Medically reviewed by Jessica Swirble, PharmD
Last updated on April 21, 2025
Drug Information | Side Effects | Use & Dosage | Request an Online Prescription
Meclizine is an antihistamine that treats and prevents nausea, vomiting, and dizziness caused by motion sickness. It is also used to treat symptoms of vertigo.
Meclizine is primarily used to treat:
Meclizine works by blocking signals to the brain that trigger nausea, vomiting, and dizziness. It reduces the activity of the inner ear, which helps to alleviate symptoms of motion sickness and vertigo.
Meclizine is available in the following forms:
The dosage and frequency of use depend on the condition being treated, its severity, and how you respond to the medication.
Follow your healthcare provider's instructions regarding dosage and schedule. Do not exceed the prescribed dose or frequency of use without consulting your provider.
Meclizine is used to manage motion sickness and vertigo. The effects can be noticeable within an hour for motion sickness, but achieving the desired control over vertigo may take a few days.
Continue using meclizine as prescribed, even if you start feeling better. Regular use according to your prescription is crucial for the management of your condition.
While meclizine is primarily used for treating motion sickness and vertigo, healthcare providers may prescribe it off-label for other conditions involving nausea and dizziness.
Discuss any alternative uses of meclizine with your healthcare provider.
Meclizine is available in the following dosage forms:
Meclizine is a prescription and over-the-counter medication. You will need a valid prescription from a licensed healthcare provider to obtain the prescription form of this medication.
The use of meclizine can lead to various side effects in some individuals.
Common mild side effects of meclizine use include:
More severe side effects include:
Tell your healthcare provider about any existing medical conditions, allergies, or other medications you are taking before starting treatment with meclizine. This includes prescription drugs, over-the-counter medications, and dietary supplements, as they may interact with meclizine.
Tell your provider if you are taking these medications or supplements:
You should also mention medical conditions such as:
If you are pregnant, planning to become pregnant, or breastfeeding, discuss the potential risks and benefits of using meclizine with your healthcare provider.
Take meclizine exactly as prescribed by your healthcare provider. Do not exceed the recommended dose or duration of treatment.
Meclizine can cause drowsiness. Avoid driving or operating machinery until you know how this medication affects you.
Your provider may direct you to avoid alcohol and other sedatives while taking meclizine, as they can increase the risk of side effects.
In case of a meclizine overdose, seek medical attention immediately. Symptoms of overdose may include extreme drowsiness, confusion, and difficulty breathing. If you suspect an overdose, contact the poison control helpline at 1-800-222-1222 or call emergency services.
Meclizine is available in the following forms:
The typical starting dose of meclizine varies depending on individual patient factors. It is crucial to follow your healthcare provider's instructions regarding dosage and administration.
For motion sickness:
For vertigo:
The dosage may be adjusted based on the response and tolerance to the medication. Your healthcare provider will determine the most appropriate dose based on your medical history and your response to the medication.
Meclizine should be taken as prescribed by your healthcare provider. Do not exceed the recommended dose or duration of treatment without consulting your provider.
If you have any questions about your dosage or need adjustments, contact your healthcare provider for guidance. If you want to talk to a provider right away, consider scheduling an online doctor appointment through a platform like Sesame.
If you miss a dose of meclizine, take it as soon as you remember unless it is close to the time for your next scheduled dose. In that case, skip the missed dose and continue your regular dosing schedule. Do not double the dose to make up for a missed one.
Continue taking meclizine as prescribed by your healthcare provider, even if you start feeling better. It's important to keep taking the medication as directed to manage your condition effectively.
Do not suddenly stop taking meclizine, as this can cause a return of your symptoms. Your healthcare provider will provide guidance if you need to stop taking it.
If you have any concerns or questions about your medication, discuss them with your healthcare provider for medical advice and recommendations.
Store meclizine according to the instructions provided by your healthcare provider or pharmacist. Keep it at room temperature, away from light and moisture. Ensure the container is tightly closed and out of reach of children.
Do not use expired medication or medications that appear damaged or discolored. If you have any questions about storage, consult your healthcare provider or pharmacist for guidance.