Sominex, also known by its generic name, is a medication primarily used to treat insomnia. Its active ingredient is the sedating antihistamine promethazine hydrochloride. Sominex works by inhibiting the actions of histamine, a chemical in the body that is involved in wakefulness and sleep regulation. By blocking histamine receptors in the brain, Sominex can help induce and maintain sleep, thus alleviating symptoms of insomnia. It is important to note that Sominex is not intended for long-term use and should only be used for short-term relief of sleep difficulties. It is recommended to consult with a healthcare professional for further guidance.

Price of Sominex

The cost of the Sominex varies from £0.46 to £0.65 per pills. It depends on the size of the pack and the amount of active ingredient (60 or 360 mg).

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Sominex is a commonly used over-the-counter sleep aid that contains the active ingredient diphenhydramine. It is primarily used to temporarily relieve symptoms of insomnia, such as difficulty falling asleep or staying asleep. Diphenhydramine belongs to a class of medications known as antihistamines, which work by blocking the effects of histamine in the brain to promote drowsiness.

Sominex is available in tablet form and should be taken orally with water. It is typically recommended for short-term use and should not be used for more than two weeks without medical supervision. While Sominex can be an effective solution for short-term sleep problems, it is important to be aware of its potential side effects and drug interactions, as well as following the proper usage instructions to ensure safe and effective use.

What to Avoid When Taking Sominex

There are certain situations and conditions in which the use of Sominex should be avoided. It is important to consult with a healthcare professional before taking Sominex if:

  • You are allergic to diphenhydramine or any other antihistamine medication.
  • You have narrow-angle glaucoma, a condition characterized by increased pressure in the eye.
  • You have difficulty urinating due to an enlarged prostate gland.
  • You have severe liver disease.
  • You are pregnant or breastfeeding.

Managing Side Effects

Like all medications, Sominex may cause side effects. Common side effects of Sominex include drowsiness, dizziness, blurred vision, dry mouth, and constipation. These side effects are usually mild and may subside as your body adjusts to the medication. However, if these side effects persist or worsen, it is advisable to consult a healthcare professional.

In some cases, Sominex may cause more serious side effects. Seek immediate medical attention if you experience any of the following:

  • Signs of an allergic reaction such as rash, itching, swelling, severe dizziness, or difficulty breathing.
  • Irregular or fast heartbeat.
  • Mental or mood changes, confusion, hallucinations.
  • Difficulty urinating.
  • Severe drowsiness or difficulty waking up.

Usage Instructions

When using Sominex, it is important to follow the recommended usage instructions for safe and effective results:

  • Take Sominex as directed by your healthcare professional or follow the instructions on the product label.
  • Do not exceed the recommended dosage. Taking more than the recommended dose may increase the risk of side effects.
  • Sominex is typically taken before bedtime to help induce sleep. It should not be taken during the daytime unless directed by a healthcare professional.
  • If you miss a dose of Sominex, take it as soon as you remember. However, if it is close to your next scheduled dose, skip the missed dose and resume your regular dosing schedule. Do not take a double dose to make up for a missed one.
  • In case of an overdose, seek immediate medical attention. Symptoms of overdose may include extreme drowsiness, confusion, hallucinations, seizures, and loss of consciousness.

Drug Combinations

Sominex may interact with other medications, leading to potential side effects or reducing the effectiveness of either or both drugs. It is important to inform your healthcare professional about all medications, vitamins, and herbal supplements you are currently taking before using Sominex.

Some known drug interactions with Sominex include:

Drug Interactions Effect
Antidepressants Increased sedation and risk of drowsiness
Anti-anxiety medications Enhanced sedative effect
Monoamine oxidase inhibitors (MAOIs) Increased risk of severe side effects
Narcotic pain medications Potential for increased respiratory depression

Inquiring About Sominex

  • Q: Can I take Sominex if I am pregnant or breastfeeding?
  • A: Sominex should be avoided during pregnancy and breastfeeding, as it may pass into breast milk and could harm the baby.
  • Q: Can I drive a vehicle or operate machinery after taking Sominex?
  • A: Sominex may cause drowsiness and impair your ability to drive or operate machinery. It is advisable to avoid these activities until you know how Sominex affects you.
  • Q: Can I drink alcohol while taking Sominex?
  • A: It is not recommended to consume alcohol while taking Sominex, as it may increase the sedative effects of the medication.
  • Q: How long can I use Sominex?
  • A: Sominex is typically recommended for short-term use to relieve temporary insomnia. If your sleep problems persist, it is important to consult a healthcare professional for further evaluation and guidance.
  • Q: Is Sominex addictive?
  • A: Sominex can be habit-forming if used for an extended period or in higher doses than recommended. It is important to follow the recommended usage instructions and consult a healthcare professional if you have concerns about dependency.


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