I have experienced negative side effects from doxycycline. I have...

This registry is a place to share positive or negative side effects of using Doxycycline Hyclate. If you directly experienced a side effect while using Doxycycline Hyclate, then we encourage you to enter it here. Please note that entries here are the experiences of individual users, and in no way means that you or anyone else will experience the same side effect, since the same medication affects people in different ways. Please always contact your physician.
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sinus infection   sinus pressure   negative side effects   chest pains   perscribed   doxycycline   headaches