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With NowPatient's private treatment plans you can treat Motion sickness with AVOMINE ® safely and easily in a few simple steps. Get started by selecting the medication you are interested in or by hitting the start consultation button below.

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We connect you to a prescribing clinician by secure video link who will spend time with you to understand your requirements and ensure that AVOMINE ® is appropriate, safe and effective for you. The consultation is FREE and you only ever pay for the medication, if it is prescribed. Medications are supplied and delivered discreetly by NowPatient.

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Table of contents
OverviewOther known brand namesAbout AvomineKey facts of AvomineWho is Avomine suitable for?Who is Avomine not suitable for?How and where to get Avomine 25mg tablets?Dosage and strength for Avomine for travel sicknessInformation about how to take Avomine for travel sicknessWhat happens if you take too much Avomine?What are the side effects of Avomine?Information about taking Avomine at the same time as other medications or herbal supplementsHow long does Avomine take to work?Can Avomine be taken long term?Is Avomine addictive?Is there a herbal Avomine?Can women use Avomine when pregnant or breastfeeding?Should I avoid any particular food or drink when taking Avomine?Alternatives to AvomineSourcesPeople also asked
Navin Khosla NowPatientGreen tick
Medically reviewed by Navin Khosla, BPharm and written by Rajive Patel, BPharm - Updated on 26 Jan 2024
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What to do if you missed your AVOMINE ® dose

The MHRA's reporting program for suspected side effects to medicines, vaccines, e-cigarettes, medical device incidents, defective or falsified (fake) products to the Medicines and Healthcare products Regulatory Agency to ensure safe and effective use.

Learn more about reporting side effects

Other known brand names


About Avomine

Avomine tablets contain the sedating antihistamine promethazine teoclate as the active ingredient. Promethazine is an anti-emetic (anti-sickness) drug that is used to treat insomnia, allergies such as hay fever, symptoms of the common cold (mixed with paracetamol, dextromethorphan or pseudoephedrine), and the prevention of travel sickness.

Avomine is alao available as alternative brands of promethazine such as Sominex and Phenergan. Now Patient offers Avomine as a treatment for travel sickness only, following an online consultation with a prescribing clinician.

Key facts of Avomine

  • For the treatment of motion sickness
  • Take Avomine the night before a long journey or 1 or 2 hours before a short journey
  • Avomine has some common side effects which include drowsiness, headaches, and dizziness
  • Do not drink alcohol when taking Avomine as this may increase the risk of side effects
  • It can be dangerous if you take Avomine with certain medications like sleeping tablets. If you’re not sure if it is safe, discuss this with the prescribing clinician

Who is Avomine suitable for?

Avomine is suitable for most adults.

Who is Avomine not suitable for?

Avomine may not be suitable for some people. To make sure it’s safe for you, speak to the prescribing clinician before taking Avomine if you:

  • Have previously had an allergic reaction to promethazine, or other phenothiazines or any of the other ingredients (sodium metabisulphite, lactose)
  • Have glaucoma
  • Have epilepsy
  • Have liver, kidney or bladder problems
  • Are pregnant or trying to get pregnant. Promethazine can affect home pregnancy tests

How and where to get Avomine 25mg tablets?

Avomine is available from a number of sources. It is available over the counter at a pharmacy.

Now Patient does not allow customers to buy Avomine directly. Our service is certified, safe and effective, and we only ever treat conditions. If you book a consultation with a prescribing clinician for the treatment of motion sickness, you can discuss if Avomine is a suitable treatment option for you.

At the end of the consultation, the clinician will decide if a treatment plan is suitable for you. If it is, the clinician will issue you with a prescription which can then be ordered, paid for and delivered directly to your chosen address by Now Patient.

Dosage and strength for Avomine for travel sickness

Avomine is available as 25mg tablets when used for the treatment of travel sickness.

Information about how to take Avomine for travel sickness

For the prevention of motion sickness, take 25mg 1 or 2 hours before a short journey or 25mg the night before a long journey. When treating motion sickness, take 25mg immediately and 25mg the same evening, then 25mg the next day, if needed. Read the patient information leaflet supplied with your medication for further information.

What happens if you take too much Avomine?

If you take more than prescribed, then it can lead to some unpleasant side effects.

You should talk to your doctor or reach out to one of our prescribing clinicians, if you have taken too much Avomine and you experience any of the following side effects:

  • Feeling very drowsy
  • An irregular heartbeat
  • Difficulty breathing

In serious cases, you can become unconscious or have seizures or fits and may need emergency treatment in hospital.

What are the side effects of Avomine?

Side effects of Avomine are split into common and serious.

Common side effects include:

  • Daytime tiredness
  • Blurred vision
  • Upset stomach, loss of appetite, diarrhoea
  • Nightmares
  • Dizziness
  • Headaches
  • Skin sensitivity to sunlight
  • If you’re over 65, side effects may include confusion, dry mouth, blurred vision, and difficulty urinating

Serious side effects include:

  • Yellowing of your eyes which may be a sign of liver problems
  • Bruising or bleeding easily
  • Muscle stiffness or shaking
  • Unusual face or tongue movements

If you experience any serious side effects, you should contact NHS 111.

If you experience a serious allergic reaction with the signs shown below you should contact emergency services on 999.

  • Your lips, mouth, throat or tongue suddenly become swollen
  • You’re breathing very fast or struggling to breathe (you may become very wheezy or feel like you’re choking or gasping for air)
  • Your throat feels tight or you’re struggling to swallow
  • Your skin, tongue or lips turn blue, grey or pale (if you have black or brown skin, this may be easier to see on the palms of your hands or soles of your feet)
  • You suddenly become very confused, drowsy or dizzy
  • Someone faints and cannot be woken up

Always report adverse effects to the MHRA yellow card reporting system. You can read more about this here: how and where do i report side effects of my medication

Information about taking Avomine at the same time as other medications or herbal supplements

There may be problems when taking herbal supplements with promethazine, especially those that cause sleepiness, or dry mouth. Also tell your doctor if you are taking:

  • Monoamine oxidase inhibitors (MAOIs), such as phenelzine
  • Opioids, such as codeine, morphine, or oxycodone

Also, speak with a healthcare professional before you take Avomine with any other painkillers or medicines.

How long does Avomine take to work?

Avomine will start to work within 20 minutes and may continue to work for up to 12 hours.

Can Avomine be taken long term?

You should only take promethazine for short periods, unless your doctor says it’s ok to take it longer.

Is Avomine addictive?

Promethazine, the active ingredient in Avomine is not addictive, but do not take it for longer than advised. If you have taken promethazine for a long time and suddenly stop, you may feel dizzy or sick. Speak to your doctor before stopping promethazine if you have taken it for a long time.

Is there a herbal Avomine?

No. Herbal Avomine does not exist. If you have been marketed such a formulation, it may be fake.

Can women use Avomine when pregnant or breastfeeding?

Yes. Avomine is not harmful to your baby. Also, if your doctor says your baby is healthy, promethazine can be used during breastfeeding.

Should I avoid any particular food or drink when taking Avomine?

You can eat and drink normally when taking Avomine. However, do not drink alcohol when taking Avomine as this may increase the risk of side effects.

Alternatives to Avomine

Alternatives for the treatment of motion sickness include Phenergan.


Medical Disclaimer

NowPatient has taken all reasonable steps to ensure that all material is factually accurate, complete, and current. However, the knowledge and experience of a qualified healthcare professional should always be sought after instead of using the information in this page. Before taking any drug, you should always speak to your doctor or another qualified healthcare provider.

The information provided here about medications is subject to change and is not meant to include all uses, precautions, warnings, directions, drug interactions, allergic reactions, or negative effects. The absence of warnings or other information for a particular medication does not imply that the medication or medication combination is appropriate for all patients or for all possible purposes.

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