Sedating Antihistamine Policy

Sedating Antihistamine Policy | Travelpharm Online Pharmacy

Travelpharm is aware that from time to time we all suffer from sleeping difficulties. Whether this is due to a change in shift patterns, or a period of stress. This is why Travelpharm provides assistance for customers struggling to sleep by selling popular over-the-counter sedating antihistamines like Nytol and Phenergan Night-Time. 

Unfortunately, sedating antihistamines tend to be frequently misused.

In order to ensure supplies made are appropriate, we have set below the minimum duration of time we expect between orders and the maximum amount that may be ordered.  In addition, we do not permit the sales of opiates and promethazine together due to the risk of potentially significant adverse events.

This means that there is clear unambiguous guidance to ensure that we retail medicines in a safe and professional manner, minimising the risk of medication misuse.  

To help us we use software to restrict sales of products by type, quantity and also frequency.  

The interval time for each product is based on using each product at the maximum permitted daily dose as set out in the product information leaflet. Travelpharm reserves the right to cancel any order where we suspect medication misuse.  This policy reflects quantities and minimum interval times for purchases and is applied across both websites that we operate.


ProductPack SizeNumber Of Packs
Per Order
Minimum Time
Between Orders
Diphenhydramine Hydrochloride Sleeping Tablets 25mg20220
Diphenhydramine Hydrochloride Sleeping Tablets 50mg20240
Nytol 25mg Caplets20220
Nytol One-A-Night 50mg Tablets20240
Phenergan 10mg Tablets56128
Phenergan 25mg Tablets56128
Phenergan Night Time 25mg Tablets14128

Phenergan Elixir


Sominex Tablets


Avomine Tablets


Avomine Tablets



If you find that you regularly need to take medicines to help you sleep you should speak to your GP and learn about lifestyle changes you can make to improve your sleep habits.  The NHS has some great advice.