The UK rules apply to all medicines containing paracetamol. Non-pharmacy retailers are only allowed to sell in packs of 16, and they'll usually only allow two

The UK rules apply to all medicines containing paracetamol. Non-pharmacy retailers are only allowed to sell in packs of 16, and they'll usually only allow two packs of any paracetamol-containing medication to be sold at a time (eg. one cold/flu and one cough remedy). If the name of the product doesn't already contain the word "paracetamol", then all of the packaging must prominently display "contains paracetamol" - so even small retailers that don't have computerised checkouts are expected to follow the same rules. Deaths from paracetamol overdose fell by 43% (with a similar decrease in the rate of accidental poisonings) in the first 11 years after these changes were implemented: https://www.bmj.com/content/346/bmj.f403 https://www.bmj.com/content/346/bmj.f403