top of page

Phenergan 25mg tablets are indicated for the relief of allergic conditions. Phenergan can also be used to ease motion sickness, helping to prevent nausea so you can enjoy your trip without feeling sick and uncomfortable. Finally, Phenergan can be used as a short-term remedy for insomnia, or difficulty sleeping, helping you to drift off into a good night’s sleep.

Phenergan tablets

SKU: 5
Excluding VAT
  • Phenergan 25mg tablets are indicated: For short term use:

    • To treat adults with difficulty sleeping (insomnia)
    • To treat allergic conditions such as hay fever or rashes (like nettle rash or hives)
    • To treat or stop you feeling sick (nausea) or being sick (vomiting) such as travel sickness
    • For short term use: as a sedative for children aged 5 years and above

    How can the active ingredient promethazine hydrochloride help me?

    The active ingredient in Phenergan is promethazine hydrochloride, which is an antihistamine that belongs to a group of medicines known as phenothiazines. When you have an allergic reaction, your body creates a natural substance called histamine. Histamine sends signals around your body that trigger symptoms of allergy, such as a runny nose or watery eyes. Antihistamines work by blocking histamine, which prevents your symptoms so you won't have to tolerate an allergic reaction.

    How long does Phenergan make you sleepy?

    Promethazine (the active ingredient in Phenergan) will start to make you feel sleepy around 20 minutes after you take it and may work for up to 12 hours. If you're taking it for a cough or cold symptoms, allergies or nausea, your symptoms should start to improve within 20 minutes. The medicine should work for around 4 to 6 hours. Please take note of dosage requirements.

    Is Phenergan good for sleep?

    Phenergan also works directly on the brain to help you feel more relaxed. Many people find Phenergan helps them when travelling with motion sickness. Phenergan Tablets are used to treat the following conditions: For short term use: to treat adults with difficulty sleeping (insomnia).



    IMPORTANT NOTE: THIS DRUG IS SUBJECT TO SPECIAL TERMS. You will be emailed a set of questions prior to the sale going ahead.

bottom of page