Skip to Content

RX504 (Acyclovir 400 mg)

Pill imprint RX504 has been identified as Acyclovir 400 mg.

Acyclovir is used in the treatment of herpes simplex; cold sores; varicella-zoster; herpes simplex, mucocutaneous/immunocompetent host; herpes simplex encephalitis (and more), and belongs to the drug class purine nucleosides. There is no proven risk in humans during pregnancy. Acyclovir 400 mg is not a controlled substance under the Controlled Substance Act (CSA).

Acyclovir 400 mg RX504
Acyclovir 400 mg RX504
400 mg
14.00 mm
Elliptical / Oval
Prescription only
Drug Class:
Purine nucleosides
Pregnancy Category:
B - No proven risk in humans
CSA Schedule:
Not a controlled drug
Ranbaxy Pharmaceuticals Inc.
National Drug Code (NDC):
Inactive Ingredients:
silicon dioxide colloidal
magnesium stearate
microcrystalline cellulose
pregelatinized starch
sodium starch glycolate
Other Manufacturers / Repackagers:
NDC CodeManufacturer / Repackager
00904-6121 Major Pharmaceuticals
49999-0086 Lake Erie Medical and Surgical Supply (repackager)
63874-0500 Altura Pharmaceuticals Inc (repackager)
66336-0735 Dispensing Solutions Inc. (repackager)
21695-0010 Rebel Distributors Corp (repackager)
16590-0370 Stat RX USA LLC (repackager)
23490-5013 Palmetto State Pharmaceuticals Inc (repackager)
43063-0001 PDRX Pharmaceuticals Inc (repackager)

Note: Inactive ingredients may vary.

View Details Print Page Imprint Search

Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date, and complete, but no guarantee is made to that effect. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.

Copyright 2015, National Library of Medicine, Truven Health Analytics and Cerner Multum, Inc. All Rights Reserved.