Back To Top

Phenergan

Looking to alleviate allergies, motion sickness, or manage nausea and vomiting? Buy Phenergan online, a trusted medication containing promethazine from Meds for Less. With its antihistamine properties, Phenergan effectively blocks histamine, providing relief from common allergy symptoms. It also acts as a sedative and antiemetic, making it useful for calming travel sickness or managing nausea associated with certain conditions or treatments. Available in tablet, Phenergan offers fast-acting relief within 20-30 minutes of ingestion.

Product images are for illustrative purposes only, and you may receive a different licensed alternative.

Order within

  • 00h
  • 00m
  • 00s

to receive your order on Monday June 16, 2025

*Product images are for illustrative purposes only, and you may receive a different licensed alternative.
Price Checker

£10.99£14.99

related products

You may also like

More Product information

What is Phenergan (Promethazine Hydrochloride) Used For?

Phenergan (Promethazine Hydrochloride) is an antihistamine that is used to treat a variety of conditions, including allergies, motion sickness, nausea and vomiting. It works by blocking the effects of histamine, a chemical that is relased during and allergic reaction and can cause symptoms such as itching, sneezing, and a runny nose. In addition to its antihistamine properties, Phenergan also has sedative effects, which can be helpful in managing conditions like insomnia and anxiety.

Where Can I Buy Phenergan UK?

Phenergan is a prescription only medicine. If you are looking to buy Phenergan online, it’s important you’re buying from a reputable source, such as Meds for Less, and only after consulting with a healthcare professional.

What is in Phenergan?

The active ingredient in Phenergan is promethazine hydrochloride. Each Phenergan tablet typically contains 25mg of promethazine hydrochloride. In addition to the active ingredient, Phenergan tablets also contain other inactive ingredients that help form the tablet and aid in its absorption, such as lactose, maize starch, povidone, magnesium stearate, and hypromellose. It’s worth noting that different formulations of Phenergan, such as Phenergan Elixir or Phenergan injection, may have slightly different inactive ingredients to suit their specific dosage forms. It’s always a good idea to check the product packaging or consult the package insert for a comprehensive list of ingredients specific to the Phenergan formulation you have.

What Are The Dosage Instruction For Phenergan?

For Allergies: Children aged 5-10: Take 1 x 25mg tablet at night. Children over 10, adults, and the elderly: Start with 1 x 25mg tablet at night and increase to a maximum of 1 x 25mg tablet twice a day if necessary. For Nausea or Travel Sickness: Children aged 5-10: Do not buy Phenergan 25mg tablets. Instead, use Phenergan Elixir or buy Phenergan 10mg tablets. Children over 10, adults, and the elderly: Take 1 x Phenergan 25mg tablet the night before traveling. Repeat after 6-8 hours if needed. For Short-term Sedation or Insomnia: Children aged 5-10: Take 1 x Phenergan 25mg tablet at night. Children over 10, adults, and the elderly: Take 1-2 x Phenergan 25mg tablets at night. Do not exceed the recommended daily dose.

Is Phenergan Over the Counter in the UK?

No, Phenergan (promethazine) is not available over the counter in the UK. It is a prescription medication, which means you will need a prescription from a healthcare professional, such as a doctor, to obtain it. When you buy Phenergan from Meds for Less, you will complete a short text-based consultation with a doctor, which will then be used to generate a prescription if appropriate.

How Long Does It Take Phenergan to Work?

The onset of action for Phenergan (promethazine) can vary depending on the individual and the method of administration. Here are some general guidelines: Oral tablets or Phenergan liquid (Phenergan Elixir): Phenergan taken orally typically starts to take effect within 20 to 30 minutes after ingestion. However, it may take up to 1 hour for the full effects to be felt.

What Is Phenergan and What Is It Used For?

You may have heard of Phenergan, the brand name for a medication called Promethazine in the context of allergy medications. This is because Phenergan/Promethazine is a type of antihistamine, a class of medication used to manage allergy type symptoms such as hives and hay fever. However, Phenergan can actually also be used to help with nausea from motion sickess or runny nose and other cold-like symptoms. Handy right? If you are buying phenergan online, here is some information about the medication that you might want to know before you get it.

Phenergan is the commercial name for a medication called Promethazine. Phenergan (or Promethazine) is an antihistamine which is a type of medication typically used in the management of allergies such as hives and hay fever. It can also be used for:

  • Sleeping problems – Phenergan is a drowsy antihistamine.
  • Nausea and vomiting – For example nausea from motion sickness 
  • Cold-like symptoms – Coughs and Runny nose

In pharmacies, Phenergan (Promethazine) is often found as an oral phenergan pill but it can also come as a liquid.

Main Benefits of Phenergan Tablets

Most of the other antihistamines such as cetirizine and loratadine do not cause drowsiness. However, phenergan tablets are different as it is a drowsy antihistamine; this can be hugely beneficial for people whose allergy symptoms like itchiness, hives, runny nose, watery/itchy eyes are affecting their sleep. Phenergan can help relieve the itching and help you sleep at the same time. 

Additionally, Phenergan tablets are helpful in managing nausea from motion sickness which is a common (and dreaded) experience for many people.

Who Can Take Phenergan?

Generally, most adults can take Phenergan unless you have:

  • history of an allergic reaction to Phenergan
  • bladder problems
  • a condition causing seizures/fits
  • primary angle closure glaucoma

If you are trying to conceive, you are pregnant, or you are breastfeeding, Promethazine is generally considered safe but it is best to consult a doctor as they may suggest switching to a different antihistamine.

The situation is slightly more complicated with children although generally most children above 6 years old can take phenergan allergy tablets. Certain types of promethazine are only suitable for children above 12 or even 16. Therefore, it is best to consult a doctor if you feel your child would benefit from Promethazine.

How to Use Phenergan Safely

There are a few key points to remember for taking Phenergan/Promethazine safely:

Potential problem

Advice 

Taking too much

Take care not to take too much Phenergan.


  • if you use liquid Phenergan, use a syringe to measure the correct dose, do not use a kitchen teaspoon as this is not accurate.

  • If you miss a dose, do not take it to make up missing it. Just wait to take the next dose at your usual time.

  • If you accidentally take too much, you may feel your heart racing/pounding, or have breathing problems. Children may start to display unsteady or uncontrolled movements.

  • Call 111 or consult a medical professional if you have taken too much Phenergan.

Driving and heavy machinery 

Unlike other common allergy medication phenergan causes drowsiness. Do not drive or operate heavy machinery if you have taken Phenergan

Interactions with other medications

Phenergan can interact with many medications from certain painkillers to antidepressants. Tell your doctor about the other medications you are taking so they can assess if Phenergan is safe and suitable for you. 

Alcohol

Do not drink alcohol if you are taking Phenergan. It can be sedating and may even lead to breathing problems.

Dosage Guidelines and Administration Tips

Follow your doctor’s instructions about dosage and administration of Phenergan. This is because the dosage and form (tablet versus liquid) of Phenergan will depend on many factors such as 1) whether you are a child or adult, and 2) what condition you are using Phenergan for. 

For example:

  • for motion sickness: phenergan 25mg tablets. You take one around 1-2 hours before travelling. You can buy phenergan 25mg 56 tablets for £14.99 at Medsforless.
  • for hay fever and hives: you might start on 10mg tablets. You take one two times a day. You can buy 56 tablets of 10mg phenergan for £10.99 at Medsforless.

If you are using the liquid version, follow your doctor’s instructions and use a syringe to accurately measure the amount. A kitchen spoon is not accurate enough.

Side Effects and Warnings

Not everyone experiences side effects when taking Phenergan/Promethazine but some common ones are:

  • feeling tired through the day
  • headaches
  • dizziness
  • feeling like your mouth is dry
  • restlessness

If these side effects persist or start to affect your daily life, it is best to consult a doctor.

Additionally, if you experience any more serious side effects such as the ones below, it is best to seek medical advice quickly (e.g call 111):

  • if you are having difficulties peeing
  • if you notice your skin or the white part of your eyes is turning yellow
  • if you notice any unusual muscle or face movements
  • serious allergic reaction (sudden swelling, struggling to breathe, sudden rash etc.); in this case you must seek emergency medical help by calling 999.

Phenergan (Promethazine Hydrochloride) is an antihistamine that is used to treat a variety of conditions, including allergies, motion sickness, nausea and vomiting. It works by blocking the effects of histamine, a chemical that is relased during and allergic reaction and can cause symptoms such as itching, sneezing, and a runny nose.

In addition to its antihistamine properties, Phenergan also has sedative effects, which can be helpful in managing conditions like insomnia and anxiety.

Phenergan is a prescription only medicine. If you are looking to buy Phenergan online, it’s important you’re buying from a reputable source, such as Meds for Less, and only after consulting with a healthcare professional.

The active ingredient in Phenergan is promethazine hydrochloride. Each Phenergan tablet typically contains 25mg of promethazine hydrochloride. In addition to the active ingredient, Phenergan tablets also contain other inactive ingredients that help form the tablet and aid in its absorption, such as lactose, maize starch, povidone, magnesium stearate, and hypromellose.

It’s worth noting that different formulations of Phenergan, such as Phenergan Elixir or Phenergan injection, may have slightly different inactive ingredients to suit their specific dosage forms. It’s always a good idea to check the product packaging or consult the package insert for a comprehensive list of ingredients specific to the Phenergan formulation you have.

For Allergies:

Children aged 5-10: Take 1 x 25mg tablet at night.
Children over 10, adults, and the elderly: Start with 1 x 25mg tablet at night and increase to a maximum of 1 x 25mg tablet twice a day if necessary.

For Nausea or Travel Sickness:

Children aged 5-10: Do not buy Phenergan 25mg tablets. Instead, use Phenergan Elixir or buy Phenergan 10mg tablets.

Children over 10, adults, and the elderly: Take 1 x Phenergan 25mg tablet the night before traveling. Repeat after 6-8 hours if needed.

For Short-term Sedation or Insomnia:

Children aged 5-10: Take 1 x Phenergan 25mg tablet at night.

Children over 10, adults, and the elderly: Take 1-2 x Phenergan 25mg tablets at night.

Do not exceed the recommended daily dose.

No, Phenergan (promethazine) is not available over the counter in the UK. It is a prescription medication, which means you will need a prescription from a healthcare professional, such as a doctor, to obtain it.

When you buy Phenergan from Meds for Less, you will complete a short text-based consultation with a doctor, which will then be used to generate a prescription if appropriate.

Recently Viewed