What do you want to do?
Phenergan is a fast and effective treatment against nausea and vomiting. It also fights the frustrating symptoms of allergies and hay fever: such as rashes, itching, watery eyes, and runny nose.
Order Phenergan online today for quick and effective treatment of nausea, motion sickness or allergy symptoms.
We know health, but you know you.
Our experts tell you what’s safe, but you decide what’s best.
Answer a few questions and tell us about yourself. Get tailored advice from our clinicians so you can choose better.
Choose your treatment and how often you have it delivered.
We know things change. It’s the nature of life. We’ll check in regularly to make sure your treatment is still right for you.
Pause. Change. Skip. Start again. Any time you like.
Brilliant service as usual !!
My enquiry and eventual purchase was made easy and very professionally handled…
A very professional service. Effucuebt and reliable. My medication was despatched the next day. Would highly recommend this service.
Prompt professional no hassle service with speedy delivery and reasonable prices. Very pleased
Quick delivery and good thorough communication
The website was easy to use and I was kept informed by email through the process. Couldn’t believe how quick the whole process was . My much needed medication was delivered the next day ! Will definitely be signposting friends and family and will also use this service again, thank you .
Motion Sickness: Here are some other options.
Phenergan is an anti-nausea medication that works to combat the symptoms of nausea and motion sickness. It’s often used for the effects of day-to-day issues such as travel sickness, but in rarer cases it can also be used to treat the after-effects of surgery ― like vomiting and pain ― that can be felt after you’ve had an operation.
Phenergan’s active ingredient, promethazine hydrochloride, is a type of drug called a phenothiazine. It works by blocking a natural chemical called histamine that your body produces during an allergic reaction. This means that as well as being an effective treatment against nausea, Phenergan is also used for reducing allergy symptoms.
Phenergan works by lowering the effects of histamine in the brain, changing the way the chemicals in your brain take action. Its active ingredient, promethazine, works by dulling the sensitivity of histamine receptors in the part of your brain associated with vomiting.
Promethazine blocks histamine receptors without actually stopping the release of histamine. This stops the vomiting centre from becoming activated by inflammatory stimulus, and so helps to stop nausea and motion sickness.
Phenergan comes in doses of 10mg, 20mg and 25mg doses for adults, to be taken two to three times per day. The dosage will depend on the type and strength of your nausea. You should always refer to the patient information leaflet for details.
Treatments for Hyperemesis Gravidarum and Nausea and Vomiting in Pregnancy: A Systematic Review. Journal of American Medical Association 2016, 316(13), 1392-1401.
Marijuana, Ondansetron, and Promethazine Are Perceived as Most Effective Treatments for Gastrointestinal Nausea. Digestive diseases and sciences, 65(11), 3280–3286.
You should take Phenergan as instructed by your clinician, and in line with your patient information leaflet. If you’re unsure, you can always talk to our clinician for help.
The dose you’ll take will depend on the reason that you’re taking Phenergan (whether it’s for nausea and vomiting, allergies, or as a sedative). To take Phenergan, you must:
Phenergan is a quick and effective treatment for nausea, and the symptoms of nausea should reduce within 20 minutes of taking it. Don’t take more than the prescribed amount if your symptoms don’t feel like they’re getting better. Always remember to speak to your doctor or clinician for advice if you’re not sure about anything.
Phenergan shouldn’t be taken for more than a period of seven days. If your symptoms haven’t gone down within the week you should talk to our clinician, who can advise you of what your next course of action could be.
If you accidentally take more Phenergan than you’ve been advised to by your clinician, then you should seek medical help as soon as possible. Don’t take an extra dose to make up for a forgotten dose, just take it when you remember or skip that dose if it’s too close to your next one.
How we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
Have something specific you want to know? Search our info below, or ask our experts a question if you can’t find what you’re looking for.
If you made a mistake on the gender selection, you can amend this by pressing 'Cancel' below and changing your gender. If you entered the correct gender but made a mistake on the treatment category selection, you can choose a different category by pressing 'Choose other treatment' below.
Submit your question here, or tell us if you’ve found an issue on our site.
We’ll get back to you very soon. We aim to respond to all queries in one working day.
You’re signed up to our newsletter. Keep an eye on your inbox for our latest update.
You can continue as a guest, or sign in with your Treated account if you have one.