ACYCLOVIR 50 mg/g Ointment
🆔 Identity & classification
Where does this data come from?
🏷️ RxNorm drug class
This medicine belongs to the Herpesvirus Nucleoside Analog DNA Polymerase Inhibitor class.
Where does this data come from?
🏭 Manufacturer & labeler
Where does this data come from?
🩺 Clinical
Acyclovir cream is used to treat cold sores (fever blisters; blisters that are caused by a virus called herpes simplex) on the face or lips. Acyclovir ointment is used to treat first outbreaks of genital herpes (a herpes virus infection that causes sores to form around the genitals and rectum from time to time) and to treat certain types of sores caused by the herpes simplex virus in people with weak immune systems. Acyclovir is in a class of antiviral medications called synthetic nucleoside analogues. It works by stopping the spread of the herpes virus in the body. Acyclovir does not cure col...
Read the full MedlinePlus article ↗- Acyclovir doesn't cure herpes — it can't eliminate the virus from your body. What it does is slow down the virus's ability to copy itself, which shortens outbreaks, eases symptoms,...
- What exactly does acyclovir do — does it cure herpes?
- Timing really does matter with acyclovir. For cold sores, you want to start at the very first warning sign — that tingling or itching feeling — before a sore even appears. For geni...
- How soon do I need to start taking it for it to work?
Patient education
Supplement & herbal interactions
Some supplements/herbs that may interact with Acyclovir — tap one for details:
Where does this data come from?
Ask a licensed pharmacist directly — free, answered by our team.
💊 What it looks like
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🧪 Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.
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UNII OJ4Z5Z32L4
A synthetic polymer made by linking ethylene glycol units together. It serves as a solvent, humectant to retain moisture, and film-forming agent in tablets and coatings to improve texture and drug delivery.
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UNII 5655G9Y8AQ
A synthetic liquid polymer used as a solvent and humectant in medications. It helps dissolve active ingredients, maintain moisture in the formulation, and improve how the medicine flows and is absorbed.
2 inactive ingredients listed in the exact product block matched to this NDC.
Where does this data come from?
ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.Inactive ingredient FAQ
Are inactive ingredients the same for every manufacturer?
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💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per g | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | Not in the retail survey — common for institutional, discontinued, or low-volume packs. | |
| Medicaid paysCMS SDUD · 12 mo | No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data. | |
| Medicare drug plans payPart D · Q2 2026 | $1.40 | $21.00 / 15 g |
Where does this data come from?
🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Acyclovir 50 mg/g 00591-1159-30 | ACTAVIS | 1 tube | $0.315 | AB | Availability likely | — |
| acyclovir 50 mg/g 13668-0515-01 | Torrent | 15 g | $0.536 | AB | Availability likely | — |
| acyclovir 50 mg/g 16714-0885-01 | Northstar | 1 tube | $0.536 | AB | Availability likely | — |
| Acyclovir 50 mg/g 51672-1360-01 | Sun | 1 tube | $0.536 | AB | Availability likely | — |
| Acyclovir 50 mg/g 65162-0835-94 | Amneal | 1 tube | $0.536 | AB | Availability likely | — |
| acyclovir 50 mg/g 68462-0746-17 | Glenmark | 1 tube | $0.536 | AB | Availability likely | — |
| Acyclovir 50 mg/g 70700-0107-15 | Xiromed, | 1 tube | $0.536 | AB | Availability likely | — |
| acyclovir 50 mg/g 72578-0082-01 | Viona | 1 tube | $0.536 | AB | Availability likely | — |
| Acyclovir 50 mg/g 33342-0439-15 | Macleods | 1 tube | $0.676 | AB | FDA listed | — |
| Acyclovir 50 mg/g 51672-1361-05 | Sun | 1 tube | $9.108 | AB | Availability likely | — |
| Acyclovir 50 mg/g 62332-0423-05 | Alembic | 1 tube | $9.108 | AB | Availability likely | — |
| Acyclovir 50 mg/g 65162-0836-14 | Amneal | 1 tube | $9.108 | AB | Availability likely | — |
| Acyclovir 50 mg/g 00093-3630-20 | Teva | 1 tube | $9.108 | AB | Availability likely | — |
| Acyclovir 50 mg/g 45802-0044-75 | Padagis | 1 tube | $9.108 | AB | Availability likely | — |
| Zovirax 50 mg/g 00187-0994-45 | Bausch | 1 tube | $38.247 | AB | FDA listed | — |
| Zovirax 50 mg/g 00187-0993-95 | Bausch | 1 tube | — | AB | FDA listed | — |
| Acyclovir 50 mg/gthis 43547-0499-42 | Solco | 1 tube | — | — | FDA listed | — |
| acyclovir 50 mg/g 50090-6561-00 | A-S | 1 tube | — | AB | FDA listed | — |
| Acyclovir 50 mg/g 62332-0248-05 | Alembic | 1 tube | — | AB | FDA listed | — |
| Acyclovir 50 mg/g 63629-2327-01 | Bryant | 30 g | — | AB | FDA listed | — |
| Acyclovir 50 mg/g 63629-2328-01 | Bryant | 15 g | — | AB | FDA listed | — |
| acyclovir 50 mg/g 68071-3909-05 | NuCare | 1 tube | — | AB | FDA listed | — |
| acyclovir 50 mg/g 68788-8247-01 | Preferred | 1 tube | — | AB | FDA listed | — |
| acyclovir 50 mg/g 70771-1371-01 | Zydus | 1 tube | — | AB | FDA listed | — |
| Acyclovir 50 mg/g 72162-1960-02 | Bryant | 15 g | — | AB | FDA listed | — |
| acyclovir 50 mg/g 85766-0115-15 | Sportpharm | 1 tube | — | AB | FDA listed | — |
| Acyclovir 50 mg/g 85957-0036-01 | Aryeh | 2 tubes | — | AB | FDA listed | — |
| Acyclovir 50 mg/g 72162-2327-02 | Bryant | 1 tube | — | AB | FDA listed | — |
| Acyclovir 50 mg/g 70771-1808-02 | Zydus | 1 tube | — | BX | FDA listed | — |
| Acyclovir 50 mg/g 72578-0101-04 | Viona | 1 tube | — | BX | FDA listed | — |
| acyclovir 50 mg/g 68788-4142-01 | c | 15 g | — | AB | FDA listed | — |
Where does this data come from?
⏳ Availability & generic status
This product is an FDA-approved generic. Other versions of the same drug are listed under Therapeutic equivalents, least expensive first.
Where does this data come from?
📊 Medicare Part D spend CMS · PART D · 2026 (Q1)
🔬 Reported adverse events (FAERS)
Top reported reactions
Age at onset
Reporter sex
Serious outcomes
Where does this data come from?
📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 43547-0499-41 | 1 TUBE in 1 CARTON (43547-499-41) / 30 g in 1 TUBE | 2021-11-15 | Active |
| 43547-0499-42 You're viewing this | 1 TUBE in 1 CARTON (43547-499-42) / 15 g in 1 TUBE | 2021-11-15 | Active |
Pack size FAQ
What quantity is in NDC 43547-0499-42?
What NDC number is used to bill for this package of ACYCLOVIR 50 mg/g Ointment?
🧭 About this NDC listing & data coverage
What data is (and isn’t) available for this NDC — tap to expand
| NDC identity (package / product / labeler codes) | ✓ Available |
| Labeler | ✓ Available |
| Product & package description | ✓ Available |
| Marketing category & status | ✓ Available |
| Active ingredient / dosage form / route | ✓ Available |
| FDA label (SPL via DailyMed) | ✓ Available |
| Package photos | ✓ Available |
| Inactive ingredients (structured) | ✓ Available |
| NADAC pharmacy acquisition price (CMS) | — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey. |
| Orange Book / therapeutic-equivalence data | — Not published for this NDC Applies only to products approved under an NDA/ANDA; many listings are out of scope. |
| HCPCS J-code billing crosswalk | — Not published for this NDC Most self-administered / retail products have no J-code — that is normal. |
| Medicaid utilization (CMS SDUD) | — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold. |
Questions about this listing
Why is there no price listed?
Is the NDC printed on the package the same as the 11-digit billing NDC?
What do the three segments of this NDC mean?
Is this package still being marketed?
Does this product come in other package sizes?
Who lists this product with the FDA?
Do I need a prescription for this product?
Where does this data come from?
📄 Full prescribing information FDA SPL
🎯 Indications and Usage ▾
INDICATIONS AND USAGE Acyclovir ointment 5% is indicated in the management of initial genital herpes and in limited nonlifethreatening mucocutaneous HSV infections in immune compromised patients.
⏱️ Dosage and Administration ▾
DOSAGE AND ADMINISTRATION Apply sufficient quantity to adequately cover all lesions every 3 hours, 6 times per day for 7 days. The dose size per application will vary depending upon the total lesion area but should approximate a one-half inch ribbon of ointment per 4 square inches of surface area. A finger cot or rubber glove should be used when applying acyclovir ointment to prevent autoinoculation of other body sites and transmission of infection to other persons.
Therapy should be initiated as early as possible following onset of signs and symptoms.
⛔ Contraindications ▾
CONTRAINDICATIONS Acyclovir ointment 5% is contraindicated in patients who develop hypersensitivity to the components of the formulation.
⚠️ Warnings ▾
WARNINGS Acyclovir ointment 5% is intended for cutaneous use only and should not be used in the eye.
🤒 Adverse Reactions ▾
ADVERSE REACTIONS In the controlled clinical trials, mild pain (including transient burning and stinging) was reported by about 30% of patients in both the active and placebo arms; treatment was discontinued in 2 of these patients. Local pruritus occurred in 4% of these patients. In all studies, there was no significant difference between the drug and placebo group in the rate or type of reported adverse reactions nor were there any differences in abnormal clinical laboratory findings.
Observed During Clinical Practice: Based on clinical practice experience in patients treated with acyclovir ointment in the U.S., spontaneously reported adverse events are uncommon. Data are insufficient to support an estimate of their incidence or to establish causation. These events may also occur as part of the underlying disease process.
Voluntary reports of adverse events that have been received since market introduction include: General: Edema and/or pain at the application site. Skin: Pruritus, rash. To report SUSPECTED ADVERSE REACTIONS, contact Solco Healthcare US, LLC at 1-866-257-2597 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch .
🆘 Overdosage ▾
OVERDOSAGE Overdosage by topical application of acyclovir ointment 5% is unlikely because of limited transcutaneous absorption (see CLINICAL PHARMACOLOGY ).
🧬 Clinical Pharmacology ▾
CLINICAL PHARMACOLOGY Two clinical pharmacology studies were performed with acyclovir ointment 5% in immune compromised adults at risk of developing mucocutaneous HSV infections or with localized varicella-zoster infections. These studies were designed to evaluate the dermal tolerance, systemic toxicity, and percutaneous absorption of acyclovir. In one of these studies, which included 16 inpatients, the complete ointment or its vehicle were randomly administered in a dose of 1-cm strips (25 mg acyclovir) 4 times a day for 7 days to an intact skin surface area of 4.5 square inches.
No local intolerance, systemic toxicity, or contact dermatitis were observed. In addition, no drug was detected in blood and urine by radioimmunoassay (sensitivity, 0.01 mcg/mL). The other study included 11 patients with localized varicella zoster infections.
In this uncontrolled study, acyclovir was detected in the blood of 9 patients and in the urine of all patients tested. Acyclovir levels in plasma ranged from <0.01 to 0.28 mcg/mL in 8 patients with normal renal function, and from <0.01 to 0.78 mcg/mL in 1 patient with impaired renal function. Acyclovir excreted in the urine ranged from <0.02% to 9.4% of the daily dose.
Therefore, systemic absorption of acyclovir after topical application is minimal.
📦 How Supplied / Storage and Handling ▾
HOW SUPPLIED Each gram of acyclovir ointment, USP 5% contains 50 mg acyclovir, USP in a polyethylene glycol base. Acyclovir ointment, USP 5% is a white to off white ointment, free of foreign matters, free of lumps, translucent, homogeneous, and no phase separation. It is supplied as follows: 15 g tubes NDC 43547-499-42 30 g tubes NDC 43547-499-41 Store at 15° to 25°C (59° to 77°F) in a dry place.
Manufactured by: UBI Pharma Inc. No. 45, Guangfu N.
Rd., Hukou, Hsinchu 30351, Taiwan (TWN) Distributed by: Solco Healthcare US, LLC Somerset, NJ 08873, USA Rev.: 09/2019 L187-01
📋 Description ▾
DESCRIPTION Acyclovir is a synthetic nucleoside analogue active against herpes viruses. Acyclovir ointment, USP 5% is a formulation for topical administration. Each gram of acyclovir ointment 5% contains 50 mg of acyclovir, USP in a polyethylene glycol (PEG) base.
Acyclovir is a white to off-white, crystalline powder with the molecular formula C 8 H 11 N 5 O 3 and a molecular weight of 225. The maximum solubility in water at 37°C is 2.5 mg/mL. The pka's of acyclovir are 2.27 and 9.25.
The chemical name of acyclovir is 2-amino-1,9-dihydro-9-[(2-hydroxyethoxy)methyl]-6 H -purin-6-one; it has the following structural formula: structural formula