If you are on any medication, consult your physician concerning
drug interactions before getting any innoculations or preventative
medications for travel.
Prefill your prescriptions, as they may not be available at your destination.
Make sure that any medication is kept in the original bottles.
Travelers with prescription medications should obtain a letter from a physician on official stationary.
Don't swim in rivers, lakes, and streams.
Choose means of transportation carefully.
Bring along an anti-diaretic (for example, Pepto Bysmol) to combat traveler's diarhea.