Treatment for Genital Herpes Simplex Virus Outbreaks

First-Line Treatment Options for Recurrent Genital Herpes

• The CDC recommends valacyclovir 500 mg orally twice daily for 5 days as first-line therapy for recurrent genital herpes outbreaks 1
• Alternative regimens include acyclovir 400 mg orally three times daily for 5 days, acyclovir 800 mg orally twice daily for 5 days, acyclovir 200 mg orally five times daily for 5 days, and famciclovir 125 mg orally twice daily for 5 days 1

Timing of Treatment

• Episodic therapy is most effective when started during the prodromal period or within 1 day after onset of lesions 1
• Delayed treatment beyond 72 hours significantly reduces effectiveness 2

Suppressive Therapy Considerations

• Daily suppressive therapy should be considered for patients with frequent recurrences (≥6 episodes per year) 1
• Recommended suppressive regimens include valacyclovir 1 g orally once daily or 500 mg orally once daily, acyclovir 400 mg orally twice daily, and famciclovir 250 mg orally twice daily 1
• Suppressive therapy can reduce recurrence frequency by ≥75% and reduce asymptomatic viral shedding 1

Important Clinical Considerations

• Topical acyclovir is substantially less effective than oral therapy and is not recommended 1, 2
• Systemic antiviral drugs partially control symptoms but do not eradicate latent virus or affect subsequent recurrences after discontinuation 3
• After 1 year of suppressive therapy, consider discontinuation to assess recurrence frequency 1

Special Populations

• For immunocompromised patients, including those with HIV, higher doses or longer courses of antivirals may be needed 4
• HIV-infected patients who have genital herpes should be monitored closely as they may require longer courses of therapy 3
• For pregnant women, the safety of various treatments should be considered - ciprofloxacin is contraindicated during pregnancy 4