Intestinal parasites are my companion in Costa Rica. Every six months or so I make a trip to the pharmacy and ask for pastillas antiparasiticos. The most common over-the-counter pill is the anti-protozoal agent Nitazoxanide: two pills a day for three days to treat an array of intestinal parasites. The pills scour your digestive system, […] The post My Twice Yearly Parasite Routine in Costa Rica appeared first on The Tico Times | Costa Rica News | Travel | Real Estate .