500-1000mg BID/TID depending on indication
HSV First Episode (genital): 1g PO BID x 7-10 days
HSV Recurrent Episodes (genital): 500 mg PO BID x 3 days OR 1 g PO daily x 3 days
HSV Episodic/Recurrent (oral): 2g PO BID x 1 day
Treatment of Genital HSV Pregnancy:
1 g twice PO daily for 7 to 10 days; extend duration if lesion has not healed completely after 10 days
500 mg PO twice daily for 3 days OR 1 g PO once daily for 5 days
Suppressive therapy, for patients with recurrent genital HSV during pregnancy:
500 mg PO twice daily, beginning at 36 weeks' gestation and continued until delivery