100mg twice a day, with lots of water, an hour before meals, as instructed. During the course I experienced severe bloating, trapped
gas, abdominal cramps, abdominal
pain, and belching (burping). The probiotics I was taking didn't seem to make any difference.
I knew that any of the Tetracycline antibiotics, and especially Doxycycline, could have gastro side effects, and I stuck with the pills, after contacting my GP who prescribed them.