: The sale must be conducted by a pharmacist or a trained staff member under their direct supervision.

In the UK, buying ephedrine "cheaply" and legally is strictly controlled due to its potential use in the illegal manufacture of Class A drugs. You can purchase small amounts over-the-counter (OTC) at physical pharmacies, but anything beyond specific legal limits requires a prescription. Legal Restrictions for Over-the-Counter Sales

: It is illegal to buy a product containing ephedrine and a product containing pseudoephedrine at the same time in one transaction.

: High-street pharmacies like Boots or Superdrug carry common decongestants containing these ingredients. You will need to speak directly with the pharmacist to request them.

: Some registered UK pharmacies sell these products online, such as Medisave UK , though they may restrict sales to professional use only for certain formulations (e.g., injections).

: For higher doses or larger quantities (e.g., for chronic conditions like narcolepsy or asthma), you must consult a GP for a prescription, which can then be fulfilled at any standard pharmacy. Risks of "Cheap" Unregulated Sources