Acyclovir Oral Tablet 400Mg Drug Medication Dosage Information
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Acyclovir: Oral tablet (400mg)

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Drug Image file DrugItem_19304.JPG
Acyclovir 400mg Tab
Heritage Pharmaceuticals Inc.
Pill Identification: HP 227 
Drug Image file DrugItem_21727.JPG
Acyclovir 400mg Tablet
Camber Pharmaceuticals Inc
Pill Identification: J  |  49
Drug Image file DrugItem_14322.JPG
Acyclovir 400mg Tab
Carlsbad Technology Inc
Pill Identification: CTI 112 
Drug Image file DrugItem_5937.JPG
Acyclovir 400mg Tab
Teva Pharmaceuticals USA Inc
Pill Identification: 400  |  N943
Drug Image file DrugItem_11401.JPG
Acyclovir 400mg Tab
Apotex Corp
Pill Identification: LOGO 5306 

What is this Medicine?

ACYCLOVIR (ay SYE kloe veer) is an antiviral medicine. It is used to treat or prevent infections caused by certain kinds of viruses. Examples of these infections include herpes and shingles. This medicine will not cure herpes.

CVS Pharmacy Patient Statistics for Acyclovir: Oral tablet(400mg)
Generic vs. Brand Name Usage*
*Brand contains same active ingredient but may not represent FDA-approved generic equivalent
Usage By Strength
In-Depth Information
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Acyclovir 400mg Tablet

NDC: 231550227
  • Prescription Required
  • Not a Controlled Drug
    (CSA Schedule)
  • FDA Approved




FDA approved for the following conditions:
Varicella (chickenpox) Infection, Herpes Zoster (shingles) Infection, Herpes Genitalis, Herpes Genitalis Prophylaxis

Sometimes used for but not FDA approved for the following conditions:
Hairy Leukoplakia, Complicated Herpes Simplex Virus Infection, Cytomegalovirus (CMV) Disease Prophylaxis, Herpes Simplex Infection Prophylaxis, Herpes Simplex Ocular Infection Prophylaxis, Herpes Labialis, Herpes Labialis Prophylaxis, Acute Retinal Necrosis (ARN), Varicella (chickenpox) Infection Prophylaxis, Herpes Zoster Ocular Infection, Bell's Palsy

Storage Information
Protect from light
Protect from moisture
Store at controlled room temperature (between 68 and 77 degrees F)
Acyclovir 400mg Tablet
Drug Image file DrugItem_19304.JPG
Heritage Pharmaceuticals Inc.
Pill Identification: HP 227 
Shape: round
Color: white

Reported Side Effects for Acyclovir 400mg Tablet

Anemia Incidence:
<1.0%*
Severity: MODERATE
Onset: DELAYED
Low Platelet Count Incidence:
<1.0%*
Severity: MODERATE
Onset: DELAYED
Tiredness Incidence:
1.0%*
Severity: MILD
Onset: EARLY
Skin Rash Incidence:
1.0-2.0%*
Severity: MILD
Onset: EARLY
Hallucinations Incidence:
1.0%*
Severity: MODERATE
Onset: EARLY
Skin Redness Incidence:
1.0%*
Severity: MODERATE
Onset: EARLY
Elevated Hepatic Enzymes Incidence:
1.0-2.0%*
Severity: MODERATE
Onset: DELAYED
Lightheadedness Incidence:
1.0%*
Severity: MILD
Onset: EARLY
Confusion Incidence:
1.0%*
Severity: MODERATE
Onset: EARLY
Convulsions Incidence:
1.0%*
Severity: SEVERE
Onset: DELAYED
Brain Dysfunction Incidence:
1.0%*
Severity: MODERATE
Onset: DELAYED
Shaking Incidence:
1.0%*
Severity: MILD
Onset: EARLY
Itching Incidence:
1.0-4.0%*
Severity: MILD
Onset: RAPID
Coma Incidence:
1.0%*
Severity: SEVERE
Onset: EARLY
Distressed Incidence:
1.0%*
Severity: MILD
Onset: EARLY
Headache Incidence:
2.2-3.0%*
Severity: MILD
Onset: EARLY
Loose Stools Incidence:
2.4-3.2%*
Severity: MILD
Onset: EARLY
Upset Stomach Incidence:
2.4-7.0%*
Severity: MILD
Onset: EARLY
Vomiting Incidence:
2.7-7.0%*
Severity: MILD
Onset: EARLY
Feeling Sick Incidence:
11.5%*
Severity: MILD
Onset: EARLY
*This is an approximate aggregated range of reported side effects from clinical studies performed on this drug. Your experience with this drug may be different.
Pregnancy & Lactation Information
FIRST Trimester

Class B - Animal studies have revealed no evidence of harm to the fetus, however, there are no adequate and well-controlled studies in pregnant women. OR Animal studies have shown an adverse effect, but adequate and well-controlled studies in pregnant women have failed to demonstrate a risk to the fetus in any trimester.

SECOND Trimester

Class B - Animal studies have revealed no evidence of harm to the fetus, however, there are no adequate and well-controlled studies in pregnant women. OR Animal studies have shown an adverse effect, but adequate and well-controlled studies in pregnant women have failed to demonstrate a risk to the fetus in any trimester.

THIRD Trimester

Class B - Animal studies have revealed no evidence of harm to the fetus, however, there are no adequate and well-controlled studies in pregnant women. OR Animal studies have shown an adverse effect, but adequate and well-controlled studies in pregnant women have failed to demonstrate a risk to the fetus in any trimester.

Lactation

Compatible - This drug is generally safe to take by nursing mothers.


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