The image is for illustration purposes only.
The brand supplied may vary.
£10.99 – £11.99
Promethazine tablet helps you sleep through the night. It is for short-term use only. It is used to treat adults with difficulty sleeping (insomnia). Promethazine is suitable for children aged 16 years and above. Promethazine tablets are a medication primarily used to treat allergies, motion sickness, nausea, vomiting, and sedation.
Active Ingredient: The active ingredient in promethazine tablets is promethazine hydrochloride, which belongs to a class of drugs known as phenothiazines.
Antihistamine: Promethazine acts as an antihistamine, blocking the effects of histamine in the body. This action helps alleviate allergy symptoms such as itching, sneezing, runny nose, and watery eyes.
Antiemetic: Promethazine tablets also possess antiemetic properties, meaning they can help relieve nausea and vomiting. This makes them useful for managing symptoms associated with motion sickness, chemotherapy, or post-operative nausea.
Sedative: Promethazine is known for its sedative effects, which can induce relaxation and sleepiness. It is sometimes prescribed to help individuals with insomnia or to assist with preoperative sedation.
Administration: Promethazine tablets are usually taken orally with or without food. They should be swallowed whole with a full glass of water and not chewed or crushed unless they are specifically designed as orally disintegrating tablets.
Duration of Action: The duration of action of promethazine tablets varies depending on the formulation and dosage strength. Immediate-release tablets typically provide relief within 20 to 30 minutes.
Side Effects: Common side effects of promethazine tablets may include drowsiness, dizziness, dry mouth, blurred vision, constipation, and urinary retention. Serious side effects such as respiratory depression or allergic reactions are rare but can occur, especially with high doses or prolonged use.
Precautions: Promethazine should be used with caution in individuals with certain medical conditions such as asthma, respiratory depression, liver disease, or narrow-angle glaucoma. It may also interact with other medications, including CNS depressants and monoamine oxidase inhibitors (MAOIs).
Pregnancy and Lactation: Promethazine should be used with caution during pregnancy and breastfeeding, as it may pass into breast milk and affect the infant. It is important to consult a clinician before using promethazine in these situations.
Pack Size: 56 tablets
Pharmacy Medicine (P)
The General Pharmaceutical Council (GPhC) and other UK health organisations have produced a handy guide to help people going online for medicines or treatment.
Read the guideline here
If you have a medical emergency do not use this service.
Please contact your own GP, visit Accident and Emergency or call 999 or 111 immediately.
Complete consultation for your selected condition and order your medication.
Please answer the health questionnaire honestly, this will ensure that the medication you are requesting is right for you.
The UK registered prescriber will review your questionnaire and approve your order. In some cases, the prescriber may specify a preferred treatment.
Your treatment will be sent directly from our NHS online pharmacy, Online Chemist based in Norfolk.
Service |
Expected Arrival |
Flat Fee |
Royal Mail Tracked 48 | Usually takes between 2-4 working days, including Saturdays. Can rarely take up to 5 days. | £3.50 |
Royal Mail Tracked 24 | 1-3 day tracked service. Usually arrives the next day*, including Saturdays. | £4.99 |
Royal Mail Special Delivery by 1pm | Guaranteed by the next working day before 1 pm. | £7.50 |
*Please keep in mind only orders placed before 12:00 pm on normal weekdays are dispatched on the same day. This is to give our clinicians and pharmacy staff enough time to check over the answers to your health questionnaire and issue and pack your medication before it is collected by the Royal Mail. The Royal Mail collects our orders at 3.30 pm.
More details: Delivery & return policy
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Online Chemist
82 Middleton Road
Gorleston
Great Yarmouth
Norfolk, NR31 7AH
Phone: 01493 600610
Email: info@onlinechemistuk.net
Superintendent Pharmacist:
Obaidullah Zaman
BPharm, MPharm, PGDip (Pharmacy), MRPharmS, IP
GPhC Reg. Number: 2083409
Pharmacy Premises GPhC Reg. Number: 9011159
Monday 09:00 – 17:00
Tuesday 09:00 – 17:00
Wednesday 09:00 – 17:00
Thursday 09:00 – 17:00
Friday 09:00 – 17:00
Saturday Closed
Sunday Closed
Click here for driving directions
OnlineChemist is a trading name of Nomaz Limited.
Registered in England – 11349276.
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