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Sominex tablets

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What is Sominex?

Sominex is a non-prescription sleep aid that helps people who have trouble falling asleep. It is sold over the counter and contains either diphenhydramine hydrochloride or promethazine hydrochloride, depending on the formulation. These active ingredients are antihistamines with sedative effects, which help relax your body and make it easier to fall asleep.

How Sominex Works

  • Uses antihistamine properties to calm the body.
  • Helps you fall asleep more easily by reducing alertness.
  • Is primarily used for short-term sleep problems that disrupt daily life or cause stress.

Usage Guidelines

Sominex is intended for occasional use rather than continuous, long-term treatment. If you experience persistent sleep issues, it is important to consult a healthcare provider for further advice.

Where to Buy Sominex Online

  • Complete our simple online consultation form.
  • Once approved, you can purchase Sominex directly from courierpharmacy.co.uk.
  • Enjoy fast and discreet delivery right to your door.

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Overview

Active ingredients

What is it for?

How does it work?

How do you use it?

Warnings and precautions

Side effects

Drug interactions

FAQs

Download patent leaflet

Written By
Shazlee Ahsan
BSc Pharmacy, Independent Prescriber, PgDip Endocrinology, MSc Endocrinology, PgDip Infectious Diseases

Superintendant Pharmacist, Independent Prescriber


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What is Sominex?

Sominex is a non-prescription sleep aid that contains 20mg of promethazine as its active ingredient. Promethazine is an antihistamine with calming effects, which makes it effective for easing short-term sleep problems. It helps you fall asleep faster and is meant for occasional use, especially when sleep issues interrupt your daily life. Always consult a healthcare provider before using Sominex, particularly if you have any health conditions or are taking other medications.

Overview

  • Sominex is designed to help people who have difficulty falling asleep.
  • Its active ingredient, promethazine, works as an antihistamine with sedative properties.

How Sominex Works

  • It relaxes the body and signals your brain that it is time to sleep.
  • It is effective in reducing the time it takes to fall asleep.
  • It is best used for short-term sleep disturbances.

Usage and Considerations

  • Sominex is intended for occasional use only.
  • Consult a healthcare provider before starting if you have any existing conditions or are on other medications.

Where to Buy Sominex Online

  • Complete our quick online consultation form.
  • Once approved, you can purchase Sominex directly from courierpharmacy.co.uk.
  • Enjoy fast, discreet delivery straight to your door.

Active Ingredient in Sominex

Key Ingredient Details

  • Each Sominex tablet contains 20mg of promethazine.
  • Promethazine is the main active compound that gives the tablet its sedative and antihistamine benefits.

Order Sominex Online

  • Complete our online consultation form.
  • Once approved, you can purchase Sominex directly from courierpharmacy.co.uk.

What is Sominex Used For?

Purpose and Benefits

Sominex tablets contain promethazine hydrochloride, an antihistamine that provides a sedative effect. It is used as a nighttime sleep aid to help manage short-term sleep issues, such as difficulty falling or staying asleep. This medication is particularly useful when temporary changes in your routine disrupt your sleep pattern.

Where to Buy Sominex Online

  • Complete our quick online consultation form.
  • Once approved, you can purchase Sominex directly from courierpharmacy.co.uk.

How Does Sominex Work?

Mechanism of Action

  • Sominex works by using promethazine hydrochloride, an antihistamine with sedative properties.
  • It blocks histamine, a natural chemical in your body that promotes wakefulness.
  • By inhibiting histamine’s effects, Sominex reduces brain activity, making it easier to fall asleep and stay asleep.
  • This action provides short-term relief from sleep disturbances and helps restore a regular sleep pattern.

Where to Buy Sominex Online

  • Complete our quick online consultation form.
  • Once approved, you can purchase Sominex directly from courierpharmacy.co.uk.
  • Enjoy fast, discreet delivery straight to your door.

How Do You Take Sominex?

Dosage Guidelines

  • Take one Sominex tablet daily, right before bedtime.
  • Do not use Sominex for more than seven days in a row.
  • If your sleep does not improve after seven days, stop using Sominex and consult your doctor or pharmacist.

Where to Buy Sominex Online

  • Complete our quick online consultation form.
  • Once approved, order Sominex directly from courierpharmacy.co.uk.
  • Enjoy fast, discreet delivery straight to your door.

Who Should Not Take Sominex?

When Not to Use Sominex

  • Do not take Sominex if you are allergic to any ingredients listed in the patient information leaflet.
  • Avoid using this medication if you have an allergy to phenothiazine drugs (commonly used for mental illness, severe nausea or vomiting, or vertigo, such as chlorpromazine or pericyazine).
  • Do not use Sominex if you have recently experienced a concussion, head injury, or symptoms like light-headedness, drowsiness, or dizziness.
  • Do not take Sominex if you have used monoamine oxidase inhibitors (MAOIs) for depression within the last two weeks.
  • This medication is intended for short-term sleep issues and should not be used for more than 7 days without consulting a doctor.
  • Avoid consuming alcohol while taking Sominex.

Where to Buy Sominex Online

  • Complete our quick online consultation form.
  • Once approved, you can purchase Sominex directly from courierpharmacy.co.uk.
  • Enjoy fast, discreet delivery straight to your door.

What Are the Side Effects of Sominex?

As with any medication, Sominex can cause side effects, though not everyone will experience them. Older adults may be more prone to side effects or confusion when using this medicine.

Serious Side Effects

If you experience any of the following, stop using Sominex immediately and seek medical help:

  • Severe allergic reactions, such as trouble breathing, swelling of the mouth or skin, vomiting, or abdominal pain.
  • Jaundice, which causes yellowing of the skin or eyes.
  • Irregular heartbeats or palpitations.
  • Low blood pressure that leads to dizziness or lightheadedness.
  • Blurred or reduced vision, or eye discomfort.
  • Anemia, resulting in fatigue and low energy.
  • A drop in white blood cells and platelets, which can lead to mouth or throat ulcers, high fever, and easy bruising.
  • Convulsions.

Additional Side Effects

If you notice any of these or other unexpected reactions, stop taking Sominex and consult your doctor or pharmacist:

  • Drowsiness.
  • Dizziness or headaches.
  • Lack of coordination or confusion.
  • Tremors or shaking.
  • Upset stomach or dry mouth.
  • Difficulty urinating.
  • Restlessness or unusual excitement.
  • Increased sensitivity to sunlight.
  • Trouble sleeping.
  • Tinnitus (ringing in the ears).
  • Nasal congestion or a blocked nose.

Where to Buy Sominex Online

  • Complete our quick online consultation form.
  • Once approved, you can purchase Sominex directly from courierpharmacy.co.uk.
  • Enjoy fast, discreet delivery straight to your door.

Does Sominex Interact with Other Medicines?

Before using Sominex, it is important to note that you should not take it if you have used MAOIs (monoamine oxidase inhibitors) for depression within the past two weeks. This can lead to dangerous interactions. Also, Sominex is meant for short-term relief of sleep problems and should not be used for more than 7 days without consulting a doctor.

Other Drug Interactions

  • CNS Depressants: Using Sominex with other central nervous system depressants, such as alcohol, sedatives, or tranquilizers, may increase drowsiness and affect your thinking and coordination.
  • Anticholinergic Drugs: When taken with anticholinergic medications (for example, those used for asthma, COPD, or irritable bowel syndrome), side effects like dry mouth, blurred vision, constipation, and difficulty urinating may become more noticeable.
  • Blood Pressure Medications: Sominex can interact with drugs that lower blood pressure, which might cause your blood pressure to drop too low, leading to dizziness or fainting.
  • Other Antihistamines: Taking additional antihistamines along with Sominex can boost the risk of side effects such as drowsiness, dry mouth, and blurred vision.
  • Antidepressants: Apart from MAOIs, other antidepressants, like tricyclics (for example, amitriptyline), may interact with Sominex and increase the chance of side effects like drowsiness and confusion.

Important Reminder

Always inform your doctor or pharmacist about all the medications you are taking. This helps avoid potential interactions and ensures that you use Sominex safely.

Where to Buy Sominex Online

  • Complete our quick online consultation form.
  • Once approved, you can order Sominex directly from courierpharmacy.co.uk.
  • Enjoy fast, discreet delivery straight to your door.

Sominex FAQs

What is Sominex?

Sominex is an over-the-counter sleep aid that contains promethazine hydrochloride, an antihistamine with sedative effects. It is designed to help people who have difficulty falling asleep or staying asleep.

How Does Sominex Work?

Sominex works by blocking histamine receptors in the brain. This action lowers brain activity and induces drowsiness, which makes it easier to fall asleep and remain asleep throughout the night.

Who Should Not Take Sominex?

Sominex is not suitable for individuals who:

  • Are allergic to promethazine or any of its ingredients.
  • Have taken monoamine oxidase inhibitors (MAOIs) for depression in the past two weeks.
  • Suffer from conditions such as glaucoma, respiratory problems, or have a history of severe dizziness or head injury.

Can Sominex Be Taken With Other Medications?

Exercise caution when combining Sominex with other drugs. It may interact with:

  • Central nervous system depressants.
  • Other antihistamines.
  • Antidepressants.
  • Anticholinergic medications. Always consult your doctor or pharmacist before mixing Sominex with other medicines.

How Long Can I Use Sominex?

Sominex is intended for short-term relief of sleep issues and should not be used for more than seven consecutive days. If your sleep problems persist beyond this period, consult your doctor for further evaluation.

What Are the Possible Side Effects of Sominex?

Common side effects include:

  • Drowsiness
  • Dizziness
  • Dry mouth
  • Headaches

Serious side effects, although rare, may include:

  • Allergic reactions such as difficulty breathing or swelling
  • Jaundice (yellowing of the skin or eyes)
  • Irregular heart rhythms
  • Low blood pressure

If you experience any severe side effects, stop taking Sominex immediately and seek medical help.

Can I Drink Alcohol While Taking Sominex?

No, alcohol should be avoided while taking Sominex as it can intensify the sedative effects, leading to increased drowsiness, impaired coordination, and other adverse reactions.

Is Sominex Safe for Elderly People?

Elderly individuals may be more sensitive to Sominex and its side effects, such as confusion, dizziness, and drowsiness. It is important for older adults to consult a healthcare provider before using this medication.

How Should Sominex Be Taken?

Sominex should be taken exactly as directed:

  • Take one tablet just before bedtime.
  • Swallow the tablet with water.
  • Do not use Sominex for more than seven consecutive nights without consulting your doctor.

What Should I Do If I Miss a Dose of Sominex?

Since Sominex is taken on an as-needed basis for sleep, there is no need to take a missed dose. Simply resume your normal dosing schedule at your regular bedtime. Do not double the dose to make up for a missed one.

Where to Buy Sominex Online

  • Complete our quick online consultation form.
  • Once approved, you can purchase Sominex directly from courierpharmacy.co.uk.
  • Enjoy fast, discreet delivery straight to your door.

Download patient leaflet

No profile picture available.
Checked By
No author selected.
No qualification available.
No user selected.
Written By
Shazlee Ahsan
BSc Pharmacy, Independent Prescriber, PgDip Endocrinology, MSc Endocrinology, PgDip Infectious Diseases

Superintendant Pharmacist, Independent Prescriber


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