Phenergan Elixir 5mg/5ml Oral Solution 100ml

Phenergan Elixir 5mg/5ml Oral Solution (100ml) is an antihistamine medicine containing promethazine hydrochloride. It is used to help relieve symptoms of allergy such as hay fever and urticaria (hives), and it may also be used to help prevent or treat travel (motion) sickness. This medicine can cause drowsiness and should be used carefully, following the directions provided by a pharmacist or prescriber.

What is Phenergan Elixir 5mg/5ml Oral Solution?

Phenergan Elixir is a liquid medicine that contains promethazine hydrochloride (5mg in every 5ml). Promethazine is a first-generation antihistamine. It is supplied as an oral solution (elixir), which can be measured and taken by mouth using a suitable measuring device.

How it works

Promethazine works mainly by blocking H1 histamine receptors. Histamine is a natural chemical released during allergic reactions and can contribute to symptoms such as sneezing, runny nose, watery eyes, itching, and skin rashes. By reducing the effects of histamine, Phenergan can help ease these symptoms. Promethazine may also have anti-sickness effects and can cause sedation, which is why it is sometimes used for travel sickness or short-term relief of night-time allergy symptoms when advised by a healthcare professional.

What it is used for

Phenergan Elixir may be used to help with:

• Allergy symptoms such as hay fever (seasonal allergic rhinitis) and other allergic reactions
• Urticaria (hives) and itching associated with allergic skin conditions
• Prevention and treatment of travel (motion) sickness
• Short-term sedation in specific situations, only when recommended by a healthcare professional

If you are managing discomfort alongside other everyday symptoms, you may also find helpful information within our Aches & Pains range or the Pain Relief hub, depending on your needs.

Dosage & How to Take

Always follow the instructions on the label or those provided by your pharmacist or prescriber. Doses vary depending on age and the reason for use. Use a medicine spoon or oral syringe to measure the dose accurately (do not use a kitchen teaspoon).

General guidance (may not be suitable for everyone):

• Adults and adolescents: Dose depends on the condition being treated. For allergy symptoms, promethazine is often taken once daily (usually at night if drowsiness occurs) or in divided doses as advised. For travel sickness, it may be taken before travel as directed.
• Children aged 2 years and over: Dose depends on age and bodyweight. A healthcare professional should advise on the correct dose.

Important: Do not give to children under 2 years old unless specifically prescribed. Do not exceed the recommended dose. If symptoms persist, worsen, or you are unsure which dose applies to you, speak to a pharmacist.

Important Safety Information

Do not take Phenergan Elixir if:

• You are allergic to promethazine or any of the other ingredients
• You are in a coma or have severe central nervous system depression
• The patient is under 2 years of age, unless specifically prescribed (due to risk of serious breathing problems)

Speak to a pharmacist or doctor before use if you:

• Have asthma, chronic bronchitis, COPD, or any breathing difficulties
• Have epilepsy or a history of seizures
• Have glaucoma (raised pressure in the eye)
• Have difficulty urinating or prostate problems
• Have severe liver problems
• Are pregnant, trying to become pregnant, or breastfeeding

Drowsiness and daily activities: Phenergan commonly causes drowsiness. Do not drive, cycle, or use tools or machinery if you feel sleepy, dizzy, or your vision is affected. Avoid alcohol as it can increase drowsiness.

Interactions: Tell your pharmacist about any medicines you are taking, including prescription, over-the-counter, and herbal products. Phenergan may interact with medicines that cause drowsiness (such as sleeping tablets, some strong pain medicines, or anxiety medicines), as well as some antidepressants and other antihistamines.

Side effects: Side effects may include drowsiness, dizziness, dry mouth, blurred vision, constipation, or difficulty passing urine. If you develop signs of an allergic reaction (such as swelling of the face/lips/tongue or difficulty breathing), seek urgent medical help.

Frequently Asked Questions

What is Phenergan Elixir used for?

Phenergan Elixir is used to help relieve allergy symptoms (such as hay fever and hives) and may also be used to help prevent or treat travel (motion) sickness. In some cases, it may be used for short-term sedation when advised by a healthcare professional.

What is the active ingredient and strength?

The active ingredient is promethazine hydrochloride. The strength is 5mg per 5ml of oral solution.

How quickly does Phenergan start to work?

Effects may begin within around 20 to 60 minutes, although this can vary between individuals and depending on the reason for use.

Can Phenergan make you sleepy?

Yes. Drowsiness is a common side effect. If you feel sleepy or your vision is affected, avoid driving and activities that require concentration.

Can I take Phenergan for hay fever?

Phenergan may help relieve hay fever symptoms such as sneezing, runny nose, and itchy or watery eyes. If symptoms are ongoing, a pharmacist can advise whether another antihistamine may be more suitable for daytime use.

Can Phenergan Elixir be used for travel sickness?

Yes. Promethazine has anti-sickness effects and may be used to help prevent or treat motion sickness. Follow the dosing instructions provided for travel sickness and avoid alcohol.

Is Phenergan suitable for children?

Phenergan may be used in children aged 2 years and over when advised by a healthcare professional. It must not be given to children under 2 years old unless specifically prescribed.

How should I measure a dose of the elixir?

Use a suitable measuring device such as an oral syringe or medicine spoon. This helps ensure the dose is accurate. Do not use a kitchen teaspoon.

Can I drink alcohol while taking Phenergan?

No. Alcohol can increase drowsiness and other side effects. It is best avoided while taking Phenergan.

Can I take Phenergan with other allergy medicines?

Do not take two antihihistamines at the same time unless a pharmacist or doctor has told you to. Always check before combining allergy treatments.

Can I take Phenergan with pain relief medicines?

Some pain relief medicines can be taken with Phenergan, but medicines that cause drowsiness may increase sedation. If you are using other treatments for discomfort, a pharmacist can advise on suitable options within our Pain Relief section.

What should I do if I miss a dose?

If you miss a dose, take it when you remember unless it is nearly time for your next dose. Do not take a double dose to make up for a missed one.

What should I do if I take too much?

If you take more than the recommended dose, seek urgent medical advice. In the UK you can contact NHS 111 for guidance, or attend A&E in an emergency, especially if there is severe drowsiness, breathing difficulty, or unusual agitation.

How should I store Phenergan Elixir?

Store as directed on the label, out of the sight and reach of children. Do not use after the expiry date. Keep the bottle tightly closed and use within any stated period after opening.

Where can I find help with ordering and delivery?

For information on placing an order and what to expect, please see our How to Shop page. You can also learn more about WithAid on our About Us page.