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Meclizine Side Effects

Based on the limited side effect information for prescription meclizine, the drug may cause problems such as blurred vision, drowsiness, dry mouth, and chest mucus. While most side effects of this medicine appear to be mild, some problems are more serious and require medical attention. Potentially serious side effects that should be reported to your healthcare provider immediately include difficulty passing urine, seizures, and confusion.

An Introduction to Meclizine Side Effects

As with any medicine, meclizine hydrochloride (Antivert®, Bonine®, Dramamine® Less Drowsy Formula) can cause side effects. However, not everyone who takes the medication will have problems. In fact, most people tolerate it quite well.
If side effects do occur, in most cases, they are minor and either require no treatment or can easily be treated by you or your healthcare provider.
(This article covers many, but not all, of the possible side effects with meclizine. Your healthcare provider can discuss a more complete list of meclizine side effects with you.)

Serious Side Effects of Meclizine

Some side effects with meclizine are potentially serious and should be reported immediately to your healthcare provider. Although generally rare, some of these side effects may actually be fairly common, particularly in young children or the elderly. These include, but are not limited to:
  • Heart palpitations
  • A rapid heart rate (tachycardia)
  • An irregular heartbeat
  • Confusion
  • Seizures
  • Difficulty passing urine
  • Worsening of ulcers or gastroesophageal reflux disease
  • Worsening of glaucoma
  • Signs of an allergic reaction, such as:


    • An unexplained rash
    • Itching
    • Hives
    • Swelling of the mouth or throat
    • Wheezing
    • Difficulty breathing.


Meclizine HCL Medication Information

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