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Cyclizine HCl oral

Important Note

The following information is intended to supplement, not substitute for, the expertise and judgment of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. Consult your healthcare professional before using this drug.


(MECK-lih-zeen, SYE-klih-zeen)

COMMON BRAND NAME(S): Antivert, Bonine, Dramamine II, Marezine


This medication is used to prevent or treat nausea, vomiting and dizziness caused by motion sickness or middle ear infections.

How To Use

For motion sickness, take the first dose 30 minutes before traveling. For other conditions, take exactly as directed by your doctor. Chewable tablets must be chewed thoroughly before swallowing.

Side Effects

May cause drowsiness, blurred vision, stomach upset, headache or dry mouth. These effects should subside as your body adjusts to the medication. If they persist or become bothersome, inform your doctor. Since this medication may cause drowsiness, use caution engaging in activities requiring alertness. If you notice other effects not listed above, contact your doctor or pharmacist.


Tell your doctor your medical history, especially of: glaucoma, prostate problems, urinary problems, asthma, any allergies you have. Alcohol may intensify the drowsiness effect of this drug. Limit alcohol intake and use caution performing tasks that require alertness such as driving and operating machinery. Do not give meclizine to a child under 12 years of age without a doctor's permission. Before using this medication, inform your doctor if you are pregnant. It is not known if this medication is excreted into breast milk. Consult your doctor before breast-feeding.

Drug Interactions

Tell your doctor of all prescription and nonprescription drugs you may use, especially of drugs that have a drowsiness effect such as: medications for cough/colds and allergies, drugs used for sleep, anti-seizure medications, narcotic pain drugs (e.g., codeine), barbiturates (e.g., phenobarbital), tranquilizers. Do not start or stop any medicine without doctor or pharmacist approval.


If overdose is suspected, contact your local poison control center or emergency room immediately. Symptoms of overdose may include unusual excitability, drowsiness, hallucinations, very slow or shallow breathing, and seizures.


Do not share this medication with others.

Missed Dose

If you miss a dose, take as soon as remembered; do not take if it is almost time for the next dose, instead, skip the missed dose and resume your usual dosing schedule. Do not "double-up" the dose to catch up.


Store at room temperature away from sunlight and moisture.