For an in-text citation in your work, you would cite your reference as follows:
The patient information leaflet for Paracetamol recommends a 500mg dose (Zentiva Pharma Limited, 2022).
Zentiva Pharma Limited (2022) indicate that Paracetamol...
Physical Item
Zentiva Pharma Limited. (2022) Patient information leaflet: Paracetamol 500mg capsules. Guildford: Zentiva Pharma Limited. PL 17780/0069.
Online/electronic
Zentiva Pharma Limited. (2022) Patient information leaflet: Paracetamol 500mg capsules. Guildford: Zentiva Pharma Limited. PL 17780/0069. Available at:https://www.medicines.org.uk/emc/product/5164/pil#gref (Accessed: 21 November 2022).