Further Information

What is Sominex?

Sominex is a short-term sleep aid used to help relieve occasional sleeplessness. Each tablet contains promethazine hydrochloride 20 mg, a sedating antihistamine that helps reduce restlessness and supports falling asleep when normal sleep patterns are temporarily disrupted.

How Does Sominex Work?

Sominex contains promethazine, an antihistamine with calming and sedative properties. It works by reducing alertness and helping the body relax, making it easier to drift off when temporary lifestyle factors—such as stress, travel, or changes in routine—affect your ability to sleep.

How to Take Sominex

For best results, follow these guidelines:

• Dosage: Adults should take one tablet around 20 minutes before bedtime, unless advised otherwise.
• Administration: Swallow the tablet whole with water.
• Short-Term Use: Use only for occasional sleeplessness. If symptoms persist for more than a few days, seek medical advice.
• Avoid Alcohol: Alcohol may increase drowsiness and is best avoided while using Sominex.

Who Is Sominex For?

Sominex is suitable for adults experiencing temporary difficulty sleeping.

It is not suitable for:

• Pregnant or breastfeeding individuals
• Anyone taking certain medicines that interact with antihistamine
• People with specific medical conditions (check the leaflet or speak to a pharmacist)

Always read the label and patient information leaflet for full guidance.

Possible Side Effects

Like all medicines, Sominex may cause side effects, though not everyone experiences them. These may include:

• Drowsiness the next day
• Dry mouth
• Blurred vision
• Dizziness
• Constipation or urinary retention (more likely in older adults)

If you feel very sleepy the next day, avoid driving or operating machinery. If side effects are severe or persistent, seek medical advice.

Precautions

• Avoid drinking alcohol while taking Sominex.
• Do not take with other sedating medications unless advised by a healthcare professional.
• Do not use if you need to be alert the next morning for driving, work, or childcare.
• Speak to a pharmacist or doctor if you have glaucoma, prostate problems, breathing issues, or are on any other medication.

Where to Buy Sominex in London

You can purchase Sominex conveniently from King’s Pharmacy Online, a trusted London pharmacy offering fast, reliable service. Same-day delivery is available within London, providing quick access when you need support for temporary sleeplessness.

Why Buy from King’s Pharmacy Online?

• Genuine, pharmacy-supplied products
• Fast dispatch and same-day delivery across London
• Competitive pricing
• Professional customer support from qualified pharmacy staff

How to Store Sominex

Keep Sominex in its original packaging, stored in a cool, dry place away from moisture and heat.

• Keep out of reach and sight of children
• Do not use after the expiry date
• Do not store above 25°C