What should you know about Bonine motion sickness medicine?

Motion sickness happens when signals from the inner ear, eyes, and brain do not match during travel. Bonine contains meclizine, which reduces activity in pathways involved in nausea and dizziness. It works best when taken before travel, following the product label or advice from a clinician. It does not treat every cause of nausea, and it will not remove the need to replace fluids if vomiting occurs.

Sleepiness, dry mouth, blurred vision, and reduced coordination can occur. Avoid driving, swimming alone, or operating machinery until you know how it affects you. Alcohol and other sedating medicines can make drowsiness stronger.

Check the active ingredient and directions on the package, because products and strengths can differ. Do not take more than directed or combine it with another antihistamine unless a healthcare professional says this is appropriate. Tell a pharmacist or doctor if you have glaucoma, breathing problems, difficulty urinating, liver disease, or are pregnant or breastfeeding. For practical prevention, sit where movement is limited, look toward the horizon, keep air moving, and choose light food before a journey.

If nausea continues despite these measures, read about [Nausea](/symptoms/nausea/) and [Vomiting](/symptoms/vomiting/). A [Travel Health Consultation](/treatments/occupational-and-travel-medicine/travel-health-consultation/) can help you plan medicines around your itinerary and health history.

Seek urgent help for trouble breathing, facial or throat swelling, fainting, severe confusion, or an inability to stay awake after taking Bonine. Contact a clinician if vomiting prevents you from keeping fluids down, dizziness is severe or unusual, symptoms continue after travel, or you develop severe headache, weakness, chest pain, or new neurological symptoms. These features need assessment rather than repeated self-treatment.

Ask whether Bonine fits your age, medical conditions, and regular medicines; when to take it for your journey; and what to use if it causes too much sleepiness. If you are travelling with a child, ask specifically about the appropriate product and dose rather than sharing an adult tablet.