Its been a while and I am guessing a bit but I suggest:
Codeine Phosphate - medium stength pain killer
Cyclizine - anti-seasickness
Diphenoxylate & Atropine - Anti-sh!ts
Paludrine - anti malaria
Proguanil - another name for paludrine and vice versa
Sodium Chloride and Dextrose - rehydration a la 'dioralyte'
Tetracycline - anti-bacterial but more probably anti-malarial for choloriquine/paludrine resistant malaria
Pentazocine - strong pain-killer