Product Elements:
Lidocaine hydrochloride lidocaine hydrochloride lidocaine hydrochloride lidocaine lidocaine hydrochloride anhydrous aluminum sulfate calcium acetate cetyl alcohol glycerin glyceryl monostearate methylparaben mineral oil propylparaben water sodium hydroxide sorbitan monostearate stearic acid stearyl alcohol petrolatum
Drug Interactions:
Drug interactions: patients that are administered local anesthetics may be at increased risk of developing methemoglobinemia when concurrently exposed to the following oxidizing agents: class âexamples nitrates/nitrites nitroglycerin, nitroprusside, nitric oxide, nitrous oxide local anesthetics benzocaine, lidocaine, bupivacaine, mepivacaine, tetracaine, prilocaine, procaine, articaine, ropivacaine antieoplastic agents cyclophosphamide, flutamide, rasburicase, ifosfamide, hydroxyurea antibiotics dapsone, sulfonamides, nitrofurantoin, para-aminosalicyclic acid antimalarials chloroquine, primaquine anticonvulsants phenytoin, sodium valproate, phenobarbital other drugs acetaminophen, metoclopramide, sulfa drugs (i.e., sulfasalazine), quinine
Indications and Usage:
Indications: anesthetic for relief of pruritus, pruritic eczemas, abrasions, minor burns, insect bites, pain, soreness and discomfort due to pruritus ani, pruritus vulvae, hemorrhoids, anal fissures, and similar conditions of the skin and mucous membranes.
Warnings:
Warnings: for external use only. not for ophthalmic use. 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 cardio
Read more...vascular adverse effects, including seizures, coma, arrhythmias, and death. discontinue [the use of this product] 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.
Dosage and Administration:
Dosage and administration: apply a thin film to the affected area two or three times daily or as directed by a physician.
Contraindications:
Contraindications: traumatized mucosa, secondary bacterial infection of the area of proposed application and known hypersensitivity to any of the components. lidocaine is contraindicated in patients with a known history of hypersensitivity to local anesthetics of the amide type.
Adverse Reactions:
Adverse reactions: during or immediately after treatment, the skin at the site of treatment may develop erythema or edema or may be the locus of abnormal sensation. call your doctor about side effects. you may report side effects to the fda at 1-800-fda-1088.
Drug Interactions:
Drug interactions: patients that are administered local anesthetics may be at increased risk of developing methemoglobinemia when concurrently exposed to the following oxidizing agents: class âexamples nitrates/nitrites nitroglycerin, nitroprusside, nitric oxide, nitrous oxide local anesthetics benzocaine, lidocaine, bupivacaine, mepivacaine, tetracaine, prilocaine, procaine, articaine, ropivacaine antieoplastic agents cyclophosphamide, flutamide, rasburicase, ifosfamide, hydroxyurea antibiotics dapsone, sulfonamides, nitrofurantoin, para-aminosalicyclic acid antimalarials chloroquine, primaquine anticonvulsants phenytoin, sodium valproate, phenobarbital other drugs acetaminophen, metoclopramide, sulfa drugs (i.e., sulfasalazine), quinine
Use in Pregnancy:
Use in pregnancy: teratogenic effects; pregnancy category b: reproduction studies have been performed for lidocaine 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. animal reproduction studies are not always predictive of human response. general consideration should be given to this fact before administering lidocaine to women of childbearing potential, especially during early pregnancy when maximum organogenesis takes place.
Pediatric Use:
Pediatric use: dosage in pediatric patients should be reduced commensurate with age, body weight and physical condition.
Description:
Description: lidocaine 3% cream is a topical anesthetic indicated for the relief of pruritus, pruritic eczemas, abrasions, minor burns, insect bites, pain, soreness, and discomfort due to pruritus ani, pruritus vulvae, hemorrhoids, anal fissures, and similar conditions of the skin and mucous membranes.
Clinical Pharmacology:
Clinical pharmacology: mechanism of action: lidocaine 3% cream releases lidocaine from a mild acidic vehicle to stabilize the neuronal membrane by inhibiting the ionic fluxes required for initiation and conduction of impulses, thereby effecting local anesthetic action. a mild acidic vehicle lowers ph to increase protection against alkaline irritations and to provide a favorable environment for healing. lidocaine is chemically designated as acetamide, 2- (diethylamino)-n-(2,6-dimethylphenyl), and has the following structure. lidocaine structure pharmacokinetics: lidocaine may be absorbed following topical administration to mucous membranes, its rate and extent of absorption depending upon the specific site of application, duration of exposure, concentration and total dosage. 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, bu
Read more...t 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 g 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 levels above 6 g free base per ml. in the rhesus monkey, arterial blood levels of 18-21 g/ml have been shown to be threshold for convulsive activity.
Mechanism of Action:
Mechanism of action: lidocaine 3% cream releases lidocaine from a mild acidic vehicle to stabilize the neuronal membrane by inhibiting the ionic fluxes required for initiation and conduction of impulses, thereby effecting local anesthetic action. a mild acidic vehicle lowers ph to increase protection against alkaline irritations and to provide a favorable environment for healing. lidocaine is chemically designated as acetamide, 2- (diethylamino)-n-(2,6-dimethylphenyl), and has the following structure. lidocaine structure
Pharmacokinetics:
Pharmacokinetics: lidocaine may be absorbed following topical administration to mucous membranes, its rate and extent of absorption depending upon the specific site of application, duration of exposure, concentration and total dosage. 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, thos
Read more...e 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 g 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 levels above 6 g free base per ml. in the rhesus monkey, arterial blood levels of 18-21 g/ml have been shown to be threshold for convulsive activity.
Carcinogenesis and Mutagenesis and Impairment of Fertility:
Carcinogenesis, mutagenesis and impairment of fertility: studies of lidocaine in animals to evaluate the carcinogenic and mutagenic potential of the effect on fertility have not been conducted.
How Supplied:
How supplied: lidocaine 3% cream is supplied as a white cream in: 1 oz. (28.35 g) tubes, ndc 13925-159-01 3 oz. (85 g) tubes, ndc 13925-159-03
Package Label Principal Display Panel:
Package label.principal display panel rx only ndc-13925-159-01 net wt. 1 oz. (28.35 g) lidocaine 3% cream topical anesthetic for external use only. not for ophthalmic use. seton pharmaceuticals lidocaine 3% - hydrocortisone 0.5% cream