Valtrex

Valtrex

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Questions & Answers

Side Effects & Adverse Reactions

There is currently no warning information available for this product. We apologize for any inconvenience.

Legal Issues

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FDA Safety Alerts

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Manufacturer Warnings

There is currently no manufacturer warning information available for this drug.

FDA Labeling Changes

There are currently no FDA labeling changes available for this drug.

Uses

1.1 Adult Patients

Cold Sores (Herpes Labialis): VALTREX is indicated for treatment of cold sores (herpes labialis). The efficacy of VALTREX initiated after the development of clinical signs of a cold sore (e.g., papule, vesicle, or ulcer) has not been established.

Genital Herpes: Initial Episode: VALTREX is indicated for treatment of the initial episode of genital herpes in immunocompetent adults. The efficacy of treatment with VALTREX when initiated more than 72 hours after the onset of signs and symptoms has not been established.

Recurrent Episodes: VALTREX is indicated for treatment of recurrent episodes of genital herpes in immunocompetent adults. The efficacy of treatment with VALTREX when initiated more than 24 hours after the onset of signs and symptoms has not been established.

Suppressive Therapy: VALTREX is indicated for chronic suppressive therapy of recurrent episodes of genital herpes in immunocompetent and in HIV-infected adults. The efficacy and safety of VALTREX for the suppression of genital herpes beyond 1 year in immunocompetent patients and beyond 6 months in HIV-infected patients have not been established.

Reduction of Transmission: VALTREX is indicated for the reduction of transmission of genital herpes in immunocompetent adults. The efficacy of VALTREX for the reduction of transmission of genital herpes beyond 8 months in discordant couples has not been established. The efficacy of VALTREX for the reduction of transmission of genital herpes in individuals with multiple partners and non-heterosexual couples has not been established. Safer sex practices should be used with suppressive therapy (see current Centers for Disease Control and Prevention [CDC] Sexually Transmitted Diseases Treatment Guidelines).

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 the onset of rash and the efficacy and safety of VALTREX for treatment of disseminated herpes zoster have not been established.

1.2 Pediatric Patients

Cold Sores (Herpes Labialis): VALTREX is indicated for the treatment of cold sores (herpes labialis) in pediatric patients ≥12 years of age. The efficacy of VALTREX initiated after the development of clinical signs of a cold sore (e.g., papule, vesicle, or ulcer) has not been established.

Chickenpox: VALTREX is indicated for the treatment of chickenpox in immunocompetent pediatric patients 2 to <18 years of age. Based on efficacy data from clinical studies with oral acyclovir, treatment with VALTREX should be initiated within 24 hours after the onset of rash [see Clinical Studies (14.4)].

1.3 Limitations of Use

The efficacy and safety of VALTREX have not been established in:

  • Immunocompromised patients other than for the suppression of genital herpes in HIV-infected patients with a CD4+ cell count ≥100 cells/mm3.
  • Patients <12 years of age with cold sores (herpes labialis).
  • Patients <2 years of age or ≥18 years of age with chickenpox.
  • Patients <18 years of age with genital herpes.
  • Patients <18 years of age with herpes zoster.
  • Neonates and infants as suppressive therapy following neonatal herpes simplex virus (HSV) infection.

History

There is currently no drug history available for this drug.

Other Information

VALTREX (valacyclovir hydrochloride) is the hydrochloride salt of the L-valyl ester of the antiviral drug acyclovir.

VALTREX Caplets are for oral administration. Each caplet contains valacyclovir hydrochloride equivalent to 500 mg or 1 gram valacyclovir and the inactive ingredients carnauba wax, colloidal silicon dioxide, crospovidone, FD&C Blue No. 2 Lake, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate 80, povidone, and titanium dioxide. The blue, film-coated caplets are printed with edible white ink.

The chemical name of valacyclovir hydrochloride is L-valine, 2-[(2-amino-1,6-dihydro-6-oxo-9H-purin-9-yl)methoxy]ethyl ester, monohydrochloride. It has the following structural formula:

Valacyclovir hydrochloride structural formula

Valacyclovir hydrochloride is a white to off-white powder with the molecular formula C13H20N6O4•HCl and a molecular weight of 360.80. The maximum solubility in water at 25°C is 174 mg/mL. The pkas for valacyclovir hydrochloride are 1.90, 7.47, and 9.43.

Valtrex Manufacturers


  • Lake Erie Medical & Surgical Supply Dba Quality Care Products Llc
    Valtrex (Valacyclovir Hydrochloride) Tablet, Film Coated [Lake Erie Medical & Surgical Supply Dba Quality Care Products Llc]
  • Pd-rx Pharmaceuticals, Inc.
    Valtrex (Valacyclovir Hydrochloride) Tablet, Film Coated [Pd-rx Pharmaceuticals, Inc.]
  • Physicians Total Care, Inc.
    Valtrex (Valacyclovir Hydrochloride) Tablet, Film Coated [Physicians Total Care, Inc.]
  • Bryant Ranch Prepack
    Valtrex (Valacyclovir Hydrochloride) Tablet, Film Coated [Bryant Ranch Prepack]
  • Bryant Ranch Prepack
    Valtrex (Valacyclovir Hydrochloride) Tablet, Film Coated [Bryant Ranch Prepack]
  • Cardinal Health
    Valtrex (Valacyclovir Hydrochloride) Tablet, Film Coated [Cardinal Health]
  • Glaxosmithkline Llc
    Valtrex (Valacyclovir Hydrochloride) Tablet, Film Coated [Glaxosmithkline Llc]

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