Does Antivert (meclizine) cause side effects?

Antivert (meclizine) is an antihistamine with antiemetic (anti-nausea) and antispasmodic (anti-muscle spasm) activity used to treat and prevent vertigo, dizziness, vomiting, nausea, and motion sickness.

It also suppresses the nervous system by blocking the action of the neurotransmitter acetylcholine (neurotransmitters are chemicals that nerves use for communicating with each other).

Antivert prevents nausea and vomiting by reducing the activity of the center in the brain that controls nausea. It also prevents motion sickness by reducing excitability of neurons in the motion and balance center (vestibular region) of the brain. 

Common side effects of Antivert include

Serious side effects of Antivert include

Drug interactions of Antivert include alcohol, sedatives, and tranquilizers, which can increase drowsiness caused by Antivert. Combining Antivert with pramlintide increases the effect of both drugs on slowing bowel movement.

Antivert should be used during pregnancy only if clearly necessary.

Available information suggests that the risk of harm to the baby is minimal when Antivert is used while breastfeeding. Consult your doctor before breastfeeding.

What are the important side effects of Antivert (meclizine)?

Meclizine can cause drowsiness. Other side effects include:

Meclizine also has been associated with hypotension (low blood pressure) and heart palpitations.

Antivert (meclizine) side effects list for healthcare professionals

Anaphylactoid reaction, drowsiness, dry mouth, headache, fatigue, vomiting and, on rare occasions, blurred vision have been reported.

To report SUSPECTED ADVERSE REACTIONS, contact Casper Pharma LLC. at 1-844– 5–CASPER (1-844-522-7737) or FDA at 1-800-FDA-1088 or

What drugs interact with Antivert (meclizine)?

There may be increased CNS depression when meclizine is administered concurrently with other CNS depressants, including alcohol, tranquilizers, and sedatives.

Based on in-vitro evaluation, meclizine is metabolized by CYP2D6. Therefore there is a possibility for a drug interaction between meclizine and CYP2D6 inhibitors.

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You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

Medically Reviewed on 9/16/2020
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Professional side effects and drug interactions sections courtesy of the U.S. Food and Drug Administration.