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Phenergan Elixir

Phenergan Elixir (100ml)

Sorry, this treatment is currently out of stock.

There is a national shortage of Phenergan 25mg and 10mg Tablets.

During this time, you may wish to order from our travel sickness or nausea products as an alternative, our doctors & pharmacists will review your request to ensure they will be suitable for you. 

                                                       VIEW TRAVEL SICKNESS TABLETS  >

                                                               VIEW NAUSEA TABLETS  > 

                                                               VIEW INSOMNIA TABLETS  >


Our UK based support team can help, either email us at support@theindependentpharmacy.co.uk

Description for Phenergan Elixir

Phenergan Elixir: You can use Phenergan Elixir if you are suffering from an allergy such as a rash or hay fever or if you are having problems with insomnia. This elixir can also be used to treat travel sickness as it contains active ingredients that can act as a sedative and make you feel relaxed.

Product Information

  • Age: 2 years +

    Maximum per order: 2

  • Pregnancy: Not suitable

    Breastfeeding: Not suitable

Phenergan Elixir can be used to treat travel sickness, rashes, hay fever, and it can suppress insomnia. It's active ingredients have a sedative effect and will induce a feeling of relaxation.

Whether having problems sleeping or with travel sickness, Phenergan Elixir can provide relief. It can also act as a sedative or relaxant. This is a multi-purpose medicine that will undoubtedly come in useful.

The active ingredient in Phenergan Elixir is promethazine. This is a sedating antihistamine, meaning it stops histamine in the body from performing functions. Histamine is produced in the body and causes effects such as itching skin, nasal congestion or inflammation of airways in response to the presence of allergens. By blocking histamine from acting, these symptoms of an allergic reaction are suppressed.

Histamine can cause problematic reactions such as anaphylaxis, or more localised ones such as hay fever. Promethazine can be used to treat the symptoms of both.

Promethazine also reduces histamine activity in the vomiting centre of the brain. This area of the brain is in charge of the vomiting reflex and feelings of sickness. One trigger for vomiting that the vomiting centre is activated by is a nerve signal from the vestibular apparatus in the middle ear. When head movements, such as those experienced when travelling by car or boat, are detected in the vestibular apparatus, it can send signals to the vomiting centre that result in motion sickness. The symptoms of this include dizziness, vertigo, nausea, and vomiting. Promethazine blocks the histamine receptors in the vomiting centre, meaning such signals from the vestibular apparatus will not trigger these symptoms.

Promethazine is a sedating antihistamine, meaning it also causes drowsiness. This sedating effect is used before minor surgeries. It can also be useful to provide relief for people suffering from sleeping difficulties such as insomnia.

Phenergan Elixir is an orange flavoured and sugar free sedating antihistamine, providing relief from hay fever or rashes, and also aiding those experiencing sleeping difficulties.

*Prescription medicines are supplied subject to a medical consultation at the discretion of a doctor.

The dosage of this medicine should vary based on age and the severity of the condition being treated. Always follow the instructions carefully, or directions given by a doctor.

Directions by use:

Allergic Disorder:

For children ages 2-5 years:

Take one 5-15ml dose at night, or 3 doses of up to 5ml throughout the day.


For children aged 2-5 years:
Take one 5-15ml dose at night.

Travel Sickness:

For children aged 2-5 years:
Take one 5ml dose the night before travel. If necessary, repeat the dose 6-8 into the journey.

Do not use more than this recommended dosage.

You can take Phenergan Elixir with or without food. If using tablets, they should be swallowed hole with water.

If symptoms do not go away when using Phenergan Elixir, consult with a pharmacist or doctor.

Do not use Phenergan Elixir for more than seven days without consulting with a doctor.

Phenergan Elixir can produce the following side effects:

Difficulty passing water, dry mouth, blurred vision, drowsiness, headaches, loss of appetite, nightmares, disorientation, restlessness, dizziness, indigestion, lightheadedness, confusion, hypotention, sensitivity to sunlight.

Consult with a doctor or pharmacist if any of these effects concern you, or if Phenergan Elixir has any other affect on you.

Not everyone will experience side effects.

The active ingredient contained within Phenergan Elixir is Promethazine Hydrochloride.

The other ingredients contained within Phenergan Elixir are:

Hydrogenated glucose syrup (maltitol liquid) orange juice flavor, caramel (E150), sodium benzoate (E211), sodium sulphite anhydrous (E221), sodium metabisulphite (E223), ascorbic acid (E300), citric acid anhydrous (E330), sodium citrate (E331), ecesulphame potassium (E950) and water.

Read all instructions carefully to make sure Phenergan Elixir is the right product for you:

Do not take Phenergan Elixir if any of the following apply:

  • The medicine is intended for someone less than 2 years old
  • You are hypersensitive or allergic to any of the aforementioned ingredients contained within Phenergan Elixir
  • You are already taking or have taken within the last 14 daysa monoamine oxidase inhibitor (MAOI)
  • The medicine is intended for someone who is unconscious or suffering from severe headaches, drowsiness or dizziness.

You should consult with a doctor or pharmacist before using Phenergan Elixir if any of the following apply:

  • You suffer from a bronchitis or other lung infections, you experience difficulty breathing or a tightness in the chest, or have asthma
  • You suffer from epilepsy, serious heat conditions, or narrow angle glaucoma
  • You suffer from Reye's syndrome or possible Reye's syndrome – a condition that causes confusion during a viral illness
  • You suffer from diabetes, as this medicine contains hydrogenated glucose syrup

This medicine may cause drowsiness, which may extend into the morning after taking this medicine. If you experience drowsiness, refrain from driving or operating machinery.

Phenergan Elixir contains the following ingredients that should be taken into consideration:

Hydrogenated glucose syrup (maltitol liquid)
The body converts carbohydrates such as this into sugar. Taking the maximum single dose of Phenergan Elixir (25ml) is equivalent to taking one teaspoon of sugar (approximately 5 grams). Such an amount is unlikely to affect the controlling of diabetes or affect diabetes medication requirements. If a doctor has told you that you are unable to digest certain sugars, or are intolerant to certain sugars, consult with a doctor before taking Phenergan Elixir. Hydrogenated glucose syrup can sometimes cause a mild laxative effect. One 5ml dose of Phenergan Elixir has a calorific value of around 10kcal.

Sodium sulphite and sodium metabisulphite
In rare cases, these ingredients can cause allergic reactions, the symptoms of which include tightness in the chest and breathing difficulties.

One 5ml dose of Phenergan Elixir contains around 37mg of sodium. If you are maintaining a controlled sodium diet, this should be taken into account.

Read the entire product information leaflet and all packaging of any new medicine before use. Try and inform your doctor of any medicines you plan on taking.

Delivery & Shipping Information



We offer FREE standard tracked delivery on orders over £40.

The following delivery options are available:

  • Standard Tracked Delivery - 2/3 day delivery - £2.95
  • Express Tracked Delivery - 1/2 day delivery - £4.45
  • DPD Next Day - 1 working day - £6.95
  • Special Delivery (Guaranteed before 1pm) - £8.95
  • Saturday Guaranteed before 1pm - £10.45

Important Delivery Information

All our orders are sent out using Royal Mail (unless stated). We always aim to dispatch all Royal Mail orders received before 4pm the same working day. Any orders received after 4pm or over the weekend will be dispatched the next working day. We aim to dispatch all DPD orders placed before 3pm on the same working day. Orders will not be dispatched on weekends or bank holidays.

All orders are subject to approval by our team of doctors and pharmacists. Your delivery date in the checkout is subject to your consultation being approved by our healthcare team.

All orders can be fully tracked from your dispatch email and in your account.

We ensure all parcels are in plain packaging for discreet delivery of your medicines and pharmacy goods.

Deliveries containing pharmacy-only or prescription medicines may require a signature on receipt. 

Delivery is free for all NHS prescriptions.


Royal Mail

Royal Mail are the most widely recognised mail delivery company in the UK. Being on the UK’s 29 million doorsteps six days a week means they offer unparalleled price and convenience. The Independent Pharmacy uses Royal Mail’s Tracked 48, Tracked 24, and Special Delivery Guaranteed parcel services to offer reliable, fully-tracked delivery at very competitive prices. Your Royal Mail parcel will arrive with your normal daily delivery of post.

Please note: Royal Mail do not deliver on Sundays or Bank Holidays - this should be taken into account when ordering. 

If you are not home to accept your delivery, a card should be left by the Royal Mail representative. This card will provide details of where you can collect the order or how to arrange re-delivery.

Should you be unable to collect your missed delivery or arrange for your medication to be redelivered by Royal Mail, the pharmacy can resend your medication to the same, or a different address provided it has been returned to us and this happens within a 30 day window.

Once a package has been shipped with Royal Mail we advise that you are bound to the terms and conditions of their use together with the terms and conditions contained herein.

You have the right to cancel your order up to the point when your treatment is dispatched. The pharmacist must destroy any medication within 30 days of it being returned, even un-opened boxes, so we are not able to offer refunds once your treatment has been dispatched.



DPD Local is the most innovative parcel carrier around. Thanks to their industry-leading Predict service, they provide parcel recipients with a one hour delivery window, notified by email, so you don't have to wait in all day. What's more, it enables receivers to watch the progress of their delivery on a real-time map, all the way down to a final 15 minute time-slot. 

As well as keeping customers informed at every stage of the journey, DPD believe in maximising choice and convenience. That's why DPD provide access to a suite of options both on the day of delivery and the night before, allowing customers to take delivery of their goods in a way that suits. If you wish to reschedule, you can:

  • Select an alternative delivery date
  • Opt for delivery to a nominated neighbour
  • Have the parcel left in a specified safe place
  • Collect the parcel from your local DPD Pickup Shop
  • Upgrade delivery to By 12

Please note: DPD do not deliver on Saturdays, Sundays or Bank Holidays - this should be taken into account when ordering. 

Once a package has been shipped with DPD we advise that you are bound to the terms and conditions of their use together with the terms and conditions contained herein.

You have the right to cancel your order up to the point when your treatment is dispatched. The pharmacist must destroy any medication within 30 days of it being returned, even un-opened boxes, so we are not able to offer refunds once your treatment has been dispatched.


Forwarding houses

We are unable to ship orders to mailing or forwarding houses for onwards shipping to locations outside of the UK.


BFPO Postcodes

Unfortunately we are unable to deliver medicines to BFPO postcodes.


Remote Areas

Please be aware that Royal Mail Guaranteed services are not available to all customers in the UK, especially those that live in remote postcodes. Royal Mail advise customers of the following:

We deliver by 5.30pm the next working day in the following postcode areas:
AB30 - 39, 41 - 45, 51 - 56
GY9 Alderney (Channel Islands)
HS1, 3 - 9
IV21 - 28, 40 - 49, 51 - 56
KA27, 28
KW1 - 3, 5 - 15
KW16 Stromness Town only
PA20 (0&9)
PA28 - 38, 41 - 49, 76, 77
PH15, 17 - 26, 31 - 40, 49, 50


We deliver within two working days by 5.30pm to the following postcodes areas:
GY1 Herm (Channel Islands)
GY9 Sark (Channel Islands)
PA60 - 75, 78
ZE2, 3


We deliver within three working days by 5.30pm to the following postcode areas:
KW16 - non-Town
PH30, 41 - 44


Please note: This applies to our 'Special Delivery' and 'Saturday Guaranteed' services.



We are currently unable to ship orders outside of the UK.

We are unable to ship orders to mailing or forwarding houses for onwards shipping to locations outside of the UK.

Need to know more about General Health?

Our UK based support team can help, email us at support@theindependentpharmacy.co.uk.

Phenergan Elixir Reviews

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Frequently Asked Questions

  • Does using Phenergan make skin more sensitive to sunlight?

    Phenergan Elixir can make your skin extra sensitive to sunlight. Steps should be taken to avoid sunburns. Avoid using sunbeds and going outside in strong sun. When outside, wear clothing and use sunscreen.

  • Does using Phenergan Elixir cause interference with any medical tests?

    Phenergan Elixir may cause false positive or negative results in pregnancy tests.

    The antihistamines contained within Phenergan Elixir can reduce skin reactions that indicate allergies, so you should avoid taking this medicine in the 72 hours before taking a skin prick or patch test to diagnose allergies.

  • Once opened, how long does a bottle of Phenergan Elixir last?

    The Elixir should not be used past one month of opening the bottle. It is recommended that you write the date of opening on the bottle label to avoid confusion. Any remaining Elixir should be disposed of carefully, or returned to a pharmacy. 

  • How can this medicine affect other medicines?

    This medicine should not be taken if you are taking or have taken in the last 14 days, a monoamine oxidase inhibitor (MAOI), egphenelzine, trancylcypromine, or isocarboxazid.
    If this medicine is taken in combination with any other medicine that causes drowsiness, there may be an increased effect of drowsiness.

    If taking a treatment involving histamines (such as for leukaemia), or betahistines (used for treating Ménière's disease), then this medicine should not be used as antithistamines may produce the opposite effect.

  • What is Phenergan?

    Phenergan Tablets contain promethazine hydrochloride, a sedating anti-histamine. It blocks the histamine that the body produces during an allergic reaction.

  • What are Phenergan used for?

    Phenergan Tablets and Elixir can be given to you by a doctor or pharmacist. Pharmacists provide Phenergan in the following situations:

    • To treat allergic conditions such as hay fever or rashes.
    • To treat adults with insomnia.
    • To treat nausea, vomiting or travel sickness.

    Your doctor may also give you Phenergan Tablets and Elixir for the above situations or any of the following:

    • Relaxation before an operation.
    • Sleeping difficulties.
    • Sedation in both adults and children.
    • Nasal congestion associated with colds.
    • For the treatment of hives, hay fever, allergies and rashes.
  • How does Phenergan work?

    Phenergan Tablets and Elixir contain the active ingredient, promethazine, a sedating antihistamine. It prevents the actions of histamine.

    Histamine is a substance produced by the body as part of the immune system. It causes the symptoms of allergic reactions such as inflammation of the airways or skin, rashes, nasal congestion, and itching of the skin, eyes or nose. Promethazine prevents histamine from binding to its receptors in various parts of the body and this stops it from causing the symptoms of allergies.

    Histamine can also cause more severe reactions such as anaphylaxis. Promethazine treats localised allergies such as hay fever and nettle rash, as well as anaphylaxis.

    Promethazine also blocks histamine receptors in the brain in an area called the called the vomiting centre. The vomiting centre causes feelings of sickness and the vomiting reflex. It is activated when it receives nerve messages from the vestibular system in the middle ear about the body’s position.

    When something disturbs the vestibular system, such as head movements when travelling by boat or car, nerve signals are sent from the middle ear to the vomiting centre. The effect can cause motion sickness symptoms. By blocking the histamine receptors in the brain’s vomiting centre, Promethazine prevents disturbances in the middle ear from activating the vomiting reflex, thus preventing motion sickness symptoms.

  • How do I take Phenergan?

    Dosage and frequency will depend on the patient’s age and condition. Follow the instructions in the leaflet or packaging provided with this medication, or your doctor’s instructions.

    • Do not exceed the recommended dose.
    • Phenergan tablets and elixir can be taken either with or without food. The tablets should be swallowed whole with water.
    • Seek medical advice if your symptoms continue despite treatment from your doctor or pharmacist.
    • Do not use this medication for longer than seven days without advice from your doctor.
  • What are the most common side effects of Phenergan?

    Side effects while taking Phenergan can include: gastro-intestinal disturbances (diarrhoea, nausea, constipation, vomiting or abdominal pain), dry mouth, loss of appetite, tiredness, sleepiness, restlessness, dizziness and blurred vision, 

  • When should Phenergan not be used?

    Do not use Phenergan Phenergan Tablets and Elixir if you:

    • Are pregnant or breastfeeding
    • Have an allergy promethazine or any ingredients in Phenergan.
    • Have an allergy to sulphites, phenothiazines or benzoates.
    • Have experienced jaundice caused by other phenothiazine derivatives.
    • Take medicines that interact with Phenergan, including: monoamine oxidase inhibitors (MAOIs), tricyclic antidepressants, sedatives and hypnotics, barbiturates and opioid analgesics.

    Phenergan tablets 25mg should not be administered to children under 2.

  • Do other medications interact with Phenergan?

    Some medications interact with Phenergan Tablets and Elixir. You should not take them while you are being treated with Phenergan unless advised by your doctor. These medications include: monoamine oxidase inhibitors (MAOIs), sedatives and hypnotics, tricyclic antidepressants, barbiturates and opioid analgesics

  • How long should you take Phenergan?

    Continue to take Phenergan Tablets and Elixir for as long as your symptoms persist, or as recommended by your doctor but for no longer than 10 consecutive days. 

  • What should I do if I miss a dose of Phenergan?

    Take a missed dose of Phenergan as soon as you remember, unless it is almost time to take your next dose. In that case, skip the missed dose and take your next dose at its usual time. Do not take two doses at once. 

  • How should Phenergan be stored?

    Store Phenergan in a cool, dry place below 25°C. 

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