How much does Ammonium Lactate cost?

Pricing for Ammonium Lactate varies by insurance plan, dose, and pharmacy. Our database does not show a fixed cost because prices change faster than we can verify. For current pharmacy prices, check your insurance's formulary tier (in the prior-authorization section), use the GoodRx or Cost Plus Drugs deep links on this page, or ask your pharmacist to run a test claim. If a copay card is listed, it usually drops the out-of-pocket significantly for commercial insurance.

Does Ammonium Lactate need prior authorization?

Ammonium Lactate appears on 1 payer formulary in our database. PA requirements vary by payer — see the prior-authorization table on this page for specifics. In general, specialty and brand-name drugs are more likely to require PA than generic equivalents.

Is there a copay card or patient assistance program for Ammonium Lactate?

We haven't verified an active copay card or PAP for Ammonium Lactate in our current data. Check NeedyMeds or RxAssist for independent directories, or submit what you find via our "Report a broken link" form.

What is Ammonium Lactate used to treat?

Ammonium Lactate (generic: Ammonium Lactate) is indicated for Ichthyosis Vulgaris. Click any condition name on this page for more detail.

Ammonium Lactate

Generic: Ammonium Lactate

Verified·Apr 23, 2026

Manufacturer: Sun
NDC: 70518-3619
RxCUI: 197362
Route: TOPICAL
ICD-10 indication: Q80.0

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About Ammonium Lactate

What is this medication? Ammonium lactate is a topical medication used primarily to treat dry, scaly skin conditions such as xerosis and ichthyosis vulgaris. It is a combination of lactic acid and ammonium hydroxide, functioning as both a humectant and a keratolytic agent. By increasing the moisture content of the skin and promoting the shedding of dead skin cells, it helps to restore a smoother and softer texture to the affected areas.

This medication is commonly prescribed when over-the-counter moisturizers are insufficient for managing severe dryness or thickening of the skin. It works by attracting water to the skin layers and breaking down the bonds that hold dead skin cells together, allowing them to slough off more easily. Because it contains an alpha-hydroxy acid, it can increase sensitivity to sunlight, so users are often advised to apply sunscreen and wear protective clothing while using this product.

Copay & patient assistance

Detailed copay and financial assistance information is not publicly available for this medication at this time. Please consult your pharmacist or the manufacturer's official patient support program for more details.

External links go directly to the manufacturer's portal. RxCopays does not receive compensation for referrals.

Compare pricing elsewhere

RxCopays doesn't sell drugs or take referral fees. Here are the transparent-pricing directories we recommend checking alongside your insurance formulary.

Cost Plus Drug Company

Mark Cuban's transparent-pricing pharmacy — manufacturer cost + 15% markup + $5 dispensing fee. No insurance needed. Search alphabetically for Ammonium Lactate.

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GoodRx

Compare local pharmacy prices with GoodRx coupons. Use the price with your insurance or without — whichever is cheaper.

Lookup Ammonium Lactate →

NeedyMeds

Independent nonprofit directory of patient assistance programs, copay cards, and charity co-pay foundations.

Search for Ammonium Lactate →

RxAssist

PAP directory maintained by Volunteers in Health Care at Brown University. Free, no ads.

Search PAPs →

We deep-link because transparency helps patients. None of these partners pay RxCopays.

Prescribing information

From the FDA-approved label for Ammonium Lactate. Official source: DailyMed (NLM) · Label effective Apr 14, 2026

Indications and usage

INDICATIONS AND USAGE Ammonium Lactate Cream, 12% is indicated for the treatment of ichthyosis vulgaris and xerosis.

Dosage and administration

DOSAGE AND ADMINISTRATION Apply to the affected areas and rub in thoroughly. Use twice daily or as directed by a physician.

Contraindications

CONTRAINDICATIONS Ammonium Lactate Cream, 12% is contraindicated in those patients with a history of hypersensitivity to any of the label ingredients.

Warnings

WARNING Sun exposure to areas of the skin treated with Ammonium Lactate Cream, 12% should be minimized or avoided (see PRECAUTIONS section). The use of Ammonium Lactate Cream, 12% should be discontinued if any hypersensitivity is observed.

Adverse reactions

ADVERSE REACTIONS In controlled clinical trials of patients with ichthyosis vulgaris, the most frequent adverse reactions in patients treated with Ammonium Lactate Cream, 12% were rash (including erythema and irritation) and burning/stinging. Each was reported in approximately 10 to 15% of patients. In addition, itching was reported in approximately 5% of patients. In controlled clinical trials of patients with xerosis, the most frequent adverse reactions in patients treated with Ammonium Lactate Cream, 12% were transient burning, in about 3% of patients, stinging, dry skin and rash, each reported in approximately 2% of patients.

Use in pregnancy

Pregnancy Teratogenic effects Animal reproduction studies have been performed in rats and rabbits at doses up to 0.7 and 1.5 times the human dose, respectively (600 mg/kg/day, corresponding to 3600 mg/m 2 /day in the rat and 7200 mg/m 2 /day in the rabbit) and have revealed no evidence of impaired fertility or harm to the fetus due to ammonium lactate cream. There are, however, no adequate and well-controlled studies in pregnant women. Because animal reproduction studies are not always predictive of human response, Ammonium Lactate Cream, 12% should be used during pregnancy only if clearly needed.

Label text is reproduced as-is from the FDA-approved label. We do not paraphrase, summarize, or omit. Content above is for informational purposes only and is not medical advice. Always consult your prescribing clinician or pharmacist before making decisions about your medication.

Conditions we've indexed resources for

Click a condition to see copay cards, grants, and PA rules specific to it. For the full list of FDA-approved indications, see Prescribing information above.

Ichthyosis VulgarisRare

Medicare Part D coverage

How Ammonium Lactate appears across Medicare Part D plan formularies nationally. Source: CMS monthly Prescription Drug Plan file (2026-04-30).

Covered by plans

50%

2,754 of 5,509 plans

Most common tier

Tier 2

On 61% of covering formularies

Prior authorization required

of covering formularies

Tier	Formularies on this tier	Share
Tier 1 (preferred generic)	91	28%
Tier 2 (generic)	201	61%
Tier 3 (preferred brand)	29	9%
Tier 4 (non-preferred brand)	8	2%

Step therapy: 0% of formularies

Quantity limits: 0% of formularies

Coverage breadth: 329 of 65 formularies

How to read this:plans on the same formulary share tier + PA rules. Your specific plan's copay depends on (a) the tier above, (b) your plan's cost-share for that tier, (c) whether you're in the initial coverage phase or past the 2026 $2,000 out-of-pocket cap. For your exact plan, check its Summary of Benefits or log in to your Medicare.gov account. Copay cards don't apply to Medicare (federal law).

Prior authorization & coverage

Payer	PA	Step therapy	Copay tier
— Medicare Part D	—	—	—

Payer

Step therapy

Copay tier

—

Medicare Part D

—

Related drugs

How this page is sourced

Drug identity verified against openFDA NDC Directory.
Label text (when shown) originates from NLM DailyMed.
Copay and assistance URLs verified periodically; if you hit a broken link, tell us.

Rare-disease navigation (specialists, trials, patient communities)

Ammonium Lactate treats a rare condition. For in-depth disease pages on our sister site:

UniteRare · Ichthyosis Vulgaris

UniteRare.org is our sister site for rare-disease navigation — same editorial team, same accuracy standards.