
Full Answer
What is a lidocaine and epinephrine injection used for?
Uses for lidocaine and epinephrine Lidocaine and epinephrine combination injection is used to cause numbness or loss of feeling for patients having certain medical procedures (by blocking certain nerves using the brachial plexus, intercostal, lumbar, or epidural blocking techniques).
What is the generic name for lidocaine and epinephrine?
Lidocaine and Epinephrine Generic name: Lidocaine and Epinephrine (LYE doe kane & ep i NEF rin) Brand name: D-Care 100X, Lignospan Forte, Lignospan Standard, Xylocaine MPF With Epinephrine, Xylocaine With Epinephrine Drug class: Local injectable anesthetics
Can you take lidocaine and epinephrine together?
As the Lidocaine and Epinephrine Injections contain a vasoconstrictor (epinephrine), concurrent use of either with a Beta-adrenergic blocking agent (propranolol, timolol, etc.) may result in dose-dependent hypertension and bradycardia with possible heart block.
What is the chemical name for lidocaine hydrochloride?
See INDICATIONS AND USAGE section for specific uses. Lidocaine Hydrochloride and Epinephrine Injection, USP solution contains lidocaine HCl, which is chemically designated as acetamide, 2- (diethylamino)-N- (2,6-dimethylphenyl)-, monohydrochloride and has the molecular wt. 270.8.

Why do you give lidocaine with epinephrine?
Lidocaine and epinephrine combination injection is used to cause numbness or loss of feeling for patients having certain medical procedures (by blocking certain nerves using the brachial plexus, intercostal, lumbar, or epidural blocking techniques).
Is lidocaine with epinephrine safe?
The use of lidocaine with epinephrine (concentrations 1:100,000–200,000, or 5–10 ug/mL) is safe to use in digital nerve blocks in patients with normal digital circulation and does not cause tissue necrosis, infarction, or gangrene (SOR: A, systematic review of randomized controlled trials and cohort studies and a ...
What is the difference between lidocaine with epinephrine and without?
The use of local anesthetic agents WITHOUT Epinephrine produces a significantly SHORTER duration of action. Lidocaine with Epinephrine should provide adequate anesthesia for AT LEAST 3 HOURS. It is reasonable to use this agent for most wound repairs expected to be completed within this timeframe.
How long does lidocaine with epinephrine injection last?
Lidocaine and Epinephrine Injections provide an average pulp anesthesia of at least 60 minutes with an average duration of soft tissue anesthesia of approximately 2.5 hours.
Where should you avoid lidocaine with epinephrine?
NEVER use epinephrine with lidocaine in the fingers, toes and nose!” It is a common teaching to avoid the use of lidocaine with epinephrine for anesthetizing fingers and toes. This dates back to the early 1900s when there were reported cases of gangrene following the use of anesthetic with epinephrine.
Who should not use epinephrine?
Epinephrine is contraindicated in patients with known hypersensitivity to sympathomimetic amines, in patients with angle closure glaucoma, and patients in shock (nonanaphylactic).
Why do dentists use epinephrine?
Epinephrine is widely used as an additive in local anesthetics (typically in concentrations of 1:100,000) to improve the depth and duration of the anesthesia, as well as to reduce bleeding in the operative field.
What are the side effects of epinephrine?
The more common side effects include tachycardia, hypertension, headache, anxiety, apprehension, palpitations, diaphoresis, nausea, vomiting, weakness, and tremors. Careful monitoring of vital signs is crucial, especially in patients with polypharmacy.
Can lidocaine cause side effects?
Check with your doctor right away if you or your child has the following symptoms after receiving this medicine: pale, gray, or blue-colored skin, lips, or nails, confusion, headache, lightheadedness, fast heartbeat, or unusual tiredness or weakness.
Where should you not inject epinephrine?
This medicine is injected under the skin or into the muscle of your outer thigh only. Do not inject this medicine into a vein, into the muscle of your buttocks, or into your fingers, toes, hands, or feet. To do so, may increase the chance of having serious side effects.
Why is there a shortage of lidocaine 2022?
Reason for the Shortage Eugia has lidocaine on shortage due to increased demand. Fresenius Kabi has lidocaine on shortage due to increased demand. Pfizer has lidocaine presentations on shortage due to manufacturing delays and increased demand.
How long does lidocaine stay in your system?
Lidocaine has a 90% hepatic metabolism, and the elimination half-life is 1.5 to 2 hours, which can be prolonged up to 3.5 fold in patients with severe liver disease.
Where should you not inject epinephrine?
This medicine is injected under the skin or into the muscle of your outer thigh only. Do not inject this medicine into a vein, into the muscle of your buttocks, or into your fingers, toes, hands, or feet. To do so, may increase the chance of having serious side effects.
What are the side effects of epinephrine?
The more common side effects include tachycardia, hypertension, headache, anxiety, apprehension, palpitations, diaphoresis, nausea, vomiting, weakness, and tremors. Careful monitoring of vital signs is crucial, especially in patients with polypharmacy.
When should a local anesthetic with epinephrine be avoided or used with caution?
Addition of adrenaline to local anaesthetic solution is contraindicated for the following diseases like heart diseases, untreated or uncontrolled severe hypertension, uncontrolled hyperthyroidism, uncontrolled diabetes etc.
What do dentists use instead of lidocaine?
Articaine – A Safe, Viable Alternative to Novocaine and Lidocaine. Articaine was first used in Europe in 1976, is the most widely used local anesthetic in many parts of Europe, and was approved for use in the US by the FDA in 2000.
What is the metabolite of lidocaine?
The primary metabolite in urine is a conjugate of 4-hydroxy-2, 6-dimethylaniline. Studies of lidocaine metabolism following intravenous bolus injections have shown that the elimination half-life of this agent is typically 1.5 to 2.0 hours.
Where is lidocaine metabolized?
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.
How long does it take for a lidocaine injection to work?
Lidocaine and Epinephrine Injections provide an average pulp anesthesia of at least 60 minutes with an average duration of soft tissue anesthesia of approximately 2.5 hours.When used for nerve blocks in dental patients, the time of onset for both forms of Lidocaine and Epinephrine Injections averages 2-4 minutes.
How does lidocaine HCl stabilize the neuronal membrane?
Lidocaine HCl stabilizes the neuronal membrane by inhibiting the ionic fluxes required for the initiation and conduction of impulses thereby effecting local anesthetic action.
What is USP injection?
Lidocaine and Epinephrine Injection, USP is indicated for the production of local anesthesia for dental procedures by nerve block or infiltration techniques. Only accepted procedures for these techniques as described in standard textbooks are recommended.
How much lidocaine should I take daily?
For normal healthy adults, the amount of lidocaine HCI administered should be kept below 500 mg, and in any case, should not exceed 7 mg/kg (3.2 mg/lb) of body weight.
What factors affect lidocaine levels?
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 levels above 6.0 μg free base per mL.
What is the use of lidocaine and epinephrine?
Lidocaine and epinephrine combination injection is used to cause numbness or loss of feeling for patients having certain medical procedures (by blocking certain nerves using the brachial plexus, intercostal, lumbar, or epidural blocking techniques).
What medications can you take with lidocaine?
Dihydroergotamine. Dronedarone. Isocarboxazid. Linezolid. Phenelzine. Saquinavir. Tranylcypromine. Vernakalant. Using lidocaine and epinephrine with any of the following medicines is usually not recommended, but may be required in some cases.
What to tell your doctor about lidocaine?
Tell your doctor if you have ever had any unusual or allergic reaction to lidocaine and epinephrine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
How old is too old to take lidocaine?
Pediatric. Because of lidocaine and epinephrine's toxicity, it should be used with extreme caution in children younger than 6 months of age. Recommended doses should not be exceeded, and the patient should be carefully monitored during treatment.
What are the symptoms of lidocaine?
Check with your doctor right away if you or your child have the following symptoms after receiving lidocaine and epinephrine: pale, gray, or blue-colored skin, lips, or nails, confusion, headache, lightheadedness, fast heartbeat, or unusual tiredness or weakness.
What are the medical problems with lidocaine?
Make sure you tell your doctor if you have any other medical problems, especially: Blood vessel disease or. Heart disease or. Hypertension (high blood pressure) or.
Can lidocaine cause methemoglobinemia?
Lidocaine and epinephrine may cause a rare, but serious blood problem called methemoglobinemia. The risk may be increased in children younger than 6 months of age, elderly patients, or patients with certain inborn defects. It is more likely to occur in patients receiving too much of the medicine, but can also occur with small amounts. Check with your doctor right away if you or your child have the following symptoms after receiving lidocaine and epinephrine: pale, gray, or blue-colored skin, lips, or nails, confusion, headache, lightheadedness, fast heartbeat, or unusual tiredness or weakness.
Description and Brand Names
Lidocaine and epinephrine combination injection is used to cause numbness or loss of feeling for patients having certain medical procedures (by blocking certain nerves using the brachial plexus, intercostal, lumbar, or epidural blocking techniques).
Descriptions
Lidocaine and epinephrine combination injection is used to cause numbness or loss of feeling for patients having certain medical procedures (by blocking certain nerves using the brachial plexus, intercostal, lumbar, or epidural blocking techniques).
What is a lidocaine?
Lidocaine is a local anesthetic of the amide type.
Where is lidocaine HCl metabolized?
Lidocaine HCl 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.
What is USP injection?
Lidocaine Hydrochloride and Epinephrine Injection, USP is indicated for production of local or regional anesthesia by infiltration techniques such as percutaneous injection, by peripheral nerve block techniques such as brachial plexus and intercostal and by central neural techniques such as lumbar and caudal epidural blocks, when the accepted procedures for these techniques as described in standard textbooks are observed.
How does lidocaine HCl stabilize the neuronal membrane?
Lidocaine HCl stabilizes the neuronal membrane by inhibiting the ionic fluxes required for the initiation and conduction of impulses thereby effecting local anesthetic action.
What factors affect lidocaine HCl levels?
Factors such as acidosis and the use of CNS stimulants and depressants affect the CNS levels of lidocaine HCl required to produce overt systemic effects. Objective adverse manifestations become increasingly apparent with increasing venous plasma levels above 6 mcg free base per mL.
How long does lidocaine HCl stay in your urine?
The elimination half-life of lidocaine HCl following an intravenous bolus injection is typically 1.5 to 2 hours.
What percentage of lidocaine is protein bound?
At concentrations of 1 to 4 mcg of free base per mL, 60 to 80 percent of lidocaine HCl is protein bound. Binding is also dependent on the plasma concentration of the alpha-1-acid glycoprotein.
Why is epinephrine mixed with lidocaine?
Epinephrine is mixed with lidocaine to increase the duration of effect as it constricts the surroundings blood vessels so there is less absorption of lidocaine into the blood vessels and thus stays longer at the site of injection.
How long does lidocaine last?
Lidocaine is a short acting local anesthetic, lasting around 2 hours or so, give or take. Lidocaine’s onset is rapid (starts working quickly) and epinephrine is added to it to extend its duration of action so the “numbing effect” lasts longer than if used without epinephrine. Depending on where it’s injected, you might experience some of the effects of the epinephrine (racing heart beat, nervousness, excitability), which is normal and NOT an allergy. This is very commonly experienced when used for dental procedures.
Is lidocaine safe for blood pressure?
Simply epinephrine added to lidocaine to cause Vasoconstriction, resulting in less bleeding in the field. But sometimes it causes high blood pressure and increases the pulse rate. The surgeon or person who does the procedure should explain to the patient the pros and cons. Overall, it is safe.

Description
- Lidocaine Hydrochloride and Epinephrine, USP is a sterile isotonic solution containing a local anesthetic agent, Lidocaine Hydrochloride, and a vasoconstrictor, Epinephrine (as bitartrate) and are administered parenterally by injection. Both solutions are available in single dose cartridges of 1.7 mL (See INDICATIONS AND USAGE for specific uses). T...
Mechanism of action
- Lidocaine stabilizes the neuronal membrane by inhibiting the ionic fluxes required for the initiation and conduction of nerve impulses, thereby effecting local anesthetic action. Lidocaine crosses the blood-brain and placental barriers, presumably by passive diffusion.
Pathophysiology
- 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 and/or the beta-adrenergic receptor stimulating action of epinephrine when present.
Pharmacology
- Information derived from diverse formulations, concentrations and usages reveals that lidocaine 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 obtai…
Medical uses
- Lidocaine and Epinephrine Injection, USP is indicated for the production of local anesthesia for dental procedures by nerve block or infiltration techniques.
Contraindications
- Lidocaine and Epinephrine Injection is contraindicated in patients with a known history of hypersensitivity to local anesthetics of the amide type or to any components of the injectable formulations. To minimize the likelihood of intravascular injection, aspiration should be performed before the local anesthetic solution is injected. If blood is aspirated, the needle must be repositi…
Toxicity
- Lidocaine and Epinephrine Injections contain potassium metabisulfite, a sulfite that may cause allergic-type reactions including anaphylactic symptoms and life-threatening or less severe asthmatic episodes in certain susceptible people. The overall prevalence of sulfite sensitivity in the general population is unknown and probably low. Sulfite sensitivity is seen more frequently i…
Treatment
- Methemoglobinemia: Cases of methemoglobinemia have been reported in association with local anesthetic use; LIDOCAINE,along with other local anesthetics, is capable of producing this condition. Although all patients are at risk for methemoglobinemia, patients with glucose-6-phosphate dehydrogenase deficiency, congenital or idiopathic methemoglobinemia, cardiac or p…
Safety
- The safety and effectiveness of lidocaine depend on proper dosage, correct technique, adequate precautions and readiness for emergencies. Consult standard textbooks for specific techniques and precautions for various regional anesthetic procedures. Resuscitative equipment, oxygen and other resuscitative drugs should be available for immediate use (See WARNINGS AND ADVERS…
Prevention
- If sedatives are employed to reduce patient apprehension, reduced doses should be used since local anesthetic agents, like sedatives, are central nervous system depressants which in combination may have an additive effect. Young children should be given minimal doses of each agent.
Signs and symptoms
- Cardiovascular and respiratory (adequacy of ventilation) vital signs and the patient's state of consciousness should be monitored after each local anesthetic injection. Restlessness, anxiety tinnitus, dizziness, blurred vision, tremors, depression or drowsiness should alert the practitioner to the possibility of central nervous system toxicity. Signs and symptoms of depressed cardiova…
Interactions
- Lidocaine should be used with caution in patients with hepatic disease, since amide-type local anesthetics are metabolized by the liver. Patients with severe hepatic disease, because of their inability to metabolize local anesthetics normally, are at greater risk of developing toxic plasma concentrations.
Management
- Many drugs used during the conduct of anesthesia are considered potential triggering agents for familial malignant hyperthermia. Since it is not known whether amide-type local anesthetics may trigger this reaction, and since the need for supplemental general anesthesia cannot be predicted in advance, it is suggested that a standard protocol for management should be available. Early u…
Side effects
- Small doses of local anesthetics injected into the head and neck area, including retrobulbar, dental and stellate ganglion blocks, may produce adverse reactions similar to systemic toxicity seen with unintentional intravascular injections of larger doses. Confusion, convulsions, respiratony depression and/or respiratory arrest, and cardiovascular stimulation or depression h…
Risks
- Patients who are administered local anesthetics are at increased risk of developing methemoglobinemia when concurrently exposed to the following drugs, which could include other local anesthetics:
Adverse effects
- The intramuscular injection of lidocaine 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.
Research
- Studies of lidocaine in animals to evaluate the carcinogenic and mutagenic potential or the effect on fertility have not been conducted. 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. There are, however, no adequate and well-controlled studies in pregnant women. Ani…