Doxycycline
"I've been on Doxy for about four days, and the nausea is horrible. Today I had to leave my final exam because I was afraid I'd vomit. It's been that way since the first time I took it. I tried not eating with it, since that's what the bottle instructs, but the nausea isn't so bad if I eat. I have noticed improvements though. I'd had a bad respiratory infection for months but didn't know what it was. Finally got diagnosed and got this, and now I don't feel like death, but I do have a horrible headache. Didn't realize it could have been a side effect of it, but that makes sense now. Basically, it's a good cure for the respiratory infection, but the side effects are bad.
On a side note, it'll be cool to see what it does with my mild acne."