An important message from Express Chemist

In these unprecedented times due to COVID-19 we are listening to the latest advice from the government and their health specialists. We are continuing to work in these challenging times so that we can serve the needs of our customers.

Please note that we are receiving a particularly high volume of orders, enquiries, telephone calls and emails. We are working exceptionally hard to process orders and respond to customer enquiries as quickly as possible. Unfortunately it is currently taking a little longer to process and dispatch orders than usual, so please allow 2-3 working days for shipment.

Please also note that postal services and couriers are experiencing similar challenges so please allow longer delivery times than usual. We would be grateful if you can be patient and not contact us regarding your order before these times are up so we can reduce the pressure on our customer service team.

Thank you for your patience and understanding.

If you have symptoms of coronavirus stay at home and self-isolate for 10 days.
For information about coronavirus please click here.

Keep well and stay safe.

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Main Menu Pharmacy Medicines Allergies FAQs

Sedating Antihistamines

Antihistamines are commonly used to treat the symptoms of allergies and reactions to bites and stings.

Antihistamines generally come as tablets, creams, ointments and eye drops to reduce conditions such as watering, itchy eyes, running, itchy nose, sneezing, swelling and irritation of the eys, and to reduce hives, nettle rash and other allergic reactions.

Antihistamines work by blocking the action of histamine which the body produces as part of its natural defences. Histamine is released as a reaction to foreign substances (allergens), and starts a chain reaction that leads to the release of other chemicals that add to the allergic response. A typical result of which is itching.

There are two different types of antihistamine; sedating antihistamines, which can enter the brain and cause drowsiness and non-sedating antihistamines which do not.