lidocaine hydrochloride 10 mg/mL Injection, Solution
Other active recalls for Lidocaine Hydrochloride (different manufacturers) — 6 · tap to view
🆔 Identity & classification
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🏷️ RxNorm drug class
This medicine belongs to the Antiarrhythmic class.
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🏭 Manufacturer & labeler
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🩺 Clinical
Lidocaine injection is used to treat arrhythmias (irregular heartbeats). Lidocaine injection is in a class of medications called antiarrhythmics. It works by acting on the heart muscle to improve the heart's rhythm.
Read the full MedlinePlus article ↗- It's best to avoid using two lidocaine products at the same time unless your doctor says it's okay. When you use multiple products containing a local anesthetic, the total amount a...
- Can I use a lidocaine patch and a lidocaine cream at the same time?
- No — please don't do this. Heat significantly increases how much lidocaine is absorbed through your skin, which can push drug levels in your blood higher than they should be. Stick...
- Can I put a heating pad on the area where I applied a lidocaine patch?
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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.
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UNII QTT17582CB
A strong acid used to adjust and maintain the proper pH level in liquid medicines, ensuring stability and preventing breakdown of active ingredients.
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UNII 451W47IQ8X
Sodium chloride is common table salt. It's used in medicines as a buffer to maintain proper pH, as a filler to add bulk, or to adjust the osmotic balance in liquid formulations.
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UNII 55X04QC32I
A strong alkaline chemical used to adjust and maintain the pH balance of liquid medicines. It helps keep the medicine stable and ensures it stays effective during storage.
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UNII 059QF0KO0R
Water is a liquid solvent that dissolves and mixes ingredients together in liquid medicines, syrups, and injections. It helps distribute the active drug evenly throughout the product.
4 inactive ingredients listed in the exact product block matched to this NDC.
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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
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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 mL | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | $0.322 | $16.11 / 50 ml |
| 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 · quarterly | No Part D plan price is available for this NDC in our data. | |
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🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Lidocaine Hydrochloride 10 mg/mL 55150-0163-30 | Eugia | 1 vial | $0.067 | AP | Availability likely | save 79% |
| Lidocaine Hydrochloride 10 mg/mL 23155-0940-41 | Heritage | 25 vials | $0.069 | AP | Availability likely | save 78% |
| Lidocaine Hydrochloride 10 mg/mL 55150-0162-05 | Eugia | 10 vials | $0.322 | AP | Availability likely | — |
| lidocaine hydrochloride 10 mg/mLthis 83634-0653-02 | Avenacy, | 25 vials | $0.322 | AP | Availability likely | — |
| Lidocaine Hydrochloride 10 mg/mL 72603-0350-10 | NorthStar | 10 vials | $0.871 | AP | Availability likely | +170% |
| Lidocaine Hydrochloride 10 mg/mL 55150-0161-02 | Eugia | 10 vials | $0.871 | AP | Availability likely | +170% |
| Lidocaine Hydrochloride 10 mg/mL 76420-0080-05 | Asclemed | 5 ml | — | AP | FDA listed | — |
| Lidocaine Hydrochloride 10 mg/mL 76420-0084-02 | Asclemed | 2 ml | — | AP | FDA listed | — |
| Lidocaine Hydrochloride 10 mg/mL 71872-7190-01 | Medical | 1 ampule | — | — | FDA listed | — |
| Lidocaine Hydrochloride 10 mg/mL 85766-0211-05 | Sportpharm | 10 vials | — | AP | FDA listed | — |
| Lidocaine Hydrochloride 10 mg/mL 55150-0158-72 | Eugia | 10 ampules | — | — | FDA listed | — |
| Lidocaine Hydrochloride 10 mg/mL 00409-4279-02 | Hospira, | 25 vials | — | AP | FDA listed | — |
| Lidocaine hydrochloride 10 mg/mL 80425-0268-01 | Advanced | 1 vial | — | AP | FDA listed | — |
| Lidocaine Hydrochloride 10 mg/mL 51662-1651-01 | HF | 5 ml | — | AP | FDA listed | — |
| Lidocaine Hydrochloride 10 mg/mL 00409-4713-02 | Hospira, | 5 cellos | — | AP | FDA listed | — |
| Lidocaine Hydrochloride 10 mg/mL 70756-0640-10 | Lifestar | 10 vials | — | AP | FDA listed | — |
| Lidocaine Hydrochloride 10 mg/mL 70756-0641-10 | Lifestar | 10 vials | — | AP | FDA listed | — |
| Lidocaine Hydrochloride 10 mg/mL 70756-0665-05 | Lifestar | 5 vials | — | AP | FDA listed | — |
| Lidocaine Hydrochloride 10 mg/mL 83854-0011-25 | Anthea | 25 vials | — | AP | FDA listed | — |
| Lidocaine Hydrochloride 10 mg/mL 55150-0159-74 | Eugia | 10 ampules | — | — | FDA listed | — |
| Lidocaine Hydrochloride 10 mg/mL 00781-3537-25 | Sandoz | 25 vials | — | AP | FDA listed | — |
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⏳ Availability & generic status
This product is an FDA-approved generic. Other versions of the same drug are listed under Therapeutic equivalents, least expensive first.
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🔬 Reported adverse events (FAERS)
Top reported reactions
Reporter sex
Serious outcomes
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📦 Packaging — all sizes for this product
| Package NDC | Description | Per unit | Per pack | Marketing start | Status |
|---|---|---|---|---|---|
| 83634-0653-02 You're viewing this | 25 VIAL, SINGLE-DOSE in 1 CARTON (83634-653-02) / 2 mL in 1 VIAL, SINGLE-DOSE (83634-653-41) | $0.3221 / mL | $16.11 | 2025-12-31 | Active |
| 83634-0653-05 | 25 VIAL, SINGLE-DOSE in 1 CARTON (83634-653-05) / 5 mL in 1 VIAL, SINGLE-DOSE (83634-653-42) | — | — | 2025-12-31 | Active |
| 83634-0653-30 | 25 VIAL, SINGLE-DOSE in 1 CARTON (83634-653-30) / 30 mL in 1 VIAL, SINGLE-DOSE (83634-653-43) | — | — | 2025-12-31 | Active |
Pack size FAQ
What quantity is in NDC 83634-0653-02?
What NDC number is used to bill for this package of lidocaine hydrochloride 10 mg/mL Injection, Solution?
Prices are the latest CMS NADAC pharmacy acquisition cost per NDC; per-pack figures are per-unit × pack quantity, shown only when the pack is denominated in the same measure NADAC prices.
📄 Full prescribing information FDA SPL
🎯 Indications and Usage ▾
1 INDICATIONS AND USAGE Lidocaine hydrochloride injection is indicated in adult and pediatric patients for the production of local or regional anesthesia or analgesia for surgery, dental, and oral surgery procedures, diagnostic and therapeutic procedures, and for obstetrical procedures. Specific concentrations and presentations of lidocaine hydrochloride injection are recommended for each type of block indicated to produce local or regional anesthesia or analgesia [see Dosage and Administration ( 2.2 )] . Lidocaine hydrochloride injection contains lidocaine, an amide local anesthetic.
Lidocaine hydrochloride injection is indicated in adult and pediatric patients for the production of local or regional anesthesia or analgesia for surgery, dental, and oral surgery procedures, diagnostic and therapeutic procedures, and for obstetrical procedures. For each type of block indicated to produce local or regional anesthesia or analgesia, specific concentrations and presentations are recommended. ( 1 , 2.2 )
⏱️ Dosage and Administration ▾
2 DOSAGE AND ADMINISTRATION See Full Prescribing Information for recommended dosages and administration information for adult and pediatric patients.
2.1Important Dosage and Administration Information Lidocaine hydrochloride injection is not recommended for intrathecal use. Avoid use of lidocaine hydrochloride injection solutions containing antimicrobial preservatives (i.e., multiple-dose vials) for epidural or caudal anesthesia [see Warnings and Precautions ( 5.3 )] . Discard unused portion of solution not containing preservatives, i.e., those supplied in single-dose vials, following initial use.
Visually inspect this product for particulate matter and discoloration prior to administration whenever solution and container permit. Lidocaine hydrochloride injection is a clear, colorless solutions. Do not administer solutions which are discolored or contain particulate matter.
Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration whenever the solution and container permit. Solutions which are discolored (e.g., pinkish or darker than slightly yellow) or which contain particulate matter or precipitate should not be administered. Mixing or the prior or intercurrent use of any other local anesthetic with lidocaine hydrochloride injection is not recommended because of insufficient data on the clinical use of such mixtures.
Administration Precautions Lidocaine hydrochloride injection is to be administered in carefully adjusted dosages by or under the supervision of experienced clinicians who are well versed in the diagnosis and management of dose-related toxicity and other acute emergencies which might arise from the block to be employed. Use lidocaine hydrochloride injection only if the following are immediately available: oxygen, cardiopulmonary resuscitative equipment and drugs, and the personnel resources needed for proper management of toxic reactions and related emergencies [see Warnings and Precautions ( 5.1 ), Adverse Reactions ( 6 ), and Overdosage ( 10 )].
The toxic effects of local anesthetics are additive. Monitor for neurologic and cardiovascular effects related to local anesthetic systemic toxicity when additional local anesthetics are administered with lidocaine hydrochloride injection [see Warnings and Precautions ( 5.1 ), Drug Interactions ( 7.1 ), and Overdosage ( 10 )]. Aspirate for blood or cerebrospinal fluid (where applicable) prior to injecting lidocaine hydrochloride injection, both the initial dose and all subsequent doses, to avoid intravascular or intrathecal injection.
However, a negative aspiration for blood or cerebrospinal fluid does not ensure against an intravascular or intrathecal injection [see Warnings and Precautions ( 5.7 )] . Avoid rapid injection of a large volume of lidocaine hydrochloride injection and use fractional (incremental) doses when feasible. During major regional nerve blocks, such as those of the brachial plexus or lower extremity, the patient should have an indwelling intravenous catheter to assure adequate intravenous access.
The lowest dosage of lidocaine hydrochloride injection that results in effective anesthesia should be used to avoid high plasma levels and serious adverse reactions. Perform careful and constant monitoring of cardiovascular and respiratory (adequacy of oxygenation and ventilation) vital signs and the patient's level of consciousness after each local anesthetic injection. Use lidocaine hydrochloride injection in carefully restricted quantities in areas of the body supplied by end arteries or having otherwise compromised blood supply such as digits, nose, external ear, or penis.
2.2Recommended Concentrations and Dosages of Lidocaine Hydrochloride Injection in Adults The dosage of lidocaine hydrochloride injection administered varies with the anesthetic procedure, the area to be anesthetized, the vascularity of the tissues, the number of neuronal segments to be blocked, the depth of anesthesia and…
💊 Dosage Forms and Strengths ▾
3 DOSAGE FORMS AND STRENGTHS Lidocaine hydrochloride injection, USP: 1% Lidocaine hydrochloride injection, USP (MPF): 1% Lidocaine hydrochloride injection, USP is a clear, colorless solution available as: 1% (100 mg per 10 mL) (10 mg per mL), 10 mL multiple-dose vials 1% (200 mg per 20 mL) (10 mg per mL), 20 mL multiple-dose vials 1% (500 mg per 50 mL) (10 mg per mL), 50 mL multiple-dose vials Lidocaine hydrochloride injection, USP – MPF* is a clear colorless solution available as: 1% (20 mg per 2 mL) (10 mg per mL), 2 mL single-dose vials 1% (50 mg per 5 mL) (10 mg per mL), 5 mL single-dose vials 1% (300 mg per 30 mL) (10 mg per mL), 30 mL single-dose vials * Dosage forms listed as Lidocaine hydrochloride injection, USP – MPF indicate single-dose solutions that are Methylparaben Free (MPF).
⛔ Contraindications ▾
4 CONTRAINDICATIONS Lidocaine hydrochloride injection is contraindicated in patients with a known hypersensitivity to lidocaine or to any local anesthetics of the amide type or to other components of lidocaine hydrochloride injection. Known hypersensitivity to any local anesthetic agent of the amide-type or to other components of lidocaine hydrochloride injection.
⚠️ Warnings and Cautions ▾
5 WARNINGS AND PRECAUTIONS Dose-Related Toxicity : Monitor cardiovascular and respiratory vital signs and patient's state of consciousness after injection of lidocaine hydrochloride injection. ( 5.1 ) Methemoglobinemia : Cases of methemoglobinemia have been reported in association with local anesthetics use. See full prescribing information for more details on managing these risks.
( 5.2 ) Chondrolysis with Intra-Articular Infusion : Avoid Intra-articular infusions as there have been post-marketing reports of chondrolysis in patients receiving such infusion. ( 5.4 ) Allergic-Type Reactions to Sulfites in Lidocaine Hydrochloride Injection and Anaphylactic Reactions: Lidocaine hydrochloride injection without epinephrine does not contain sodium metabisulfite. ( 5.6 ) Risk of Systemic Toxicities with Unintended Intravascular or Intrathecal Injection : Unintended intravascular or intrathecal injection may be associated with systemic toxicities, including CNS or cardiorespiratory depression and coma, progression ultimately to respiratory arrest.
Aspirate for blood or cerebrospinal fluid (where applicable) prior to each dose and consider using a test dose of lidocaine hydrochloride injection. ( 5.7 )
5.1Dose-Related Toxicity The safety and effectiveness of lidocaine hydrochloride injection depends on proper dosage, correct technique, adequate precautions, and readiness for emergencies. Careful and constant monitoring of cardiovascular and respiratory (adequacy of ventilation) vital signs and the patient's state of consciousness should be performed after injection of lidocaine hydrochloride solutions. Possible early warning signs of central nervous system (CNS) toxicity are restlessness, anxiety, incoherent speech, lightheadedness, numbness and tingling of the mouth and lips, metallic taste, tinnitus, dizziness, blurred vision, tremors, twitching, CNS depression, or drowsiness.
Delay in proper management of dose-related toxicity, underventilation from any cause, and/or altered sensitivity may lead to the development of acidosis, cardiac arrest, and, possibly, death. During major regional nerve blocks, such as those of the brachial plexus or lower extremity, the patient should have an indwelling intravenous catheter to assure adequate intravenous access. Use the lowest dosage of lidocaine hydrochloride injection that results in effective anesthesia to avoid high plasma levels and serious adverse effects.
Avoid rapid injection of a large volume of lidocaine hydrochloride injection solution and administer fractional (incremental) doses when feasible. Injection of repeated doses of lidocaine hydrochloride injection may cause significant increases in plasma levels with each repeated dose due to slow accumulation of the drug or its metabolites, or to slow metabolic degradation. Tolerance to elevated blood levels varies with the status of the patient.
Debilitated, elderly patients and acutely ill patients should be given reduced doses commensurate with their age and physical status.
5.2Methemoglobinemia 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 [see Drug Interactions ( 7.5 )] . If local anesthetics must be used in these patients, close monitoring for symptoms and signs of methemoglobinemia is recommended.
Signs 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 Reactions ▾
6 ADVERSE REACTIONS The following clinically significant adverse reactions have been reported and described in the Warnings and Precautions section of the labeling: Dose-Related Toxicity [see Warnings and Precautions ( 5.1 )] Methemoglobinemia [see Warnings and Precautions ( 5.2 )] Chondrolysis with Intra-Articular Infusion [see Warnings and Precautions ( 5.4 )] Severe, Persistent Hypertension, Cerebrovascular Accidents, and Bradycardia Due to Drug Interactions [see Warnings and Precautions ( 5.5 )] Allergic-Type Reactions [see Warnings and Precautions ( 5.6 )] Systemic Toxicities with Unintended Intravascular or Intrathecal Injection [see Warnings and Precautions ( 5.7 )] Respiratory Arrest Following Retrobulbar Block [see Warnings and Precautions ( 5.14 )] The following adverse reactions from voluntary reports or clinical studies have been reported with lidocaine or lidocaine and epinephrine.
Because many of these reactions were reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Adverse reactions to lidocaine hydrochloride injection are characteristic of those associated with other amide-type local anesthetic. A major cause of adverse reactions to this group of drugs is excessive plasma levels, which may be due to overdosage, unintentional intravascular injection, or slow metabolic degradation.
The most commonly encountered acute adverse reactions that demand immediate counter measures were related to the CNS and the cardiovascular system. These adverse reactions were generally dose-related and due to high plasma levels which may have resulted from overdosage, rapid absorption from the injection site, diminished tolerance, or from unintentional intravascular injection of the local anesthetic solution. In addition to systemic does-related toxicity, unintentional intrathecal injection of drug during the intended performance of caudal or lumbar epidural block or nerve blocks near the vertebral column (especially in the head and neck region) has resulted in underventilation or apnea (“Total or High Spinal”).
Also, hypertension due to loss of sympathetic tone and respiratory paralysis or underventilation due to cephalad extension of the motor level of anesthesia have occurred. This has led to secondary cardiac arrest when untreated. When used for dental injections, paresthesia of the lips, tongue, and oral tissues have been reported.
Persistent paresthesia lasting weeks to months and, in some instances, lasting greater than one year, have also been reported. Most common adverse reactions are as follows: Central Nervous System: 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. ( 6 ) Cardiovascular System: Bradycardia, hypotension, and cardiovascular collapse.
( 6 ) Allergic: Cutaneous lesions, urticaria, edema or anaphylactoid reactions. ( 6 ) Neurologic: Positional headaches, hypotension and backache. ( 6 ) Hematologic: Methemoglobinemia.
( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Avenacy at 1-855-283-6229 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . Nervous System Disorders Adverse reactions were characterized by excitation and/or depression of the central nervous system and included 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 incidences of adverse reactions associated with the use of local anesthetics may be related to the total dose of local anesthetic administered and are also dependent upon the particular drug used, the route of administration and the physical status of th…
🔄 Drug Interactions ▾
7 DRUG INTERACTIONS Local Anesthetics : The toxic effects of local anesthetics are additive. Monitor for neurologic and cardiovascular effects when additional local anesthetics are administered. ( 7.1 ) Monoamine Oxidase Inhibitors and Tricyclic Antidepressants : Administration of lidocaine hydrochloride injection to patients receiving monoamine oxidase inhibitors or tricyclic antidepressants may produce severe, prolonged hypertension Concurrent use of these agents should generally be avoided.
( 5.5 , 7.2 ) Ergot-type Oxytocic Drugs : Concurrent administration of lidocaine hydrochloride injection and ergot-type oxytocic drugs may cause severe, persistent hypertension or cerebrovascular accidents. ( 5.5 , 7.3 ) Nonselective Beta-Adrenergic Antagonists : Administration of lidocaine hydrochloride injection in patients receiving nonselective beta-adrenergic antagonist may cause severe hypertension and bradycardia. Concurrent use of these agents should generally be avoided.
( 5.5 , 7.4 ) Drugs Associated with Methemoglobinemia : Patients are at increased risk of developing methemoglobinemia when concurrently exposed to nitrates, nitrites, local anesthetics, antineoplastic agents, antibiotics, antimalarials, anticonvulsants and other drugs. ( 7.5 ). Geriatric Use : Elderly patients should be given reduced doses commensurate with their age and physical condition.
( 8.5 ) Hepatic Impairment : consider reduced dosing and increased monitoring for local anesthetic systemic toxicity in patients with hepatic impairment. ( 8.6 )
7.1Local Anesthetics The toxic effects of local anesthetics are additive. If coadministration of other local anesthetics with lidocaine hydrochloride injection cannot be avoided, monitor patients for neurologic and cardiovascular effects related to local anesthetic systemic toxicity [see Warnings and Precautions ( 5.1 )].
7.2Monoamine Oxidase Inhibitors and Tricyclic Antidepressants The administration of lidocaine hydrochloride injection to patients receiving monoamine oxidase inhibitors or tricyclic antidepressants may produce severe, prolonged hypertension. Concurrent use of these agents should generally be avoided. In situations when concurrent therapy is necessary, careful monitoring of the patient's hemodynamic status is essential [see Warnings and Precautions ( 5.5 )].
7.3Ergot-Type Oxytocic Drugs Concurrent administration of vasopressor drugs (for the treatment of hypotension related to obstetric blocks) and ergot-type oxytocic drugs may cause severe, persistent hypertension or cerebrovascular accidents. Avoid use of lidocaine hydrochloride injection concomitantly with ergot-type oxytocic drugs [see Warnings and Precautions ( 5.5 )].
7.4Nonselective Beta-Adrenergic Antagonists Administration of lidocaine hydrochloride injection in patients receiving nonselective beta-adrenergic antagonists may cause severe hypertension and bradycardia. Concurrent use of these agents should generally be avoided. In situations when concurrent therapy is necessary, careful monitoring of the patient's blood pressure and heart rate is essential [see Warnings and Precautions ( 5.5 )].
7.5Drugs Associated with Methemoglobinemia Patients that are administered local anesthetics may be at increased risk of developing methemoglobinemia when concurrently exposed to the following oxidizing agents: Class Examples Nitrates/Nitrites nitroglycerin, nitroprusside, nitric oxide, nitrous oxide Local anesthetics articaine, benzocaine, bupivacaine, lidocaine, mepivacaine, prilocaine, procaine, ropivacaine, tetracaine Antineoplastic agents cyclophosphamide, flutamide, rasburicase, ifosfamide, hydroxyurea Antibiotics dapsone, sulfonamides, nitrofurantoin, para-aminosalicylic acid Antimalarials chloroquine, primaquine Anticonvulsants phenytoin, sodium valproate, phenobarbital Other drugs acetaminophen, metoclopramide, quinine, sulfasalazine
🔄 Drug / Laboratory Test Interactions ▾
5.16Drug/Laboratory Test Interactions The intramuscular injection of lidocaine HCl may result in an increase in creatine phosphokinase levels. Thus, the use of this enzyme determination, without isoenzyme separation, as a diagnostic test for the presence of acute myocardial infarction may be compromised by the intramuscular injection of lidocaine HCl.
👥 Use in Specific Populations ▾
8 USE IN SPECIFIC POPULATIONS
8.1Pregnancy Risk Summary Available published data and decades of clinical use with lidocaine hydrochloride injection in pregnant women have not identified any drug-associated risk for major birth defects, miscarriage, or other adverse maternal or fetal outcomes. Local anesthetics may cause varying degrees of toxicity to the mother and fetus and adverse reactions include alterations of the central nervous system, peripheral vascular tone and cardiac function (see Clinical Considerations ). In a published animal reproduction study, pregnant rats administered lidocaine by continuous subcutaneous infusion at a dose approximately 9.6 times the maximum recommended human dose (MRHD) of 500 mg in lidocaine hydrochloride injection during the period of organogenesis resulted in lower fetal body weights [see Data ].
The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defects, loss, or other adverse outcomes. In the United States general population, the estimated background risks of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively.
Clinical Considerations Maternal adverse reactions Maternal hypotension has resulted from regional anesthesia. Local anesthetics produce vasodilation by blocking sympathetic nerves. Therefore, during treatment of systemic toxicity, maternal hypotension or fetal bradycardia following regional block, the parturient should be maintained in the left lateral decubitus position if possible or manual displacement of the uterus off the great vessels be accomplished.
Elevating the patient's legs will also help prevent decreases in blood pressure. The fetal heart rate also should be monitored continuously, and electronic fetal monitoring is highly advisable. Labor or delivery Local anesthetics rapidly cross the placenta, and when used for epidural, paracervical, pudendal or caudal block anesthesia, can cause varying degrees of maternal, fetal and neonatal toxicity [see Clinical Pharmacology ( 12.3 )].
The incidence and degree of toxicity depend upon the procedure performed, the type and amount of drug used, and the technique of drug administration. Adverse reactions in the parturient, fetus and neonate involve alterations of the central nervous system, peripheral vascular tone and cardiac function. However, dosage recommendations for spinal anesthesia are much lower than dosage recommendations for other major blocks.
Spinal anesthesia may alter the forces of parturition through changes in uterine contractility or maternal expulsive efforts. Spinal anesthesia has also been reported to prolong the second stage of labor by removing the parturient's reflex urge to bear down or by interfering with motor function. The use of obstetrical anesthesia may increase the need for forceps assistance.
The use of some local anesthetic drug products during labor and delivery may be followed by diminished muscle strength and tone for the first day or two of life. Data Animal Data Reproduction studies have been performed in rats at doses up to 6.6 times the human dose and have revealed no evidence of harm to the fetus caused by lidocaine hydrochloride. In a published study, lidocaine administered to pregnant rats by continuous subcutaneous infusion during the period of organogenesis at 100, 250, and 500 mg/kg/day, did not produce any structural abnormalities, but did result in lower fetal weights at 500 mg/kg/day dose (approximately 9.6 times the maximum recommended human dose [MRHD] of 500 mg lidocaine on a mg/m 2 basis) in the absence of maternal toxicity.
8.2Lactation Risk Summary Published data report the presence of lidocaine and its metabolites in human milk in low amounts, along with poor oral bioavailability. There are no data on the effect of lidocaine on the breastfed infant or the effect on milk production. The developmental and…
🤰 Pregnancy ▾
8.1Pregnancy Risk Summary Available published data and decades of clinical use with lidocaine hydrochloride injection in pregnant women have not identified any drug-associated risk for major birth defects, miscarriage, or other adverse maternal or fetal outcomes. Local anesthetics may cause varying degrees of toxicity to the mother and fetus and adverse reactions include alterations of the central nervous system, peripheral vascular tone and cardiac function (see Clinical Considerations ). In a published animal reproduction study, pregnant rats administered lidocaine by continuous subcutaneous infusion at a dose approximately 9.6 times the maximum recommended human dose (MRHD) of 500 mg in lidocaine hydrochloride injection during the period of organogenesis resulted in lower fetal body weights [see Data ].
The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defects, loss, or other adverse outcomes. In the United States general population, the estimated background risks of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively.
Clinical Considerations Maternal adverse reactions Maternal hypotension has resulted from regional anesthesia. Local anesthetics produce vasodilation by blocking sympathetic nerves. Therefore, during treatment of systemic toxicity, maternal hypotension or fetal bradycardia following regional block, the parturient should be maintained in the left lateral decubitus position if possible or manual displacement of the uterus off the great vessels be accomplished.
Elevating the patient's legs will also help prevent decreases in blood pressure. The fetal heart rate also should be monitored continuously, and electronic fetal monitoring is highly advisable. Labor or delivery Local anesthetics rapidly cross the placenta, and when used for epidural, paracervical, pudendal or caudal block anesthesia, can cause varying degrees of maternal, fetal and neonatal toxicity [see Clinical Pharmacology ( 12.3 )].
The incidence and degree of toxicity depend upon the procedure performed, the type and amount of drug used, and the technique of drug administration. Adverse reactions in the parturient, fetus and neonate involve alterations of the central nervous system, peripheral vascular tone and cardiac function. However, dosage recommendations for spinal anesthesia are much lower than dosage recommendations for other major blocks.
Spinal anesthesia may alter the forces of parturition through changes in uterine contractility or maternal expulsive efforts. Spinal anesthesia has also been reported to prolong the second stage of labor by removing the parturient's reflex urge to bear down or by interfering with motor function. The use of obstetrical anesthesia may increase the need for forceps assistance.
The use of some local anesthetic drug products during labor and delivery may be followed by diminished muscle strength and tone for the first day or two of life. Data Animal Data Reproduction studies have been performed in rats at doses up to 6.6 times the human dose and have revealed no evidence of harm to the fetus caused by lidocaine hydrochloride. In a published study, lidocaine administered to pregnant rats by continuous subcutaneous infusion during the period of organogenesis at 100, 250, and 500 mg/kg/day, did not produce any structural abnormalities, but did result in lower fetal weights at 500 mg/kg/day dose (approximately 9.6 times the maximum recommended human dose [MRHD] of 500 mg lidocaine on a mg/m 2 basis) in the absence of maternal toxicity.
🧒 Pediatric Use ▾
8.4Pediatric Use Dosages in children should be reduced, commensurate with age, body weight and physical condition [see Dosage and Administration ( 2.6 )].
🧓 Geriatric Use ▾
8.5Geriatric Use Elderly patients should be given reduced doses commensurate with their age and physical condition [see Dosage and Administration ( 2.6 )].
🆘 Overdosage ▾
10 OVERDOSAGE Clinical Presentation Acute emergencies from local anesthetics are generally related to high plasma levels encountered during therapeutic use of local anesthetics or to unintended subarachnoid injection of local anesthetic solution [see Warnings and Precautions ( 5.1 ) and Adverse Reactions ( 6 )]. Management 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 injection.
At the first sign of change, oxygen should be administered. The first step in the management of convulsions, as well as underventilation or apnea due to unintended subarachnoid injection of drug solution, consists 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, a benzodiazepine (such as diazepam) may be administered intravenously. The clinician should be familiar, prior to the 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 directed 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. Underventilation or apnea due to unintentional subarachnoid injection of local anesthetic solution may produce these same signs and also lead to cardiac arrest if ventilatory support is not instituted. If cardiac arrest should occur, standard cardiopulmonary resuscitative measures should be instituted.
Endotracheal intubation, employing drugs and techniques familiar to the clinician, may be indicated, after initial administration of oxygen by mask, if difficulty is encountered in the maintenance of a patent airway or if prolonged ventilatory support (assisted or controlled) is indicated. Dialysis is of negligible value in the treatment of acute overdosage with lidocaine hydrochloride.
🧬 Clinical Pharmacology ▾
12 CLINICAL PHARMACOLOGY
12.1Mechanism of Action Lidocaine hydrochloride stabilizes the neuronal membrane by inhibiting the ionic fluxes required for the initiation and conduction of impulses thereby effecting local anesthetic action.
12.2Pharmacodynamics Excessive blood levels may cause changes in cardiac output, total peripheral resistance, and mean arterial pressure. With central neural blockade these changes may be attributable to block of autonomic fibers, a direct depressant effect of the local anesthetic agent on various components of the cardiovascular system, and/or the beta-adrenergic receptor stimulating action of epinephrine when present. The net effect is normally a modest hypotension when the recommended dosages are not exceeded.
Factors such as acidosis and the use of CNS stimulants and depressants affect the CNS levels of lidocaine hydrochloride required to produce overt systemic effects. Objective adverse manifestations become increasingly apparent with increasing venous plasma levels above 6 mcg free base per mL.
12.3Pharmacokinetics Systemic plasma levels of lidocaine following lidocaine hydrochloride injection do not correlate with local efficacy. Absorption Information derived from diverse formulations, concentrations and usages reveals that lidocaine hydrochloride is completely absorbed following parenteral administration, its rate of absorption depending, for example, upon various factors such as the site of administration and the presence or absence of a vasoconstrictor agent. Except for intravascular administration, the highest blood levels are obtained following intercostal nerve block and the lowest after subcutaneous administration.
Distribution The plasma binding of lidocaine hydrochloride 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 hydrochloride is protein bound. Binding is also dependent on the plasma concentration of the alpha-1-acid glycoprotein.
Lidocaine hydrochloride crosses the blood-brain and placental barriers, presumably by passive diffusion. Elimination The elimination half-life of lidocaine hydrochloride following an intravenous bolus injection is typically 1.5 to 2 hours. Metabolism Lidocaine hydrochloride is metabolized rapidly by the liver, and 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 hydrochloride. Excretion Approximately 90% of lidocaine hydrochloride administered is excreted in the form of various metabolites, and less than 10% is excreted unchanged by the kidneys.
The primary metabolite in urine is a conjugate of 4-hydroxy-2,6-dimethylaniline. Specific Populations Patients with Hepatic Impairment Because of the rapid rate at which lidocaine hydrochloride is metabolized, any condition that affects liver function may alter lidocaine HCl kinetics. The half-life may be prolonged two-fold or more in patients with liver dysfunction.
Patients with Renal Impairment Renal dysfunction does not affect lidocaine hydrochloride kinetics but may increase the accumulation of metabolites.
🧬 Mechanism of Action ▾
12.1Mechanism of Action Lidocaine hydrochloride stabilizes the neuronal membrane by inhibiting the ionic fluxes required for the initiation and conduction of impulses thereby effecting local anesthetic action.
📦 How Supplied / Storage and Handling ▾
16 HOW SUPPLIED/STORAGE AND HANDLING Lidocaine hydrochloride injection, USP is a clear, colorless solution supplied as follows: Lidocaine Hydrochloride Injection, USP (1%) NDC (10 mg per mL) Package Factor 83634-651-10 100 mg per 10 mL Multiple-Dose Vial 25 vials per carton 83634-651-20 200 mg per 20 mL Multiple-Dose Vial 25 vials per carton 83634-651-50 500 mg per 50 mL Multiple-Dose Vial 25 vials per carton Lidocaine Hydrochloride Injection, USP (1%) NDC (10 mg per mL) – MPF Package Factor 83634-653-02 20 mg per 2 mL Single-Dose Vial 25 vials per carton 83634-653-05 50 mg per 5 mL Single-Dose Vial 25 vials per carton 83634-653-30 300 mg per 30 mL Single-Dose Vial 25 vials per carton Storage Conditions Store at 20° to 25°C (68° to 77°F); excursions permitted between 15° and 30°C (59° and 86°F). [See USP Controlled Room Temperature.] Protect from light.
For Single-Dose Vials: Discard unused portion. Sterile, Nonpyrogenic. The container closure is not made with natural rubber latex.
📦 Storage and Handling ▾
Storage Conditions Store at 20° to 25°C (68° to 77°F); excursions permitted between 15° and 30°C (59° and 86°F). [See USP Controlled Room Temperature.] Protect from light. For Single-Dose Vials: Discard unused portion. Sterile, Nonpyrogenic. The container closure is not made with natural rubber latex.
📋 Description ▾
11 DESCRIPTION Lidocaine hydrochloride injection, USP contains lidocaine hydrochloride, an amide local anesthetic, as the active pharmaceutical ingredient. The route of administration for lidocaine hydrochloride injection, USP is by injection, for infiltration, nerve block, epidural and caudal use. Multiple dose vials contain methylparaben and they should not be used for caudal and lumbar epidural blocks.
Dosage forms listed as lidocaine hydrochloride injection, USP – MPF indicate single-dose solutions that are Methylparaben Free (MPF). Lidocaine hydrochloride, is chemically designated as acetamide, 2-(diethylamino)-N-(2,6-dimethylphenyl)-, monohydrochloride monohydrate and has the molecular weight of 288.8 g/mol. Lidocaine hydrochloride molecular formula is C 14 H 22 N 2 O • HCl•H 2 O, and has the following structural formula: Lidocaine hydrochloride injection, USP in multiple dose vials is a sterile, nonpyrogenic, isotonic, clear, colorless solution containing lidocaine hydrochloride and sodium chloride.
Each mL contains 1 mg methylparaben as an antiseptic preservative. The pH of these solutions is adjusted to approximately 6.5 (5.0 to 7.0) with sodium hydroxide and hydrochloric acid. £ Quantity is equivalent to 10.7 mg per mL Lidocaine Hydrochloride, USP (Monohydrate). Ingredients Strength 1% Amount (Per mL) Lidocaine Hydrochloride (Anhydrous) 10 mg £ Sodium Chloride 7 mg Methylparaben 1 mg Sodium Hydroxide Added for pH Adjustment to approximately 6.5 (5.0 to 7.0) Hydrochloric Acid Lidocaine hydrochloride injection, USP - MPF is a sterile, nonpyrogenic, isotonic, clear, colorless, and preservative-free solution.
The pH of these solutions is adjusted to approximately 6.5 (5.0 to 7.0) with sodium hydroxide and hydrochloric acid. £ Quantity is equivalent to 10.7 mg per mL Lidocaine Hydrochloride, USP (Monohydrate). Ingredients Strength 1% Amount (Per mL) Lidocaine Hydrochloride (Anhydrous) 10 mg £ Sodium Chloride 7 mg Sodium Hydroxide Added for pH Adjustment to approximately 6.5 (5.0 to 7.0) Hydrochloric Acid Structural Formula
💬 Information for Patients ▾
17 PATIENT COUNSELING INFORMATION
17.1Allergic-Type Reactions Assess if the patient has had allergic-type reactions to amide-type local anesthetics or to other formulation ingredients, such as the antimicrobial preservative methylparaben contained in multiple-dose vials [see Contraindications ( 4 ), Warnings and Precautions ( 5.6 ), Adverse Reactions ( 6 )].
17.2Temporary Loss of Sensation and Motor Activity After Caudal or Epidural Anesthesia When appropriate, patients should be informed in advance that they may experience temporary loss of sensation and motor activity, usually in the lower half of the body, following proper administration of caudal or epidural anesthesia. Instructions After Dental Injection of Lidocaine Hydrochloride Injection Advise patients receiving dental injections of lidocaine hydrochloride injection not to chew solid foods or to test the anesthetized area by biting or probing until anesthesia has worn off (up to 7 hours).
17.3Methemoglobinemia Inform patients that use of local anesthetics may cause methemoglobinemia, a serious condition that must be treated promptly. Advise patients or caregivers to stop use and seek immediate medical attention if they or someone in their care experience the following signs or symptoms: pale, gray, or blue colored skin (cyanosis); headache; rapid heart rate; shortness of breath; lightheadedness; or fatigue [see Warnings and Precautions ( 5.2 )]. AVENACY Mfd. for Avenacy Schaumburg, IL 60173 (USA) Made in India ©2026 Avenacy Revised: January 2026