Antivert

Name: Antivert

Description

Chemically, ANTIVERT® (meclizine HCl) is 1-(p-chloro-α-phenylbenzyl)-4-(m-methylbenzyl) piperazine dihydrochloride monohydrate.

Inert ingredients for the tablets are: dibasic calcium phosphate; magnesium stearate; polyethylene glycol; starch; sucrose. The 12.5 mg tablets also contain: Blue 1. The 25 mg tablets also contain: Yellow 6 Lake; Yellow 10 Lake. The 50 mg tablets also contain: Blue 1 Lake; Yellow 10 Lake.

Meclizine side effects

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Common side effects may include:

  • headache;

  • vomiting;

  • dry mouth;

  • tired feeling; or

  • drowsiness.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Antivert Side Effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

Incidence not known
  • Cough
  • difficulty swallowing
  • dizziness
  • drowsiness
  • fast heartbeat
  • hives
  • itching
  • puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  • shortness of breath
  • skin rash
  • tightness in the chest
  • unusual tiredness or weakness

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Rare
  • Blurred vision
Incidence not known
  • Dry mouth
  • headache

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

PRINCIPAL DISPLAY PANEL - 12.5 mg Tablet Label

NDC 0049-2100-66

100 Tablets

Antivert®
(meclizine HCl)

12.5 mg

Pfizer
Distributed by
Roerig
Division of Pfizer Inc, NY, NY 10017

PRINCIPAL DISPLAY PANEL - 25 mg Tablet Label

NDC 0049-2110-66

100 Tablets

Antivert®
(meclizine HCl)

25 mg

Pfizer
Distributed by
Roerig
Division of Pfizer Inc, NY, NY 10017

Antivert side effects

Get emergency medical help if you have any of these signs of an allergic reaction to Antivert: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Common Antivert side effects may include:

  • headache;

  • vomiting;

  • dry mouth;

  • tired feeling; or

  • drowsiness.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

For the Consumer

Applies to meclizine: oral capsule, oral tablet, oral tablet chewable

Along with its needed effects, meclizine (the active ingredient contained in Antivert) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking meclizine:

Incidence not known
  • Cough
  • difficulty swallowing
  • dizziness
  • drowsiness
  • fast heartbeat
  • hives
  • itching
  • puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  • shortness of breath
  • skin rash
  • tightness in the chest
  • unusual tiredness or weakness

Some side effects of meclizine may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Rare
  • Blurred vision
Incidence not known
  • Dry mouth
  • headache

Meclizine Levels and Effects while Breastfeeding

Summary of Use during Lactation

Occasional doses of meclizine are probably acceptable during breastfeeding. Large doses or more prolonged use may cause effects in the infant or decrease the milk supply, particularly in combination with a sympathomimetic such as pseudoephedrine or before lactation is well established.

Drug Levels

Maternal Levels. Relevant published information was not found as of the revision date.

Infant Levels. Relevant published information was not found as of the revision date.

Effects in Breastfed Infants

Relevant published information on meclizine was not found as of the revision date. In one telephone follow-up study, mothers reported irritability and colicky symptoms 10% of infants exposed to various antihistamines and drowsiness was reported in 1.6% of infants. None of the reactions required medical attention and none of the infants were exposed to meclizine.[1]

Effects on Lactation and Breastmilk

Antihistamines in relatively high doses given by injection can decrease basal serum prolactin in nonlactating women and in early postpartum women.[2][3] However, suckling-induced prolactin secretion is not affected by antihistamine pretreatment of postpartum mothers.[2] Whether lower oral doses of antihistamines have the same effect on serum prolactin or whether the effects on prolactin have any consequences on breastfeeding success have not been studied.

Alternate Drugs to Consider

Dimenhydrinate

References

1. Ito S, Blajchman A, Stephenson M et al. Prospective follow-up of adverse reactions in breast-fed infants exposed to maternal medication. Am J Obstet Gynecol. 1993;168:1393-9. PMID: 8498418

2. Messinis IE, Souvatzoglou A, Fais N, Lolis D. Histamine H1 receptor participation in the control of prolactin secretion in postpartum. J Endocrinol Investig. 1985;8:143-6. PMID: 3928731

3. Pontiroli AE, De Castro e Silva E, Mazzoleni F, Alberetto M et al. The effect of histamine and H1 and H2 receptors on prolactin and luteinizing hormone release in humans: sex differences and the role of stress. J Clin Endocrinol Metab. 1981;52:924-8. PMID: 7228996

Administrative Information

LactMed Record Number

553

Last Revision Date

20170411

Disclaimer

Information presented in this database is not meant as a substitute for professional judgment. You should consult your healthcare provider for breastfeeding advice related to your particular situation. The U.S. government does not warrant or assume any liability or responsibility for the accuracy or completeness of the information on this Site.

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