Note: You must complete a short online consultation so that our doctor can ensure that the treatment is suitable for you. The above pricing should only be used as a reference. The final decision to issue this treatment lies with the prescribing doctor.

  • Review by a qualified doctor
  • Including prescription
  • Next-day delivery included

How Kwells works

Travel sickness happens when there is a miscommunication in signals from the eyes and the vestibular system. This is because the eyes perceives movement and the vestibular system, which is located in the inner ear and controls balance, perceives movement. This results in the brain registering a feeling of nausea in an area known as its 'vomiting centre'. Kwells stops this from happening by preventing these signals from reaching this area in the brain.

Who is Kwells for?

It is suitable for most people to take as long as they aren't allergic to the active ingredient in this treatment, hyoscine hydrobromide. You may also not be able to take this medication if you have pyloric stenosis, myathenia gravis, glaucoma or ulcerative colitis. You should also make sure that you avoid taking Kwells if you are taking antidepressants or antihistamines, as these treatments aren't compatible and may result in an increased risk of side effects.

Make sure that you provide as much detail as possible about your medical history and current health during your online consultation so that our doctor can make sure that this is right for you, or recommend a suitable alternative if it's appropriate.

How do you take Kwells tablets?

The recommended dosage for adults is one tablet every six hours. You should avoid taking more than three tablets during a 24 period. The tablets can be sucked, chewed or swallowed whole, which makes it easy to take, especially if you find it difficult to swallow tablets with water. Although children can take these pills, it's only available to order at 121doc if you are over the age of 18.

Are there any side effects?

Just like any medication, there is a slight risk of side effects, although they won't affect everyone taking this medication. Possible side effects may include dizziness, drowsiness and dry mouth, although these are usually temporary and very mild. Hallucinations and restlessness are less common. There is a very slight possibility of an allergic reaction, which may include a skin rash, wheezing and difficulty breathing, although this is extremely rare.

How to buy online

If you require travel sickness medication you can place your order online today at 121doc. However, we like to make sure that all our patients can use this medication safely, which is why we ask that you complete a quick and confidential online consultation. The information you provide will be checked by our qualified doctor who will provide a prescription if they feel it's appropriate. Upon approval of your consultation, you will be notified and your treatment will be dispatched from our pharmacy for delivery right to your front door. We have 3 travel sickness medications available, Avomine, scopoderm and kwells if you are looking for a different treatment.


Overview Travel & motion sickness patchesTravel & motion sickness tablets
  Type of treatment
Type of treatment PreventativePreventative
  Active ingredient(s)
Active ingredient(s) Hyoscine hydrobromidePromethazine teoclate
  Works in
Works in 5 hours1-2 hours
Features Lasts 72 hours. Alternative to a tablet.Additional antihistimine effects
Breastfeeding CautionCaution
Pregnant CautionCaution
  For short journeys
For short journeys Apply 5 hours beforeTake 1-2 hours before
  For long journeys
For long journeys Apply 5 hours beforeTake the night before
Price £34.99£19.99
View treatmentView treatment

Other treatments that might interest you


If you're about to fly, the last thing you want to worry about is jet lag.

  • Tolerable jet lag tablets
  • Reduces symptoms quickly
  • Speeds up recovery time


Travelling abroad? Get preventative medications to safeguard you.

  • Protects against malaria
  • One dose daily
  • Free next-day delivery

What others say about us

4.6 score - 5966 Reviews

How does it work?

Select Select your treatment


Select a condition here or use the top menu. For every condition, we provide you with information as well as the treatments we currently offer. If you don’t know which is best for you, just click the 'Advise-me' button.


If you know what you want, the quickest way to find a specific medication is to use the search bar here.


Every order starts with an online consultation. We will ask you medical questions to make sure only treatment that is safe and effective is prescribed. We take into account your lifestyle, health and any other medications you’re currently using.

The consultation is completely free, and takes between 5 and 10 minutes of your time.

All your information is safe with us. We don’t share it with anyone unless you want us to.


If you need any guidance, you can call, message or email our customer service team via the ‘How can we help you?' section here.

Prescribe Redeem your prescription


As soon as you place the order, one of our doctors will review your consultation. On working days, this usually takes around one hour.


If the doctor has any additional questions, you will receive a phone call and an email. We understand you might be at work or busy. Our customer service representatives are always discreet and can call back at a more convenient time if necessary.

Our emails never contain any personal or medical information, only a link to your private account on our website (where you will find your messages).


Once our pharmacy receives your prescription, you will get a second email with your package tracking code.

Deliver Expect your delivery the next working day.
Always free. Discreet packaging.
Free next-day delivery


All orders include next-day delivery. Alternatively, you can select a delivery date that suits you better.


We also provide a free UPS Access Point service. Pick up your package from one of many collection points across the UK.

With your tracking code, you will know the estimated delivery time. All we need is your signature (or a friend‘s or relative’s).


All parcels are plainly labelled; there is no logo or any indication of its contents. Inside, you will find your treatment as well as a patient leaflet in your chosen language.

Repeat Subscribe and save with our repeat service. Never miss a dose again.
10 to 15% off


With 121doc’s Subscribe & Save service, you can automatically receive your treatment every few weeks or months.

The order will be generated by us, using the information you provided (including delivery frequency). You don’t have to do anything. Payment is taken two days before shipping.


There are two ways to subscribe. The first is during the order process. The second is via your profile here.

You can cancel or amend your repeat prescriptions at any time.


There are no sign-up fees with this service. Plus, you get a 10% discount off all future prescriptions, increasing to 15% after six orders!