Azithromycin
"I tested positive for chlamydia, right away dr gave me the 4 pink pills to take all at once. She said it will make you very nauseous but you must keep it down for 4hrs so that it soaks into my system. She advised me to try eating after taking it. Once it kicked in, the pain and nausea were very strong. I didn't want to move because combined with the pain in my stomach, I felt I would vomit. This lasted about 45mins. It subsided and I was able to eat/drink some water. I slept fine. Now it's the next day and the nausea has returned, not as strong. I don't believe it will persist past today because it's not nearly as severe as when I took it. Eat before so there's something in your stomach; it'll hurt less."