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Meclizine hydrochloride - Medication Information

Product NDC Code 42806-012
Drug Name

Meclizine hydrochloride

Type Generic
Pharm Class Antiemetic [EPC],
Emesis Suppression [PE]
Active Ingredients
Meclizine hydrochloride 12.5 mg/1
Route ORAL
Dosage Form TABLET
RxCUI drug identifier 995624,
995666
Application Number ANDA200294
Labeler Name Epic Pharma LLC
Packages
Package NDC Code Description
42806-012-01 100 tablet in 1 bottle (42806-012-01)
42806-012-10 1000 tablet in 1 bottle (42806-012-10)
Check if available Online

Adverse reactions

Information about undesirable effects, reasonably associated with use of the drug, that may occur as part of the pharmacological action of the drug or may be unpredictable in its occurrence. Adverse reactions include those that occur with the drug, and if applicable, with drugs in the same pharmacologically active and chemically related class. There is considerable variation in the listing of adverse reactions. They may be categorized by organ system, by severity of reaction, by frequency, by toxicological mechanism, or by a combination of these.
6 ADVERSE REACTIONS The following adverse reactions associated with the use of meclizine hydrochloride tablets were identified in clinical studies or postmarketing reports. Because some 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. Anaphylactic reaction, drowsiness, dry mouth, headache, fatigue, and vomiting. On rare occasions blurred vision has been reported. Common adverse reactions are anaphylactic reaction, drowsiness, dry mouth, headache, fatigue, and vomiting. On rare occasions blurred vision has been reported ( 6 ). To report SUSPECTED ADVERSE REACTIONS, contact Epic Pharma, LLC at 1-888-374-2791 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

Meclizine Hydrochloride Drug Interactions

Information about and practical guidance on preventing clinically significant drug/drug and drug/food interactions that may occur in people taking the drug.
7 DRUG INTERACTIONS • Coadministration of meclizine hydrochloride tablets with other CNS depressants, including alcohol, may result in increased CNS depression ( 7.1 ). • CYP2D6 inhibitors: As meclizine is metabolized by CYP2D6, there is a potential for drug-drug interactions between meclizine hydrochloride and CYP2D6 inhibitors ( 7.2 ). 7.1 CNS Depressants There may be increased CNS depression when meclizine hydrochloride tablets are administered concurrently with other CNS depressants, including alcohol [see WARNINGS AND PRECAUTIONS (5.1 )]. 7.2 CYP2D6 Inhibitors Based on in-vitro evaluation, meclizine is metabolized by CYP2D6. Therefore, there is a possibility for a drug interaction between meclizine and CYP2D6 inhibitors. Therefore, monitor for adverse reactions and clinical effect accordingly

Clinical pharmacology

Information about the clinical pharmacology and actions of the drug in humans.
12 CLINICAL PHARMACOLOGY 12.1 Mechanism of Action The precise mechanism by which meclizine exerts its therapeutic effect is unknown but is presumed to involve antagonism of the histamine H1 receptor. 12.2 Pharmacodynamics There are no relevant pharmacodynamic data regarding meclizine. 12.3 Pharmacokinetics The available pharmacokinetic information for meclizine following oral administration has been summarized from published literature. Absorption Meclizine is absorbed after oral administration with maximum plasma concentrations reaching at a median T max value of 3 hours post-dose (range: 1.5 to 6 hours) for the tablet dosage form. Distribution Drug distribution characteristics for meclizine in humans are unknown. Elimination Meclizine has a plasma elimination half-life of about 5-6 hours in humans. Metabolism In an in vitro metabolic study using human hepatic microsome and recombinant CYP enzyme, CYP2D6 was found to be the dominant enzyme for metabolism of meclizine.

Mechanism of action

Information about the established mechanism(s) of the drugÕs action in humans at various levels (for example receptor, membrane, tissue, organ, whole body). If the mechanism of action is not known, this field contains a statement about the lack of information.
12.1 Mechanism of Action The precise mechanism by which meclizine exerts its therapeutic effect is unknown but is presumed to involve antagonism of the histamine H1 receptor.

Pharmacodynamics

Information about any biochemical or physiologic pharmacologic effects of the drug or active metabolites related to the drugÕs clinical effect in preventing, diagnosing, mitigating, curing, or treating disease, or those related to adverse effects or toxicity.
12.2 Pharmacodynamics There are no relevant pharmacodynamic data regarding meclizine.

Pharmacokinetics

Information about the clinically significant pharmacokinetics of a drug or active metabolites, for instance pertinent absorption, distribution, metabolism, and excretion parameters.
12.3 Pharmacokinetics The available pharmacokinetic information for meclizine following oral administration has been summarized from published literature. Absorption Meclizine is absorbed after oral administration with maximum plasma concentrations reaching at a median T max value of 3 hours post-dose (range: 1.5 to 6 hours) for the tablet dosage form. Distribution Drug distribution characteristics for meclizine in humans are unknown. Elimination Meclizine has a plasma elimination half-life of about 5-6 hours in humans. Metabolism In an in vitro metabolic study using human hepatic microsome and recombinant CYP enzyme, CYP2D6 was found to be the dominant enzyme for metabolism of meclizine.

Contraindications

Information about situations in which the drug product is contraindicated or should not be used because the risk of use clearly outweighs any possible benefit, including the type and nature of reactions that have been reported.
4 CONTRAINDICATIONS Meclizine hydrochloride tablets are contraindicated in patients with a hypersensitivity to meclizine or any of the inactive ingredients [see ADVERSE REACTIONS (6) and DESCRIPTION (11) ]. Meclizine hydrochloride tablets are contraindicated in patients with hypersensitivity to meclizine or any of the inactive ingredients ( 4 ).

Description

General information about the drug product, including the proprietary and established name of the drug, the type of dosage form and route of administration to which the label applies, qualitative and quantitative ingredient information, the pharmacologic or therapeutic class of the drug, and the chemical name and structural formula of the drug.
11 DESCRIPTION Meclizine hydrochloride, a histamine (H1) receptor antagonist, is a white or slightly yellowish, crystalline powder. It has the following structural formula: Chemically, meclizine hydrochloride is 1-(p-chloro-α-phenylbenzyl)-4-(m-methylbenzyl) piperazine dihydrochloride monohydrate. Meclizine hydrochloride tablets, USP are available in two different strengths, 12.5 mg and 25 mg. Inactive ingredients: microcrystalline cellulose, lactose monohydrate, croscarmellose sodium and magnesium stearate. The 12.5 mg tablet also contains FD&C Blue #1 Aluminum Lake. structure

Dosage and administration

Information about the drug product’s dosage and administration recommendations, including starting dose, dose range, titration regimens, and any other clinically sigificant information that affects dosing recommendations.
2 DOSAGE AND ADMINISTRATION • Recommended dosage: 25 mg to 100 mg daily, in divided doses ( 2.1 ). • Tablets: Swallow whole ( 2.2 ).

Dosage forms and strengths

Information about all available dosage forms and strengths for the drug product to which the labeling applies. This field may contain descriptions of product appearance.
3 DOSAGE FORMS AND STRENGTHS • 12.5 mg, blue, modified oval-shaped tablets, de-bossed with “Є12” on one side and plain on the other side. • 25 mg, white, modified oval-shaped tablets, de-bossed with “Є14” on one side, and plain on the other side. • Tablets: 12.5 mg and 25 mg ( 3 ).

Indications and usage

A statement of each of the drug products indications for use, such as for the treatment, prevention, mitigation, cure, or diagnosis of a disease or condition, or of a manifestation of a recognized disease or condition, or for the relief of symptoms associated with a recognized disease or condition. This field may also describe any relevant limitations of use.
1 INDICATIONS AND USAGE Meclizine hydrochloride tablets are indicated for the treatment of vertigo associated with diseases affecting the vestibular system in adults. Meclizine hydrochloride tablets are indicated for the treatment of vertigo associated with diseases affecting the vestibular system in adults ( 1 ).

Spl product data elements

Usually a list of ingredients in a drug product.
Meclizine Hydrochloride Meclizine Hydrochloride MECLIZINE HYDROCHLORIDE MECLIZINE MICROCRYSTALLINE CELLULOSE LACTOSE MONOHYDRATE CROSCARMELLOSE SODIUM MAGNESIUM STEARATE FD&C BLUE NO. 1 debossed E12 Meclizine Hydrochloride Meclizine Hydrochloride MECLIZINE HYDROCHLORIDE MECLIZINE MICROCRYSTALLINE CELLULOSE LACTOSE MONOHYDRATE CROSCARMELLOSE SODIUM MAGNESIUM STEARATE debossed E14

Carcinogenesis and mutagenesis and impairment of fertility

Information about carcinogenic, mutagenic, or fertility impairment potential revealed by studies in animals. Information from human data about such potential is part of the warnings field.
13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility Carcinogenesis Animal studies to assess the carcinogenic potential of meclizine have not been conducted. Mutagenesis Genetic toxicology studies of meclizine have not been conducted. Impairment of Fertility Animal studies to assess the effects of meclizine on fertility and early embryonic development have not been conducted.

Nonclinical toxicology

Information about toxicology in non-human subjects.
13 NONCLINICAL TOXICOLOGY 13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility Carcinogenesis Animal studies to assess the carcinogenic potential of meclizine have not been conducted. Mutagenesis Genetic toxicology studies of meclizine have not been conducted. Impairment of Fertility Animal studies to assess the effects of meclizine on fertility and early embryonic development have not been conducted.

Package label principal display panel

The content of the principal display panel of the product package, usually including the product’s name, dosage forms, and other key information about the drug product.
PACKAGE/LABEL PRINCIPAL DISPLAY PANEL Meclizine Hydrochloride Tablets, USP 12.5 mg 100 Tablets 12.5 mg 100ct Package/Label Display Panel Meclizine Hydrochloride Tablets, USP 25 mg 100 Tablets 25 mg 100ct

Spl unclassified section

Information not classified as belonging to one of the other fields. Approximately 40% of labeling with effective_time between June 2009 and August 2014 have information in this field.
2.1 Recommended Dosage The recommended dosage is 25 mg to 100 mg daily administered orally, in divided doses, depending upon clinical response. 2.2 Administration Instructions Meclizine hydrochloride tablets must be swallowed whole. 5.1 Drowsiness Since drowsiness may occur with use of meclizine hydrochloride tablets, patients should be warned of this possibility and cautioned against driving a car or operating dangerous machinery. Patients should avoid alcoholic beverages while taking meclizine hydrochloride tablets [see DRUG INTERACTIONS (7.1) ] . 5.2 Concurrent Medical Conditions Because of its potential anticholinergic action, meclizine hydrochloride tablets should be used with caution in patients with asthma, glaucoma, or enlargement of the prostate gland.

Meclizine Hydrochloride: Information for patients

Information necessary for patients to use the drug safely and effectively, such as precautions concerning driving or the concomitant use of other substances that may have harmful additive effects.
17 PATIENT COUNSELING INFORMATION Administration Instructions Advise patients that the tablets must be swallowed whole [see DOSAGE AND ADMINISTRATION (2.1 )]. Adverse Reactions Advise patients that meclizine hydrochloride tablets may cause anaphylactic reaction, drowsiness, dry mouth, headache, fatigue, vomiting and, on rare occasions, blurred vision [see WARNINGS AND PRECAUTIONS (5.1 ), ADVERSE REACTIONS (6) ]. Inform patients that meclizine hydrochloride tablets may impair their ability to engage in potentially dangerous activities, such as operating machinery or vehicles. Concomitant Drug Interactions Advise patients regarding medications that should not be taken in combination with meclizine or that may necessitate increased monitoring [see DRUG INTERACTIONS ( 7.1 , 7.2 )]. Inform patients that alcohol may increase adverse reactions. Concurrent Medical Conditions Advise patients to notify their healthcare provider about all of their medical conditions, including if they are pregnant or plan to become pregnant or if they are breastfeeding [see WARNINGS AND PRECAUTIONS (5.2), USE IN SPECIFIC POPULATIONS ( 8.1 , 8.2 )]. Distributed by: Epic Pharma, LLC Laurelton, NY 11413 Rev. 07-2019-00 MF012REV07/19 OE1035

Geriatric use

Information about any limitations on any geriatric indications, needs for specific monitoring, hazards associated with use of the drug in the geriatric population.
8.5 Geriatric Use In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.

Pediatric use

Information about any limitations on any pediatric indications, needs for specific monitoring, hazards associated with use of the drug in any subsets of the pediatric population (such as neonates, infants, children, or adolescents), differences between pediatric and adult responses to the drug, and other information related to the safe and effective pediatric use of the drug.
8.4 Pediatric Use Safety and effectiveness in pediatric patients have not been established.

Pregnancy

Information about effects the drug may have on pregnant women or on a fetus. This field may be ommitted if the drug is not absorbed systemically and the drug is not known to have a potential for indirect harm to the fetus. It may contain information about the established pregnancy category classification for the drug. (That information is nominally listed in the teratogenic_effects field, but may be listed here instead.)
8.1 Pregnancy Risk Summary Data from epidemiological studies have not generally indicated a drug-associated risk of major birth defects with meclizine during pregnancy. However, in a published study, an increased incidence of fetal malformations was observed following oral administration of meclizine to pregnant rats during the period of organogenesis, at doses similar to those used clinically. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. The background risk of major birth defects and miscarriage for the indicated population is unknown. Data Human Data Epidemiological studies reporting on pregnancies exposed to meclizine have not identified an association between the use of meclizine during pregnancy and an increased risk of major birth defects. Animal Data In a published study, oral administration of meclizine (25 to 250 mg/kg) to pregnant rats during the period of organogenesis resulted in a high incidence of fetal malformations. These effects occurred at doses as low as 25 mg/kg, which is approximately 2 times the maximum recommended human dose (100 mg) on a body surface area (mg/m 2 ) basis

Use in specific populations

Information about use of the drug by patients in specific populations, including pregnant women and nursing mothers, pediatric patients, and geriatric patients.
8 USE IN SPECIFIC POPULATIONS 8.1 Pregnancy Risk Summary Data from epidemiological studies have not generally indicated a drug-associated risk of major birth defects with meclizine during pregnancy. However, in a published study, an increased incidence of fetal malformations was observed following oral administration of meclizine to pregnant rats during the period of organogenesis, at doses similar to those used clinically. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. The background risk of major birth defects and miscarriage for the indicated population is unknown. Data Human Data Epidemiological studies reporting on pregnancies exposed to meclizine have not identified an association between the use of meclizine during pregnancy and an increased risk of major birth defects. Animal Data In a published study, oral administration of meclizine (25 to 250 mg/kg) to pregnant rats during the period of organogenesis resulted in a high incidence of fetal malformations. These effects occurred at doses as low as 25 mg/kg, which is approximately 2 times the maximum recommended human dose (100 mg) on a body surface area (mg/m 2 ) basis 8.2 Lactation Risk Summary There are no data on the presence of meclizine in human milk, the effects on the breastfed infant, or the effects on milk production. The developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for meclizine and any potential adverse effects on the breastfed infant from meclizine or from the underlying maternal condition. 8.4 Pediatric Use Safety and effectiveness in pediatric patients have not been established. 8.5 Geriatric Use In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy. 8.6 Hepatic Impairment The effect of hepatic impairment on the pharmacokinetics of meclizine has not been evaluated. As meclizine undergoes metabolism, hepatic impairment may result in increased systemic exposure of meclizine. Treatment with meclizine hydrochloride tablets should be administered with caution in patients with hepatic impairment. 8.7 Renal Impairment The effect of renal impairment on the pharmacokinetics of meclizine has not been evaluated. Because of a potential for drug/metabolite accumulation, meclizine hydrochloride tablets should be administered with caution in patients with renal impairment and in the elderly, as renal function generally declines with age. 8.8 Genetic CYP2D6 Polymorphism The genetic polymorphism of CYP2D6 that results in poor-, intermediate-, extensive-, and ultrarapid metabolizer phenotypes could contribute to large inter-individual variability in meclizine exposure. Therefore, when meclizine hydrochloride tablets are administered to patients with CYP2D6 polymorphism, monitor for adverse reactions and clinical effect accordingly.

How supplied

Information about the available dosage forms to which the labeling applies, and for which the manufacturer or distributor is responsible. This field ordinarily includes the strength of the dosage form (in metric units), the units in which the dosage form is available for prescribing, appropriate information to facilitate identification of the dosage forms (such as shape, color, coating, scoring, and National Drug Code), and special handling and storage condition information.
16 HOW SUPPLIED/STORAGE AND HANDLING Meclizine Hydrochloride Tablets, USP are available as follows: 12.5 mg, blue, modified oval-shaped tablets, de-bossed with “Є12” on one side, and plain on the other side. They are supplied as follows: NDC 42806-012-01 in bottles of 100 NDC 42806-012-10 in bottles of 1000 25 mg, white, modified oval-shaped tablets, de-bossed with “Є14” on one side, and plain on the other side. They are supplied as follows: NDC 42806-014-01 in bottles of 100 NDC 42806-014-10 in bottles of 1000 16.2 Storage and Handling Store at 20 o C to 25 o C (68 o F to 77 o F) [See USP Controlled Room Temperature]. Dispense in a tight, light-resistant container (USP).

Disclaimer: Do not rely on openFDA or Phanrmacy Near Me to make decisions regarding medical care. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated. Source: OpenFDA, Healthporta Drugs API