Medically reviewed by Jessica Swirble, PharmD
Last updated on 7/10/2024

Drug Information | Side Effects | Use & Dosage | Request a Prescription

The use of meclizine can lead to various side effects in some individuals.

Common mild side effects of meclizine use include:

• Drowsiness
  
• Fatigue
  
• Dry mouth
  
• Headache
  
• Vomiting
  
  

More severe side effects include:

• Blurred vision
  
• Signs of an allergic reaction (hives, skin rash, itching, swelling, difficulty breathing)
  
  

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:

• Amobarbital
  
• Antihistamines
  
• NSAIDs or other pain/ fever medications
  
• Phenobarbital
  
• Sedatives
  
• Opioid pain medications
  
• Anticholinergic medications (oxybutynin, dicyclomine)
  
• Seizure medication
  
• Tranquilizers
  
• Vitamins
  
  

You should also mention medical conditions such as:

• Glaucoma
  
• Asthma
  
• Urinary tract blockage
  
• Gastrointestinal obstruction
  
• An enlarged prostate
  
• Breathing problems (like asthma, emphysema, or chronic bronchitis)
  
• Liver disease
  
• Kidney disease
  
  

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.