanism of Action Valacyclovir is a nucleoside analogue DNA polymerase inhibitor. Valacyclovir hydrochloride is rapidly converted to acyclovir which has demonstrated antiviral activity against HSV types 1 HSV─1 and 2 HSV─2 and VZV both in cell culture and in vivo. Acting as an oral prodrug, valacyclovir is converted in vivo to acyclovir. BASIC PHARMACOKINETICS · MECHANISM OF RESISTANCE. Valaciclovir (INN) or valacyclovir (USAN) is an antiviral drug used in the management of herpes simplex and herpes zoster (shingles). It is a prodrug, being converted in vivo to Acyclovir. It is marketed by Glaxo Smith Kline under the trade name Valtrex or Zelitrex. Valaciclovir, also spelled valacyclovir, is an antiviral drug used in the management of herpes simplex, herpes zoster (shingles), and herpes B. It is a prodrug, which is converted to aciclovir in a persons body. Common adverse drug reactions (≥1% of patients) associated with valaciclovir therapy are the same as for aciclovir, its active metabolite, and include: nausea, vomiting, diarrhea and headache. Infrequent adverse effects (0.1–1% of patients) include: agitation, vertigo, confusion, dizziness, edema, arthralgia, sore throat, constipation, abdominal pain, rash, weakness and/or renal impairment. Rare adverse effects ( Valaciclovir belongs to a family of molecules first described and patented by Paolo Cornaglia Ferraris in 1982 (patents EP0077460 A2, CA1258149A1, DE3273785D1, EP0077460A3, EP0077460B1, US4567182). Valaciclovir is a prodrug, an esterified version of aciclovir that has greater oral bioavailability (about 55%) than aciclovir (10–20%). It is converted by esterases to the active drug aciclovir, as well as the amino acid valine, via hepatic first-pass metabolism. Valtrex mechanism of action Valaciclovir - DrugBank, Valtrex - FDA prescribing information, side effects and uses Canadian pharmacy spam Cipro prostate Acyclovir Nursing Considerations, Side Effects and Mechanism of Action Pharmacology for Nurses. Diazepam Nursing Considerations, Side Effects, and Mechanism of Action Pharmacology for Nurses. Acyclovir Nursing Considerations, Side Effects and. Valacyclovir An overview - UpToDate Valtrex - FDA Valtrex Mechanism of Action Pharmacology Pharmacodynamics Mechanism of Action Valaciclovir, an antiviral, is the L-valine ester of aciclovir. Aciclovir is a purine guanine nucleoside analogue. buy amoxil online cheap Valacyclovir is a Herpes Simplex Virus Nucleoside Analog DNA Polymerase Inhibitor, and Herpes Zoster Virus Nucleoside Analog DNA Polymerase Inhibitor, and Herpesvirus Nucleoside Analog DNA Polymerase Inhibitor. The mechanism of action of valacyclovir is as a DNA Polymerase Inhibitor. The chemical classification of valacyclovir is Nucleoside Analog. Learn about Valtrex Valacyclovir Hydrochloride may treat, uses, dosage, side effects, drug interactions, warnings, patient labeling. Mechanism Of Action.