# Prescription medicines (non-toxic, non-flammable, including asthma inhalers) — Postal shipping restrictions by item category For Prescription medicines (non-toxic, non-flammable, including asthma inhalers), carrier is Royal Mail / Parcelforce; restriction type is restricted; scope is UK; Parcelforce Worldwide international with a visible prescription; conditions is Net quantity per parcel not to exceed 1 litre/1kg; Parcelforce advise against globalexpress for prescription medicines; if sent, a copy of the prescription must be visible on the outside of the parcel, recorded from its source on 2026-08-10. - **Item category:** Prescription medicines (non-toxic, non-flammable, including asthma inhalers) _(verified: appears in the quote below)_ - **Carrier:** Royal Mail / Parcelforce _(our reading, not quoted from the source)_ - **Restriction type:** restricted _(our reading, not quoted from the source)_ - **Scope:** UK; Parcelforce Worldwide international with a visible prescription _(our reading, not quoted from the source)_ - **Conditions:** Net quantity per parcel not to exceed 1 litre/1kg; Parcelforce advise against globalexpress for prescription medicines; if sent, a copy of the prescription must be visible on the outside of the parcel. _(verified: appears in the quote below)_ ## What the source says > If the customer is insistent, please advise them that the parcel must have a copy of the prescription visible on the outside of the parcel. If a prescription is not attached, no compensation is available if the item is delayed, or is undeliverable. ## Source - https://corporate.postoffice.co.uk/media/w5dlus1c/foia-response_foi2025_00179_appendix-d_rm-dangerous-goods-and-prohibited-and-restricted.pdf Last verified: 2026-08-10. Review by: 2027-08-10. Part of [Postal shipping restrictions by item category](https://referencesource.org/shipping-restrictions-by-class/).