Posted 4/14/2015 1:59 AM (GMT 0)
Hey there! I found out when I was twelve that I am allergic to Tetracycline and that eliminates all cyclines for me. If you were able to take it for a while I do wonder why you developed an intolerance for it.
It is possible then that the intolerance is for an ingredient other than the "cycline" part. Even if it is, like for me, there is no shortage of alternative antibiotics to treat you so do not worry there! ;)