“Quinine, as well as being used as a prophylactic against malaria, was also considered to be an appetite stimulant and a more general antidote to fever.”

“The Colonial Office thought that spending money on economic development projects would be a better long-term prophylactic against unrest.”

“Let that be a lesson to ya, laddie. Always wear a prophylactic!”

“It is also highly recommended that people take prophylactics against malaria.”

“You'll need hepatitis and typhus shots, and you'll need to take malaria prophylactics while there.”

“More than a third of the population suffer from a virulent strain of malaria, so consult your doctor about effective prophylactics.”