Care Science
4 mg/100mg · Patch
- Available without prescription
- Amide Local Anesthetic
- Active substance
- Lidocaine
- Made by
- ASO LLC
- Source
- Official label
Quoted from the official source. Not yet reviewed by Mediclarum — the leaflet in your pack is authoritative.
At a glance
Quoted from the official label · 2024-09-23
Not necessarily this product — shortages are reported per presentation. Your pharmacy will know. · Updated 2026-09-22 FDA drug shortages
Topical Analgesic
- For the temporary relief of pain
Adults and children 12 years and over:: clean and dry affected area peel film from patch and plastic liner and apply to the skin apply 1 patch at a time to affected area, not more than 3 to 4 times daily wash hands after applying patch remove patch from the skin after at most 8 hours application
Full directions ↓Large quantities on raw surfaces, blistered areas, wounds or damaged skin
All warnings ↓- Sold without a prescription
- FDA enforcement reports list no ongoing recall, and none from the last two years, for this product code · checked 2026-10-02
Every line above is selected, not written, from the official label. Nothing is reworded. DailyMed
What it is for
- For the temporary relief of pain
From the official label · 2024-09-23 · DailyMed
How it works
From the US prescribing label for the same active substance (LIDOCAINE). It describes the substance, not this exact product.
Lidocaine stabilizes the neuronal membrane by inhibiting the ionic fluxes required for the initiation and conduction of impulses, thereby effecting local anesthetic action.
Lidocaine is metabolized rapidly by the liver, and metabolites and unchanged drug are excreted by the kidneys.
Quoted from the prescribing label, sections “Mechanism of Action” and “Pharmacokinetics”. DailyMed · 2026-08-31
Do not take it if
- large quantities on raw surfaces, blistered areas, wounds or damaged skin
- if you are allergic to any ingredients of this product
Quoted from the official label, section “OTC — Do Not Use”.
How to take it
These directions are for this exact strength and form. Another one is different.
- Adults and children 12 years and over:
- clean and dry affected area peel film from patch and plastic liner and apply to the skin apply 1 patch at a time to affected area, not more than 3 to 4 times daily wash hands after applying patch remove patch from the skin after at most 8 hours application
- Children under 12 years of age:
- do not use, consult a physician before use.
Quoted from the official label, section “Dosage & Administration”.
Stop and get help if
skin reactions such as redness, itching, rash, excessive irritation, burning sensation, swelling or blistering occur condition worsens symptoms persist for more than 7 days symptoms clear up and occur again within a few days
Quoted from the official label, section “OTC — Stop Use”.
Other warnings
- For external use only
- Do not use large quantities on raw surfaces, blistered areas, wounds or damaged skin
- When using this product
- do not use other topical products do not allow contact with eyes or mucous membranes apply only to clean, dry, and untreated skin use only as directed
- Stop use and
- ask a doctor if skin reactions such as redness, itching, rash, excessive irritation, burning sensation, swelling or blistering occur condition worsens symptoms persist for more than 7 days symptoms clear up and occur again within a few days If pregnant or breast-feeding ask a health care professional before use.
- Keep out of reach of children.
- do not use other topical products do not allow contact with eyes or mucous membranes apply only to clean, dry, and untreated skin use only as directed
Quoted from the official label, section “Warnings”.
Pregnancy and breastfeeding
If pregnant or breast-feeding ask a health care professional before use.
Quoted from the official label, section “OTC — Pregnancy or Breast Feeding”.
Keep away from children
If put in mouth, get medical help or contact a Poison Control Center right away (1-800-222-1222).
Quoted from the official label, section “OTC — Keep Out of Reach of Children”.
Other information
Store at room temperature keep away from excessive heat do not exceed 100 o F (38 o C)
Quoted from the official label, section “OTC — Other Information”.
What kind of medicine it is
Topical Analgesic
Quoted from the official label, section “OTC — Purpose”.
Other ingredients
Relevant if you react to a dye, a preservative, lactose or gluten.
acrylic adhesive, polyester fabric
Quoted from the official label, section “Inactive Ingredients”.
Ingredients people check for
Lactose, gluten, dyes, sugars and other ingredients that matter with an allergy, intolerance or diet — as this product’s FDA label lists them.
This label’s list of inactive ingredients names none of: lactose, wheat or gluten, colour dyes, sugars, sugar alcohols, alcohol (ethanol), aspartame (phenylalanine), gelatin, peanut oil, soy, parabens, sulfites, titanium dioxide.
Quoted from the FDA label. A label that does not name an ingredient is not a guarantee that the product is free of it, and formulations change. With an allergy, check the pack and ask a pharmacist.
Every version of this medicine (4)
The same active substance, strength and kind of form, from every company that sells it — with what each label lists.
Showing 4 of 4
- Care ScienceThis oneWithout prescriptionASO LLCNames none of these
- Lidocaine Pain Relief PatchWithout prescriptionGERI-CARE PHARMACEUTICAL CORPSugar alcoholsTitanium dioxide
- MedlineWithout prescriptionMedline Industries, LPParabensTitanium dioxide
- WalgreensWithout prescriptionWALGREENSNames none of these
Same active substance, strength and form in other countries
Matched on active substance, strength and kind of form only. This is not a statement that the products are equivalent or interchangeable: other ingredients, release and approved uses can differ — ask a pharmacist before swapping.
Medicine passport: one printable page to show a pharmacist abroad
CanadaNo exact match for this strength and form
Details
| Made by | ASO LLC |
|---|---|
| Active substance | Lidocaine |
| Used in | Pain, sleep, mood, epilepsy and the brain |
| Strength | 4 mg/100mg |
| Form | Patch |
| Route | Topical |
| Packs | 5 CELLO PACK in 1 BOX / 3.374 mg in 1 CELLO PACK · 2 CELLO PACK in 1 BOX / 2.33 mg in 1 CELLO PACK |
| NDC | 51142-100 |
| NDC | 51142-101 |
Source: NDC Directory · 2026-09-13 · not reviewed by a clinician
Source: US Food and Drug Administration, NDC Directory. Reuse terms: US government work (FDA).
Other strengths and forms
2 products are sold under this name. Grouped by form; a number on a strength means several companies make it.
- Patch1 products
- 4 mg/100mg
- Kit1 products
Same active substance
These contain the same substance. That does not mean one can replace another — ask a pharmacist.