Tekong has been declared malaria-free, so chemoprophylaxis has
been stopped since April this year. I'm going back to Tekong next
week, no antimalarials have been indented, so I assume
chemoprophylaxis is still stopped. They did issue permethrin
though.
Lariam is mefloquine, the once-a-week antimalarial drug issued to
most servicemen in Tekong, not just those who have G6PD. Maybe they
ordered Lariam instead of the generic, but the generic looks quite
cheap.
The other drug is doxycycline, taken once every day. Mefloquine is
contraindicated in epilepsy, depression, mood disorders and
anxiety. Neither drug is contraindicated in G6PD.