Sea-Legs tablets: what the meclozine label says

Educational summary · drug class: First-generation (sedating) antihistamine, piperazine class; 12.5 mg tablet · last reviewed 2026-06-29

Sea-Legs is a meclozine hydrochloride 12.5 mg tablet sold in New Zealand pharmacies for preventing travel sickness. Its pack directions are built around one convenience: take it the previous night or an hour before travelling, and a dose covers up to 24 hours. The label covers adults and children 6 and over; do not give it to children under 6. It can cause drowsiness, and the pack says to avoid driving or operating machinery within 8 hours and to avoid alcohol. The old UK Sea-Legs was discontinued, and in the US the same ingredient is meclizine, the active in Bonine. A pharmacist can tell you if it fits.

Not medical advice. This page is for general educational and informational purposes only. It is not medical advice and is not a substitute for the advice of a qualified healthcare professional. Dizzout is not a medical provider: we are not doctors or pharmacists. The information here is a general summary drawn from sources such as the FDA-approved label and other public health resources, and it may not reflect the most current changes; the official product label is the authoritative source. Whether any medicine is right for you, and how much to take, are individual decisions that depend on your health, age, and other medicines. We do not provide dosing instructions: always read the product label and follow its directions. Talk to your doctor or pharmacist before starting, stopping, or changing any medication, and never disregard or delay professional medical advice because of something you read here. If you think you may have a medical emergency, contact a doctor or your local emergency number immediately.

What it is

Sea-Legs is the best-known meclozine brand in New Zealand, where the ingredient is sold over the counter at pharmacies in 12.5 mg and 25 mg strengths under names including Sea Legs, Travel Relief and Travel Ease; a chewable Sea-Legs variant also exists. Each standard tablet contains meclozine hydrochloride BP 12.5 mg. Meclozine is the same first-generation piperazine antihistamine Americans buy as meclizine (Bonine, Dramamine Less Drowsy), just under the international spelling. The UK Sea-Legs product was discontinued, which regularly confuses British travelers looking for it; our names-by-country guide maps what replaced it where.

Availability: New Zealand: sold over the counter at pharmacies. The UK Sea-Legs product was discontinued. In the US the same ingredient (spelled meclizine) is sold as Bonine and Dramamine Less Drowsy. Legal status, brand names, and availability vary by country: check what applies where you live.

How it may help with motion sickness

Meclozine blocks histamine signalling in the brain pathways that turn inner-ear conflict into nausea and vomiting, and among travel antihistamines its defining trait is duration: the effect lasts up to 24 hours, per New Zealand's Healthify medicines guide. That is what makes the night-before dose work, and why one dose can cover a full day's sailing or driving. Like the other antihistamines it is prevention-shaped: it works best taken before symptoms start, though the pack also describes taking it for relief when you feel sickness coming on.

General timing

The pack directs taking Sea-Legs the previous night or an hour before travelling, with protection lasting up to 24 hours, and different amounts for adults and children over 12 versus children 6 to 12. This is general label timing only. We do not provide dosing instructions: follow the pack and ask your pharmacist which product and amount, if any, fits.

We don't provide dosing instructions. The exact amount, schedule, and whether it suits you are individual decisions: read the product label and follow its directions, and ask a doctor or pharmacist.

Common side effects

Sources such as the product label commonly list:

Drowsiness (the pack warns against driving or operating machinery within 8 hours)
Dry mouth
Tiredness
Dizziness
Blurred vision

Who should check with a doctor or pharmacist first

Do not give to children under 6; children 6 to 12 have their own labeled amount.
May cause drowsiness: avoid driving or operating machinery within 8 hours of a dose, and avoid alcohol.
Pregnancy: the pack says not to take it during pregnancy without medical advice; check with your doctor or pharmacist.
Older adults: meclozine is anticholinergic, and guidance such as the Beers criteria flags this drug class for adults 65 and over; ask a doctor or pharmacist first.
Other sedating medicines add to the drowsiness; tell your pharmacist what else you take.
Glaucoma, prostate or urinary problems, and asthma are reasons to check with a clinician before using antihistamines of this class.

Related situation guides

Frequently asked questions

When should Sea-Legs be taken?

The pack gives two options: the night before you travel, or an hour before setting out. Either way one dose is designed to cover up to 24 hours, which is the brand's main convenience for early-morning sailings and long drives.

Can children take Sea-Legs?

From age 6. The pack gives children 6 to 12 their own amount and directs not to give it to children under 6 at all. For younger children, ask a pharmacist what, if anything, is suitable.

Is Sea-Legs still sold in the UK?

No. The UK meclozine brand Sea-Legs was discontinued, though the name still circulates. In the UK the travel shelf runs on hyoscine (Kwells, Joy-Rides), cinnarizine (Stugeron) and promethazine (Avomine) instead. In New Zealand, Sea-Legs remains a current pharmacy product.

Is Sea-Legs the same as Bonine?

Same active ingredient: meclozine is the international spelling of meclizine, which is what Bonine and Dramamine Less Drowsy contain in the US. Strengths and directions differ between products and countries, so read the pack you are actually holding.

Why does the pack say not to drive within 8 hours?

Meclozine is a sedating antihistamine, and the New Zealand pack pairs its long duration with a long caution: drowsiness can persist, so it warns against driving or operating machinery within 8 hours of a dose and against alcohol. If you need to drive at the destination, raise that with your pharmacist.

Sources

This page is for general educational and informational purposes only. It is not medical advice and is not a substitute for the advice of a qualified healthcare professional. Dizzout is not a medical provider: we are not doctors or pharmacists. The information here is a general summary drawn from sources such as the FDA-approved label and other public health resources, and it may not reflect the most current changes; the official product label is the authoritative source. Whether any medicine is right for you, and how much to take, are individual decisions that depend on your health, age, and other medicines. We do not provide dosing instructions: always read the product label and follow its directions. Talk to your doctor or pharmacist before starting, stopping, or changing any medication, and never disregard or delay professional medical advice because of something you read here. If you think you may have a medical emergency, contact a doctor or your local emergency number immediately.