Kwells vs Stugeron: Which UK Travel Tablet Fits Your Journey?
Short answer: two different drugs with two different clocks. Kwells is hyoscine hydrobromide, an anticholinergic whose label says take it up to 30 minutes before the journey or at the onset of nausea; the NHS puts its onset at about 20 to 30 minutes. Stugeron is cinnarizine, a sedating antihistamine taken 2 hours before travel, with label repeats every 8 hours during a long journey. Rough rule from the labels: short notice favors Kwells' timing, long crossings favor Stugeron's. Both can cause drowsiness, and which suits you is a pharmacist question. If you want to skip tablets entirely, Dizzout is a drug-free app that uses calibrated sound through any headphones, with most users feeling better in about 90 seconds. This page was reviewed in September 2026; labels change, so read the pack you are holding. For your own trip rather than the general case, the free remedy finder asks who needs relief and where, then gives you a plan.
Ask a UK pharmacist for travel sickness tablets and these are the two names most likely to come back. Kwells and Stugeron sit side by side on the shelf, both without prescription, and yet they are entirely different medicines: a fast anticholinergic and a slow antihistamine. The practical difference is not which is stronger, it is when each needs to be in your system, and how long your journey lasts.
This page lays out the label-level facts: active ingredients, timing, ages, and the drowsiness question, so you can have a sharper conversation with the pharmacist. It ends with the drug-free path for travelers who would rather not take either.
There is a drug-free option in this comparison too. Dizzout works through precisely calibrated sound on any headphones, free to try on iOS and Android.
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Kwells vs Stugeron vs Dizzout, side by side
| Feature | Kwells | Stugeron | Dizzout |
|---|---|---|---|
| What it is | OTC tablet (hyoscine hydrobromide 300 mcg) | OTC tablet (cinnarizine 15 mg) | Drug-free sound app |
| Drug family | Anticholinergic | Sedating antihistamine | Not a drug; calibrated sound |
| Label timing | Up to 30 min before, or at onset of nausea | 2 hours before travel, after meals | Before travel or after symptoms start |
| Long journeys | Repeat doses per label through the day | Label allows a dose every 8 hours en route | Reuse any time, no schedule |
| Onset | About 20 to 30 minutes (NHS) | Up to about 4 hours to full effect (NHS) | Most feel better in ~90 sec |
| Drowsiness | Commonly reported on the label | Most common effect; 9.9% in trial data | No drowsiness (not a drug) |
| Youngest labeled age | Over 10 (Kwells Kids covers 4 to 10) | 5, at half amounts | No pill ages; it is an audio app |
| Price | Per pack at the pharmacy | Per pack at the pharmacy | Free to try (3 sessions), then $7.99/mo or $49.99/yr |
How Kwells and Stugeron work
Kwells contains hyoscine hydrobromide 300 micrograms, an anticholinergic that blocks acetylcholine signalling from the inner ear's balance organs and acts on the brain's vomiting centre. Its label says to take it up to 30 minutes before the start of the journey, or at the onset of nausea, and the tablets can be sucked, chewed or swallowed. The 300 microgram tablet lists doses only for adults and children over 10; the half-strength Kwells Kids covers ages 4 to 10.
Stugeron contains cinnarizine 15 mg, a sedating antihistamine with calcium-channel-blocking activity, which damps the histamine side of the same inner-ear-to-brain circuit. It builds slowly: the label puts the first dose 2 hours before travel, the NHS notes full effect can take up to about 4 hours, and the label allows a further dose every 8 hours during the journey, preferably after meals. Its label covers adults and children over 12 in full, ages 5 to 12 at half.
Timing, ages and drowsiness: where they split
The clock is the honest difference. If departure is half an hour away, Stugeron's 2-hour lead has already passed, while Kwells' label timing still works, and Kwells is the only one of the two whose label mentions dosing at the onset of nausea. Pointing the other way, Stugeron's 8-hourly repeat schedule is written for long journeys, which is why the name keeps coming up around ferry crossings and multi-day cruises.
Neither is drowsiness-free. Kwells' label lists drowsiness, dizziness and sedation among commonly reported effects, alongside the anticholinergic set of dry mouth and blurred vision, and it is ruled out entirely by glaucoma. In Stugeron's own trial data, somnolence was the most common side effect at 9.9%, and the label warns against driving if affected, adds cautions for Parkinson's disease and porphyria, and advises against use in pregnancy. Both labels say to avoid alcohol. Which trade-off fits your health and your journey is exactly what a pharmacist is for.
Dizzout: the drug-free option to consider alongside
If the reason you are weighing Kwells against Stugeron is that neither drowsiness profile appeals, there is a third path that involves no anticholinergics and no antihistamines. Dizzout is a drug-free motion sickness app that plays calibrated sound through any wired or Bluetooth headphones: nothing to swallow, nothing to time hours ahead, and no drowsiness because it is not a drug.
Most users feel better in about 90 seconds, and it is designed to work both before travel and after symptoms have started, which is the window where prevention tablets struggle. It runs on iOS and Android and is free to try with 3 full sessions, then $7.99/month or $49.99/year, so it is freemium rather than free forever. Many travelers keep tablets in the bag and use the app as the first reach mid-journey.
When to use which
By their labels, Kwells suits travelers who need something that works on a short lead or once queasiness has begun, and Stugeron suits the planned, long journey where a 2-hour lead and 8-hourly repeats are practical. Glaucoma rules out Kwells; Parkinson's disease, porphyria and pregnancy weigh against Stugeron per its label; and both sedate, which matters if you drive at the other end. None of that is a recommendation: age, other medicines and health history change the answer, so put the actual question to a pharmacist or GP. If you want a no-drug option for either journey shape, or a mid-trip rescue when no tablet was taken in time, Dizzout is built for exactly that gap.
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Frequently asked questions
Which is better for a cruise, Kwells or Stugeron?
Their labels answer differently: Stugeron's is written for long journeys, with a dose 2 hours before and repeats every 8 hours en route, while Kwells is dosed in shorter cycles through the day. Many cruise travelers also ask about the scopolamine patch, which lasts about 3 days per application. Put your itinerary to a pharmacist; and for the cabin-choice half of the problem, our cruise guide covers ship and deck position.
Can you take Kwells and Stugeron together?
Do not combine travel sickness medicines on your own: both sedate, and hyoscine plus a sedating antihistamine stacks side effects. If one is not working for you, that is a conversation for a pharmacist or GP, who can look at your doses, your other medicines and your journey before suggesting a change.
Which makes you less drowsy, Kwells or Stugeron?
Neither is non-drowsy. Stugeron's trial data put somnolence at 9.9%, the most common effect, and cinnarizine has a milder reputation than promethazine; Kwells lists drowsiness and sedation as commonly reported. Individual reactions vary a lot, both labels warn against driving if affected, and the only true zero-drowsiness route is a non-drug one.
Kwells versus Stugeron is really a question about your journey: how much warning you have, and how long the motion lasts. Match the label clock to the trip, let a pharmacist check the fit against your health, and read the pack you are holding. And if you would rather skip the drowsiness debate entirely, Dizzout settles motion sickness with calibrated sound through the headphones already in your pocket, before the trip or mid-lurch. Try Dizzout free.
Related comparisons
- Kwells: the full label facts
- Stugeron 15: the full label facts
- Hyoscine hydrobromide, the ingredient behind Kwells
- Cinnarizine, the ingredient behind Stugeron
- All motion sickness comparisons
This page is informational and not a substitute for professional medical advice; talk to your doctor or pharmacist and follow the product label. Kwells, Stugeron and other product and brand names are trademarks of their respective owners; Dizzout is not affiliated with or endorsed by them.