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Related to Antivert: vertigo


trademark for preparations of meclizine hydrochloride, an antiemetic and antivertigo agent.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

meclizine hydrochloride (meclozine (UK))

Antivert, Bonamine (CA), Bonine, Dramamine Less Drowsy Formula, Sea-Legs (UK), Traveleeze (UK)

Pharmacologic class: Anticholinergic

Therapeutic class: Antiemetic, antivertigo drug

Pregnancy risk category B


Decreases excitability of middle-ear labyrinth and depresses conduction in vestibular-cerebellar pathways


Tablets: 12.5 mg, 25 mg, 50 mg

Tablets (chewable): 25 mg

Indications and dosages

Motion sickness

Adults: 25 to 50 mg P.O. 1 hour before travel. May repeat q 24 hours for duration of travel.

Vertigo associated with diseases affecting the vestibular system

Adults: 25 to 100 mg P.O. daily in divided doses


• Hypersensitivity to drug


Use cautiously in:

• prostatic hypertrophy, stenosing peptic ulcer, bladder neck obstruction, pyloroduodenal obstruction, arrhythmias, angle-closure glaucoma, bronchial asthma

• pregnant or breastfeeding patients

• children (younger than age 12).


• Know that tablets may be chewed or swallowed whole.

Adverse reactions

CNS: drowsiness, fatigue, confusion, excitement, euphoria, nervousness, restlessness, insomnia, vertigo, visual and auditory hallucinations, seizures

CV: hypotension, palpitations, tachycardia

EENT: blurred vision, diplopia, tinnitus, dry nose, dry throat

GI: nausea, vomiting, diarrhea, constipation, dry mouth, anorexia

GU: difficulty urinating, urinary retention, urinary frequency

Skin: rash, urticaria


Drug-drug. Anticholinergics (including some antihistamines, antidepressants, atropine, haloperidol, phenothiazines): additive anticholinergic effects

Antihistamines, CNS depressants (such as opioids, sedative-hypnotics): additive CNS depression

Drug-diagnostic tests. Skin tests using allergen extracts: false-negative results

Drug-behaviors. Alcohol use: additive CNS depression

Patient monitoring

• Discontinue drug, as ordered, at least 4 days before skin testing.

• Know that drug has anticholinergic effects.

Patient teaching

• Tell patient to take as prescribed to minimize adverse effects.

• Caution patient to avoid driving and other hazardous activities until he knows how drug affects concentration and alertness.

• Advise patient to relieve dry mouth with hard candy or frequent sips of fluids.

• As appropriate, review all other significant and life-threatening adverse reactions and interactions, especially those related to the drugs, tests, and behaviors mentioned above.

McGraw-Hill Nurse's Drug Handbook, 7th Ed. Copyright © 2013 by The McGraw-Hill Companies, Inc. All rights reserved


A trademark for the drug meclizine hydrochloride.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
References in periodicals archive ?
The company's FDA approved Meclizine Hydrochloride Tablets is the generic version of Pfizer's Antivert, which is indicated for the management of nausea and vomiting, and dizziness associated with motion sickness.
* Meclizine (Bonine, Antivert) can help with nausea.
Also, medications, both over-the-counter such as dimenhydrindte (Dramamine), diphenhydramine (Benadryl) and meclizine (Antivert), and prescription, such as promethazine (Phenergan) or scopolamine (Scopace), can prevent and treat seasickness, but they also may cause drowsiness.
Your doctor may prescribe medications such as meclizine (Antivert), scopolamine or diazepam (Valium) to treat your symptoms, but Dr.
Also, over-the-counter medications such as dimenhydrinate (Dramamine), diphenhydramine (Benadryl) and meclizine (Antivert) and prescription promethazine (Phenergan) or scopolamine (Scopace) can help prevent and treat seasickness, but they also may cause drowsiness.