I know that pain relievers are exempt from PST, but what items count as pain relievers?
To be considered a pain reliever, a medicament must have the primary purpose of relieving pain. Examples include analgesics, anaesthetics and pain tablets, as well as burn remedies, liniments and ointments that clearly have a primary purpose of relieving pain. Items that relieve pain but have a different primary purpose do not count as pain relievers. For example, a pin used to set a broken bone may relieve pain as a secondary purpose, but its primary purpose is to set the bone.
