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Herpes Simplex in Emergency Medicine Medication

  • Author: Rahul Sharma, MD, MBA, FACEP; Chief Editor: Steven C Dronen, MD, FAAEM  more...
 
Updated: Oct 27, 2015
 

Medication Summary

Antiviral drugs with activity against viral DNA synthesis have been effective against HSV infections. These drugs inhibit virus replication and may suppress clinical manifestations but are not a cure for the disease. Since HSV remains latent in sensory ganglia, the rates of relapse are similar in treated and untreated patients.

The 2006 CDC guidelines for STD treatment recommend that all initial genital herpes infections be treated with antivirals to reduce any potential complications.[6]

Acyclovir (Zovirax) provides initial, recurrent, and suppressive therapy for genital HSV. It is effective for mucocutaneous HSV in an immunocompromised host as well as HSV encephalitis. Little evidence supports the routine use of acyclovir for primary oral-labial HSV. Oral acyclovir has been shown to be effective in suppressing herpes labialis in immunocompromised patients with frequent recurrent infections. Begin use during the prodromal period.

Daily suppressive therapy has shown to be 80% effective in preventing recurrences and should be considered in patients who suffer from frequent recurrences.[7]

Administer famciclovir (Famvir) or valacyclovir (Valtrex) for recurrent episodes of genital HSV. Herpes simplex keratoconjunctivitis is treated with topical 1% trifluridine (Viroptic).

In pregnancy, the use of antiviral agents such as valacyclovir and acyclovir has been shown to be safe with no increased risk of birth defects.[8]

Use pain medication as needed. Many patients may require narcotics for the relief of severe pain from the lesions.

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Antiviral agents

Class Summary

The goals in use of antivirals are to (1) shorten the clinical course, (2) prevent complications, (3) prevent the development of latency and/or subsequent recurrences, (4) decrease transmission, and (5) eliminate established latency.

Acyclovir (Zovirax)

 

DOC; reduces duration of symptomatic lesions. Indicated for patients presenting within 48 h of rash onset. Patients on acyclovir experience less pain and faster resolution of cutaneous lesions.

Famciclovir (Famvir)

 

Prodrug that, when biotransformed into active metabolite penciclovir, may inhibit viral DNA synthesis/replication. Useful for recurrent episodes of genital HSV.

Valacyclovir (Valtrex)

 

Prodrug that is rapidly converted to acyclovir before exerting its antiviral activity. Valacyclovir is more expensive but has more convenient dosing regimen than acyclovir. Useful for recurrent episodes of genital HSV.

1% Trifluridine (Viroptic)

 

Replaces thymidine in viral DNA, resulting in production of defective proteins and thus inhibiting viral replication. Useful in treatment of keratoconjunctivitis.

Docosanol cream (Abreva)

 

Prevents viral entry and replication at cellular level. Use at first sign of cold sore or fever blister.

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Contributor Information and Disclosures
Author

Rahul Sharma, MD, MBA, FACEP Medical Director and Associate Chief of Service, NYU Langone Medical Center, Tisch Hospital Emergency Department; Assistant Professor of Emergency Medicine, New York University School of Medicine

Rahul Sharma, MD, MBA, FACEP is a member of the following medical societies: American College of Emergency Physicians, American Association for Physician Leadership, Phi Beta Kappa, Society for Academic Emergency Medicine

Disclosure: Nothing to disclose.

Specialty Editor Board

Francisco Talavera, PharmD, PhD Adjunct Assistant Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Received salary from Medscape for employment. for: Medscape.

Eric L Weiss, MD, DTM&H Medical Director, Office of Service Continuity and Disaster Planning, Fellowship Director, Stanford University Medical Center Disaster Medicine Fellowship, Chairman, SUMC and LPCH Bioterrorism and Emergency Preparedness Task Force, Clinical Associate Professor, Department of Surgery (Emergency Medicine), Stanford University Medical Center

Eric L Weiss, MD, DTM&H is a member of the following medical societies: American College of Emergency Physicians, American College of Occupational and Environmental Medicine, American Medical Association, American Society of Tropical Medicine and Hygiene, Physicians for Social Responsibility, Southeastern Surgical Congress, Southern Oncology Association of Practices, Southern Clinical Neurological Society, Wilderness Medical Society

Disclosure: Nothing to disclose.

Chief Editor

Steven C Dronen, MD, FAAEM Chair, Department of Emergency Medicine, LeConte Medical Center

Steven C Dronen, MD, FAAEM is a member of the following medical societies: American Academy of Emergency Medicine, Society for Academic Emergency Medicine

Disclosure: Nothing to disclose.

Additional Contributors

Lawrence C Brilliant, MD Clinical Assistant Professor, Department of Primary Care and Community Services, MCP Hahnemann University; Attending Physician, Department of Emergency Medicine, Doylestown Hospital

Lawrence C Brilliant, MD is a member of the following medical societies: American College of Emergency Physicians

Disclosure: Nothing to disclose.

Robin R Hemphill, MD, MPH Associate Professor, Director, Quality and Safety, Department of Emergency Medicine, Emory University School of Medicine

Robin R Hemphill, MD, MPH is a member of the following medical societies: American College of Emergency Physicians, Society for Academic Emergency Medicine

Disclosure: Nothing to disclose.

References
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Cutaneous vesicles characteristic of herpes simples virus infection
Herpes labialis
Penile infection with herpes simplex virus type 2
Tzanck smear showing a multinucleated giant cell
Herpes simplex virus dendritic ulcer with fluorescein staining.
Genital herpes infection
 
 
 
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