I'm sorry, but I don't remember the date when we actually formalized the process. However, for many years now, before a member is given an anti-malarial medication and if there are a large number going out, they may receive a briefing on each of the anti-malarial medications, informing them about the potential side effects and the potential contraindications to using those medications.
They fill in a questionnaire that would help the clinician to identify whether they may have contraindications to the use of mefloquine and then they have a discussion with the clinician regarding which is the best anti-malarial medication for them.