skin or soft tissue infection
"I was taking Doxycycline but was switched to Clarithromycin since it's summer and can't be in the sun with Doxy. Clarithromycin doesn't seem as strong as the Doxy for me at 500 mg 2x day, to get peak results. I too get a metal taste in mouth when taking this. I experience some fatigue, but I'm not sure if it is from the meds not being as strong as Doxy. Some people have mentioned stomach aches etc. like the person taking it for H-Pylori. That experience is die off of bacteria which causes the stomach aches etc. called herxing. The bacteria release toxins into our body after they are killed, and that is what causes the awful feeling. It is actually a good thing that doesn't last more than 2 hrs or so. Killing the bacteria is the goal."