I have been taking this for about 2-3 and ever since I've been on...

I have been taking this for about 2-3 and ever since I've been on this pill I have been experiencing stomach discomfort. I have never had stomach problems in my entire life so this is unusual. I am taking this pill as a malaria medicine because I will be traveling out of country, and also as an acne medicine. I have never had a side effect to any pill before, but last night I was throwing up like crazy and had to go to the emergency room at the hospital. They did not find anything wrong but I am sure it is this medicine and will stop taking because I do not want liver damage.