So after purchasing airline tickets recently, the airline's website suggested I check out Runway Health, an on-line travel medical clinic. After asking some fairly detailed background medical questions, as well as asking where you will be traveling, and getting a photo of your passport, a doctor suggests medication that will be appropriate for issues common to the places you will be traveling. No health insurance accepted, but the cost of the medical evaluation is low, and the cost of the medicine is reasonable. Since you are doing this from your home or office, and the medication is mailed to you, it's stress-free (just make sure you give yourself a few days before your trip to do it). If you don't have time before your trip to go to a primary care physician or your PCP doesn't handle travel medicine, this is a good option.