Azithromycin
"I am currently 10 weeks and 2 days pregnant and upon going for normal blood work required I was diagnosed with chlyamidia. I was prescribed 2 single dose tablets in 500mg. Took them and threw up 4 hrs later. For me it makes it a lot harder since naturally I usually feel nauseated. I literally had to try and sleep or just lay down to avoid throwing the pills up to soon. I wanted to vomit as soon as I swallowed them. However I'll take that cause my health is way more important."