Phenergan is a promethazine-based, sedating antihistamine brand commonly chosen for short-term allergy symptom relief (including hay fever and itchy skin reactions) and for preventing travel sickness. This page brings together the main Phenergan tablets and Phenergan Elixir options so you can compare strength, format and pack size before you buy online.
Whether you’re looking for promethazine for hay fever, shopping for Phenergan for travel sickness, or deciding between Phenergan 10mg vs 25mg, use the links below to jump straight to the product type that fits your needs. Promethazine can cause drowsiness and isn’t suitable for everyone, so always read the patient information leaflet, check age guidance, and review warnings and interactions.
Shop by Phenergan product type
Popular Phenergan products
Why choose Phenergan
- Recognised promethazine antihistamine brand with multiple formats
- Easy strength comparison to help you choose between 10mg and 25mg options
- Commonly selected for travel when a sedating antihistamine is appropriate
- Tablet and oral solution choices including Phenergan Elixir for those who prefer liquid
- Leaflet-led selection to help you check suitability, warnings and interactions
Quick links: brand needs
FAQs
What is Phenergan used for?
Phenergan contains promethazine, a sedating antihistamine that may be used for short-term relief of allergy symptoms (such as hay fever or itchy skin reactions) and for prevention of travel sickness. Check the label and patient leaflet for licensed uses and suitability.
How do I choose between Phenergan 10mg and Phenergan 25mg?
These products differ by strength. The right option depends on the product directions, your age, and your personal circumstances. Read the patient information leaflet and ask a pharmacist if you’re unsure which strength is appropriate for you.
Which Phenergan option is best for travel sickness?
Some people choose promethazine tablets for travel sickness, following the leaflet instructions. If you’re buying for a child, you take other medicines, or you have an underlying condition, speak to a pharmacist before use.
Can Phenergan make you drowsy?
Yes. Promethazine can cause drowsiness, dizziness, or reduced alertness. Avoid alcohol and follow the leaflet advice about driving or using machinery, especially when you first start taking it.
What’s the difference between Phenergan tablets and Phenergan Elixir?
They contain the same active ingredient (promethazine) but come in different formats: tablets in different strengths and an oral solution (liquid) measured in mg per 5ml. Suitability can vary by age and individual factors, so check the leaflet.
How should I store Phenergan products?
Store medicines as directed on the packaging and in the patient leaflet, and keep them out of sight and reach of children. For liquids, follow any storage and “use within” guidance on the bottle and leaflet.
Can I take Phenergan with other medicines?
Promethazine can interact with some medicines, including other products that cause drowsiness. Check the leaflet and ask a pharmacist if you take regular medication or have ongoing health conditions.
Safety note: Phenergan is not suitable for everyone. Always read the label and patient information leaflet and use only as directed. Ask a pharmacist for advice if you’re unsure, and contact a GP or urgent care if symptoms are severe, worsening, or you experience breathing difficulty, facial swelling, or significant drowsiness.
