Sominex Sleep Aid (Promethazine)

Price Checker
Buy Sominex now 
Free shipping on all orders over £50

Receive it:
Order within:

Relieve temporary insomnia with these effective sleeping tablets.

Strength: 20mg

What is Sominex and when is it used?

Sominex tablets are an effective sleeping aid used to treat short-term insomnia. It contains the active ingredient promethazine hydrochloride. It’s suitable for adults over the age of 16 who are experiencing temporary difficulty sleeping.

Can I buy Sominex over the counter?

Sominex is available over the counter in the UK. Your doctor or pharmacist will ask a few questions to make sure the medication is suitable for you.

What is the recommended dosage of this treatment?

The recommended dosage of Sominex is one tablet per day, just before you go to bed. The medication should not be taken for more than seven days in a row. If your sleep has still not improved after seven days, you should stop treatment and consult your GP or pharmacist.

When should Sominex not be used?

Sominex should not be used if you are allergic to promethazine hydrochloride or any of the other listed ingredients. You should not take this medication if you have recently had any head injury, such as concussion or a strong blow to the head. Do not take this medication if you are feeling dizzy or lightheaded.

How should I store Sominex?

Sominex should be stored in a dry, cool environment that does not exceed 25°C.

 Information Leaflet

Always read the patient information leaflet before commencing treatment.

Sominex Reviews

9.6/ 10
Truspilot logo
Google logo
Feefo logo

Based on 65 independent customer reviews taken by Feefo (see all Feefo Reviews), Google and Trustpilot (see all Trustpilot Reviews).

(read on Feefo)
"Good choices of product good prices quick delivery."

Product Review:

"These work a treat when I'm struggling to sleep."

Service Review:

"Good products.good prices quick delivery."

(read on Feefo)
"Great on line Pharmacy"

Product Review:

"Had trouble sleeping so ordered Sominex tablets"

Service Review:

"Very quick delivery The Pharmacist asked a couple of relevant questions and my order processed and sent out same day"

"Exceptionally good service"

Product Review:

"Fantastic, I have never found anything before that I can buy over the counter that help me sleep but Sominex does."

Service Review:

"Exceptionally good service, quick delivery, I would recommend this pharmacy."

(read on Feefo)

Product Review:

"Fast delivery. No problem at all I got delivered quickly what I ordered"

Service Review:

"Fab service...quick delivery"

"Used this company 2 or 3 times now"

Product Review:

"Grand item that really does the trick if you're suffering a few bad nights"

Service Review:

"Used this company 2 or 3 times now and they're brilliant. Good range of items always seem to be in stock and delivery very quick - even in these difficult times. Will keep-on using"

(read on Feefo)

Product Review:

"Bring set system. Would buy again **"

Service Review:

"Brilliant service, deliver on time great product and price of the hood"


Product Review:

"Worked moderately well"

Service Review:

"Does as described"


Product Review:

"Brilliant! Work a treat. Don 't overuse a d take earlier than recommended because they do cause drowsiness the following day if taken too late but otherwise, does exactly what it says. Best non prescription sleeping aid 👍👍👍"

Service Review:

"Great, fast service. Got exactly what I ordered, delivered when stated. Couldn't fault"

"Prompt and reliable service"

Product Review:

"Fantastic product just enough to help you sleep through the night."

Service Review:

"Prompt and reliable service. I cannot recommend them highly enough."

(read on Feefo)

Product Review:

"Works well... Easy to take"

Service Review:


We've partnered with
Get 10% off a brand new e-bike thanks to our exclusive partnership with E-Bikes direct.

Discreet service

With our discreet packaging you can order in confidence.

We never use our brand name on bills, delivery papers or your bank statement.

All our packages are completely plain, without any details of what’s inside or who has sent it.

Estimated delivery

Signed For 1st Class

£2.90 - Saturday 22 January

Collect from your Post Office

£3.95 - Saturday 22 January

Special Delivery 1pm Guaranteed

£5.95 - Saturday 22 January by 1pm

Special Delivery 9am Guaranteed

£13.95 - Saturday 22 January by 9am

Same Day Delivery

from £4.95 - Friday 21 January

How it works

Complete a
FREE online consultation
Select your
Express delivery

Related articles

Make sure you’re fully prepared to navigate international travel as restrictions ease.
New "miracle" weight loss remedies seem to surface each week, but the answer might lie in the simple activity we spend a third of our lives doing: sleeping. Find out how bad quality sleep can hinder your weight loss efforts.