Lidocaine Hydrochloride Topical Solution, USP Rx only

Manufacturer
Marlex Pharmaceuticals, Inc.
Effective date
2025-10-30
Label type
HUMAN PRESCRIPTION DRUG LABEL
Version
3
Source
full-release
Hydrated at
2026-05-31 22:03:44

Key Label Information#

Uses

INDICATIONS

Lidocaine hydrochloride is indicated for the production of topical anesthesia of accessible mucous membranes of the oral and nasal cavities and proximal portions of the digestive tract.

CONTRAINDICATIONS

Lidocaine hydrochloride is contraindicated in patients with a known hypersensitivity either to local anesthetics of the amide type or to the components of the topical solution.

Warnings

CONTRAINDICATIONS

Lidocaine hydrochloride is contraindicated in patients with a known hypersensitivity either to local anesthetics of the amide type or to the components of the topical solution.

WARNINGS

IN ORDER TO MANAGE POSSIBLE ADVERSE REACTIONS, RESUSCITATIVE EQUIPMENT, OXYGEN AND OTHER RESUSCITATIVE DRUGS MUST BE IMMEDIATELY AVAILABLE WHEN LOCAL ANESTHETIC AGENTS, SUCH AS LIDOCAINE, ARE ADMINISTERED TO MUCOUS MEMBRANES. Lidocaine hydrochloride should be used with extreme caution if there is sepsis or severely traumatized mucosa in the area of application, since under such conditions there is the potential for rapid systemic absorption. Methemoglobinemia Cases of methemoglobinemia have been reported in association with local anesthetic use. Although all patients are at risk for methemoglobinemia, patients with glucose-6-phosphate dehydrogenase deficiency, congenital or idiopathic methemoglobinemia, cardiac or pulmonary compromise, infants under 6 months of age, and concurrent exposure to oxidizing agents or their metabolites are more susceptible to developing clinical manifestations of the condition. If local anesthetics must be used in these patients, close monitoring for symptoms and signs of methemoglobinemia is recommended. Signs and symptoms of methemoglobinemia may occur immediately or may be delayed some hours after exposure, and are characterized by a cyanotic skin discoloration and abnormal coloration of the blood. Methemoglobin levels may continue to rise; therefore, immediate treatment is required to avert more serious central nervous system and cardiovascular adverse effects, including seizures, coma, arrhythmias, and death. Discontinue lidocaine and any other oxidizing agents. Depending on the severity of the symptoms, patients may respond to supportive care, i.e., oxygen therapy, hydration. More severe symptoms may require treatment with methylene blue, exchange transfusion, or hyperbaric oxygen.

Directions And Dosage

OVERDOSAGE

Acute emergencies from local anesthetics are generally related to high plasma levels encountered during therapeutic use of local anesthetics. (See ADVERSE REACTIONS, WARNINGS, and PRECAUTIONS) Management of Local Anesthetic Emergencies The first consideration is prevention, best accomplished by careful and constant monitoring of cardiovascular and respiratory vital signs and the patient’s state of consciousness after each local anesthetic administration. At the first sign of change, oxygen should be administered. The first steps in the management of convulsions consist of immediate attention to the maintenance of a patent airway and assisted or controlled ventilation with oxygen and a delivery system capable of permitting immediate positive airway pressure by mask. Immediately after the institution of these ventilatory measures, the adequacy of the circulation should be evaluated, keeping in mind that drugs used to treat convulsions sometimes depress the circulation when administered intravenously. Should convulsions persist despite adequate respiratory support, and if the status of the circulation permits, small increments of an ultra-short acting barbiturate (such as thiopental or thiamylal) or a benzodiazepine (such as diazepam) may be administered intravenously. The clinician should be familiar, prior to use of local anesthetics, with these anticonvulsant drugs. Supportive treatment of circulatory depression may require administration of intravenous fluids and, when appropriate, a vasopressor as indicated by the clinical situation (e.g., ephedrine). If not treated immediately, both convulsions and cardiovascular depression can result in hypoxia, acidosis, bradycardia, arrhythmias and cardiac arrest. If cardiac arrest should occur, standard cardiopulmonary resuscitative measures should be instituted. Dialysis is of negligible value in the treatment of acute overdosage with lidocaine. The intravenous LD 50 of lidocaine HCl in female mice is 26 (21-31) mg/kg and the subcutaneous LD 50 is 264 (203-304) mg/kg.

DOSAGE & ADMINISTRATION

When lidocaine hydrochloride topical solution 4% is used concomitantly with other products containing lidocaine, the total dose contributed by all formulations must be kept in mind. The dosage varies and depends upon the area to be anesthetized, vascularity of the tissues, individual tolerance and the technique of anesthesia. The lowest dosage needed to provide effective anesthesia should be administered. Dosages should be reduced for children and for elderly and debilitated patients. The maximum dose should not exceed 4.5 mg/kg (2 mg/lb) of body weight. Although the incidence of adverse effects with lidocaine hydrochloride topical solution 4% is quite low, caution should be exercised particularly when employing large volumes since the incidence of adverse effects is directly proportional to the total dose of local anesthetic agent administered. The dosages recommended below are for normal healthy adults: When used as a spray, or when applied by means of cotton applicators or packs, as when instilled into a cavity, the suggested dosage of lidocaine hydrochloride topical solution is 1-5 mL (40-200 mg of lidocaine hydrochloride), i.e., 0.6-3.0 mg/kg or 0.3-1.5 mg/lb of body weight. NOTE: The solution may be applied with a sterile swab which is discarded after use and never reused under any circumstances. When spraying, transfer the solution from the original container to an atomizer. Maximum Recommended Dosages: Normal Healthy Adults: The maximum recommended dose of lidocaine hydrochloride topical solution should be such that the dose of lidocaine hydrochloride is kept below 300 mg and in any case should never exceed 4.5 mg/kg (2 mg/lb) of body weight. Children: It is difficult to recommend a maximum dose of any drug for children since this varies as a function of age and weight. For children of less than ten years who have a normal lean body mass and normal body development, the maximum dose may be determined by the application of one of the standard pediatric drug formulas (e.g., Clark’s rule). For example, in a child of five years weighing 50 lbs., the dose of lidocaine should not exceed 75-100 mg when calculated according to Clark’s rule. In any case, the m...

Other Label Information

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL

Lidocaine Hydrochloride Topical Solution, USP 4% NDC 10135-736-51: Bottle of 50 mL Rx Only

PACKAGE CARTON. PRINCIPAL DISPLAY PANEL

Lidocaine Hydrochloride Topical Solution, USP 4% NDC 10135-736-51: Bottle of 50 mL Rx Only

Label Images#

structure
structure
bottle-label
bottle-label
carton-label
carton-label

DailyMed RxNorm Mappings#

RxCUI, RxNorm string, TTY table
RxCUIRxNorm stringTTYSPL version
1010878lidocaine HCl 4 % Mucous Membrane Topical SolutionPSN3
1010878lidocaine hydrochloride 40 MG/ML Mucous Membrane Topical SolutionSCD3
1010878lidocaine hydrochloride 4 % Mucous Membrane Topical SolutionSY3
1010878lidocaine hydrochloride 4 % Oromucosal SolutionSY3

DailyMed Pharmacologic Classes#

Class, Version, Type table
ClassVersionTypeEffective
LIDOCAINE Pharmacologic Class Indexing2Indexing - Pharmacologic Class20180813

DailyMed Product Concepts#

Product concept, Relation, Version table
Product conceptRelationVersionEffective
860a93dc-4863-49cc-b284-6bbe8191bc48Product name420250214
eaba870a-6a9d-442e-8643-87b3f558a451Product name120250117
9b4cf230-fd05-41d5-98c6-5db9ecb27b86Product name120230117
fa8b5901-e681-426f-82fe-54f6d81ec698Product name420180619
332d03e4-aa24-4b11-841a-02bf41081920Product name120171221
c08ab52f-2fc8-4409-9d9f-ed8edc0bd070Product name120171221
68ed98f8-24c2-44a0-944a-6d36e82ce25aProduct name120141222
1cd42bc2-a430-c72b-636d-991b235fbf80Product name120140508

DailyMed Package Descriptions#

Package NDC, Product, Description table
Package NDCProductDescriptionFormQuantityStrengthSPL version
10135-736-51Lidocaine Hydrochloride1 in 1 CARTONSOLUTION13
10135-736-51Lidocaine Hydrochloride50 mL in 1 BOTTLESOLUTION503

DailyMed Billing Units#

Package NDC, Billing unit, Product NDC table
Package NDCBilling unitProduct NDCDailyMed indexing SPLSPL versionEffective
10135-736-51ML - Milliliter10135-73624847f7c-1cf8-46a1-a386-27075e91bc8912022-07-06
70954-518-10ML - Milliliter70954-51897f04668-6226-4344-8220-3b1b0349fcbc12022-07-06

Products#

NDC Codes#

Product NDC, Package NDC table
Product NDCPackage NDC
10135-73610135-736-51
70954-518

Ingredients#

Complete SPL Sections#

DESCRIPTION

DESCRIPTION SECTION

Lidocaine Hydrochloride Topical Solution, USP contains a local anesthetic agent and is administered topically. See INDICATIONS for specific uses. Each mL contains: Lidocaine Hydrochloride, USP ................................................................................... 40 mg Methylparaben, Sodium Hydroxide (to adjust pH) in an aqueous solution. NOT FOR INJECTION. Lidocaine is a local anesthetic chemically designated as 2-(diethylamino)-N-(2,6-dimethyl-phenyl)-acetamide. It has the following structural formula:

CLINICAL PHARMACOLOGY

CLINICAL PHARMACOLOGY SECTION

Mechanism of Action Lidocaine stabilizes the neuronal membrane by inhibiting the ionic fluxes required for the initiation and conduction of impulses, thereby effecting local anesthetic action. Hemodynamics Excessive blood levels may cause changes in cardiac output, total peripheral resistance, and mean arterial pressure. These changes may be attributable to a direct depressant effect of the local anesthetic agent on various components of the cardiovascular system. Pharmacokinetics and Metabolism Lidocaine may be absorbed following topical administration to mucous membranes, its rate of absorption and percent of dose absorbed depending upon concentration and total dose administered, the specific site of application, and duration of exposure. In general, the rate of absorption of local anesthetic agents following topical application occurs most rapidly after intratracheal administration. Lidocaine is also well-absorbed from the gastrointestinal tract, but little intact drug appears in the circulation because of biotransformation in the liver. Lidocaine is metabolized rapidly by the liver, and metabolites and unchanged drug are excreted by the kidneys. Biotransformation includes oxidative N-dealkylation, ring hydroxylation, cleavage of the amide linkage, and conjugation. N-dealkylation, a major pathway of biotransformation, yields the metabolites monoethylglycinexylidide and glycinexylidide. The pharmacological/toxicological actions of these metabolites are similar to, but less potent than, those of lidocaine. Approximately 90% of lidocaine administered is excreted in the form of various metabolites, and less than 10% is excreted unchanged. The primary metabolite in urine is a conjugate of 4-hydroxy-2,6-dimethylaniline. The plasma binding of lidocaine is dependent on drug concentration, and the fraction bound decreases with increasing concentration. At concentrations of 1 to 4 mcg of free base per ml, 60 to 80 percent of lidocaine is protein bound. Binding is also dependent on the plasma concentration of the alpha-1-acid glycoprotein. Lidocaine crosses the blood-brain and placental barriers, presumably by passive diffusion. Studies of lidocaine metabolism following intravenous bolus injections have shown that the elimination half-life of this agent is typically 1.5 to 2 hours. Because of the rapid rate at which lidocaine is metabolized, any condition that affects liver function may alter lidocaine kinetics. The half-life may be prolonged two-fold or more in patients with liver dysfunction. Renal dysfunction does not affect lidocaine kinetics but may increase the accumulation of metabolites. Factors such as acidosis and the use of CNS stimulants and depressants affect the CNS levels of lidocaine required to produce overt systemic effects. Objective adverse manifestations become increasingly apparent with increasing venous plasma above 6 mcg free base per ml. In the rhesus monkey arterial blood levels of 18-21 mcg/mL have been shown to be threshold for convulsive activity.

INDICATIONS

INDICATIONS & USAGE SECTION

Lidocaine hydrochloride is indicated for the production of topical anesthesia of accessible mucous membranes of the oral and nasal cavities and proximal portions of the digestive tract.

CONTRAINDICATIONS

CONTRAINDICATIONS SECTION

Lidocaine hydrochloride is contraindicated in patients with a known hypersensitivity either to local anesthetics of the amide type or to the components of the topical solution.

WARNINGS

WARNINGS SECTION

IN ORDER TO MANAGE POSSIBLE ADVERSE REACTIONS, RESUSCITATIVE EQUIPMENT, OXYGEN AND OTHER RESUSCITATIVE DRUGS MUST BE IMMEDIATELY AVAILABLE WHEN LOCAL ANESTHETIC AGENTS, SUCH AS LIDOCAINE, ARE ADMINISTERED TO MUCOUS MEMBRANES. Lidocaine hydrochloride should be used with extreme caution if there is sepsis or severely traumatized mucosa in the area of application, since under such conditions there is the potential for rapid systemic absorption. Methemoglobinemia Cases of methemoglobinemia have been reported in association with local anesthetic use. Although all patients are at risk for methemoglobinemia, patients with glucose-6-phosphate dehydrogenase deficiency, congenital or idiopathic methemoglobinemia, cardiac or pulmonary compromise, infants under 6 months of age, and concurrent exposure to oxidizing agents or their metabolites are more susceptible to developing clinical manifestations of the condition. If local anesthetics must be used in these patients, close monitoring for symptoms and signs of methemoglobinemia is recommended. Signs and symptoms of methemoglobinemia may occur immediately or may be delayed some hours after exposure, and are characterized by a cyanotic skin discoloration and abnormal coloration of the blood. Methemoglobin levels may continue to rise; therefore, immediate treatment is required to avert more serious central nervous system and cardiovascular adverse effects, including seizures, coma, arrhythmias, and death. Discontinue lidocaine and any other oxidizing agents. Depending on the severity of the symptoms, patients may respond to supportive care, i.e., oxygen therapy, hydration. More severe symptoms may require treatment with methylene blue, exchange transfusion, or hyperbaric oxygen.

PRECAUTIONS

PRECAUTIONS SECTION

ADVERSE REACTIONS

ADVERSE REACTIONS SECTION

Adverse experiences following the administration of lidocaine are similar in nature to those observed with other amide local anesthetic agents. These adverse experiences are, in general, dose-related and may result from high plasma levels caused by excessive dosage or rapid absorption, or may result from a hypersensitivity, idiosyncrasy or diminished tolerance on the part of the patient. Serious adverse experiences are generally systemic in nature. The following types are those most commonly reported: Central nervous system CNS manifestations are excitatory and/or depressant and may be characterized by lightheadedness, nervousness, apprehension, euphoria, confusion, dizziness, drowsiness, tinnitus, blurred or double vision, vomiting, sensations of heat, cold or numbness, twitching, tremors, convulsions, unconsciousness, respiratory depression and arrest. The excitatory manifestations may be very brief or may not occur at all, in which case the first manifestation of toxicity may be drowsiness merging into unconsciousness and respiratory arrest. Drowsiness following the administration of lidocaine is usually an early sign of a high blood level of the drug and may occur as a consequence of rapid absorption. Cardiovascular system: Cardiovascular manifestations are usually depressant and are characterized by bradycardia, hypotension, and cardiovascular collapse, which may lead to cardiac arrest. Allergic: Allergic reactions are characterized by cutaneous lesions, urticaria, edema or anaphylactoid reactions. Allergic reactions may occur as a result of sensitivity either to the local anesthetic agent or to other ingredients in the formulation. Allergic reactions as a result of sensitivity to lidocaine are extremely rare and, if they occur, should be managed by conventional means. The detection of sensitivity by skin testing is of doubtful value.

OVERDOSAGE

OVERDOSAGE SECTION

Acute emergencies from local anesthetics are generally related to high plasma levels encountered during therapeutic use of local anesthetics. (See ADVERSE REACTIONS, WARNINGS, and PRECAUTIONS) Management of Local Anesthetic Emergencies The first consideration is prevention, best accomplished by careful and constant monitoring of cardiovascular and respiratory vital signs and the patient’s state of consciousness after each local anesthetic administration. At the first sign of change, oxygen should be administered. The first steps in the management of convulsions consist of immediate attention to the maintenance of a patent airway and assisted or controlled ventilation with oxygen and a delivery system capable of permitting immediate positive airway pressure by mask. Immediately after the institution of these ventilatory measures, the adequacy of the circulation should be evaluated, keeping in mind that drugs used to treat convulsions sometimes depress the circulation when administered intravenously. Should convulsions persist despite adequate respiratory support, and if the status of the circulation permits, small increments of an ultra-short acting barbiturate (such as thiopental or thiamylal) or a benzodiazepine (such as diazepam) may be administered intravenously. The clinician should be familiar, prior to use of local anesthetics, with these anticonvulsant drugs. Supportive treatment of circulatory depression may require administration of intravenous fluids and, when appropriate, a vasopressor as indicated by the clinical situation (e.g., ephedrine). If not treated immediately, both convulsions and cardiovascular depression can result in hypoxia, acidosis, bradycardia, arrhythmias and cardiac arrest. If cardiac arrest should occur, standard cardiopulmonary resuscitative measures should be instituted. Dialysis is of negligible value in the treatment of acute overdosage with lidocaine. The intravenous LD 50 of lidocaine HCl in female mice is 26 (21-31) mg/kg and the subcutaneous LD 50 is 264 (203-304) mg/kg.

DOSAGE & ADMINISTRATION

DOSAGE & ADMINISTRATION SECTION

When lidocaine hydrochloride topical solution 4% is used concomitantly with other products containing lidocaine, the total dose contributed by all formulations must be kept in mind. The dosage varies and depends upon the area to be anesthetized, vascularity of the tissues, individual tolerance and the technique of anesthesia. The lowest dosage needed to provide effective anesthesia should be administered. Dosages should be reduced for children and for elderly and debilitated patients. The maximum dose should not exceed 4.5 mg/kg (2 mg/lb) of body weight. Although the incidence of adverse effects with lidocaine hydrochloride topical solution 4% is quite low, caution should be exercised particularly when employing large volumes since the incidence of adverse effects is directly proportional to the total dose of local anesthetic agent administered. The dosages recommended below are for normal healthy adults: When used as a spray, or when applied by means of cotton applicators or packs, as when instilled into a cavity, the suggested dosage of lidocaine hydrochloride topical solution is 1-5 mL (40-200 mg of lidocaine hydrochloride), i.e., 0.6-3.0 mg/kg or 0.3-1.5 mg/lb of body weight. NOTE: The solution may be applied with a sterile swab which is discarded after use and never reused under any circumstances. When spraying, transfer the solution from the original container to an atomizer. Maximum Recommended Dosages: Normal Healthy Adults: The maximum recommended dose of lidocaine hydrochloride topical solution should be such that the dose of lidocaine hydrochloride is kept below 300 mg and in any case should never exceed 4.5 mg/kg (2 mg/lb) of body weight. Children: It is difficult to recommend a maximum dose of any drug for children since this varies as a function of age and weight. For children of less than ten years who have a normal lean body mass and normal body development, the maximum dose may be determined by the application of one of the standard pediatric drug formulas (e.g., Clark’s rule). For example, in a child of five years weighing 50 lbs., the dose of lidocaine should not exceed 75-100 mg when calculated according to Clark’s rule. In any case, the maximum dose of lidocaine hydrochloride and epinephrine should not exceed 7 mg/kg (3.2 mg/lb) of body weight. When used without epinephrine, the amount of lidocaine hydrochloride administered should be such that the dose is kept below 300 mg and in any case should not exceed 4.5 mg/kg (2 mg/lb) of body weight.

HOW SUPPLIED

HOW SUPPLIED SECTION

Lidocaine Hydrochloride Topical Solution, USP 4% The 4% topical solution is supplied as a clear, colorless solution free from visible particulate matter. NDC 10135-736-51: Bottle of 50 mL Store at 20° to 25°C (68° to 77°F). [See USP Controlled Room Temperature.] All trademarks are the property of their respective owners. Manufactured for/ Distriubted by: Marlex Pharmaceuticals, Inc. New Castle, DE 19720 Rev. 05/22 NP

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL

Lidocaine Hydrochloride Topical Solution, USP 4% NDC 10135-736-51: Bottle of 50 mL Rx Only

PACKAGE CARTON. PRINCIPAL DISPLAY PANEL

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL

Lidocaine Hydrochloride Topical Solution, USP 4% NDC 10135-736-51: Bottle of 50 mL Rx Only

Source Document#

Source XML

Older Hydrated Versions#

Version, Effective date, Source table
VersionEffective dateSourceHydrated
22023-11-15full-release2026-05-31 20:55:12