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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June 27th
2004
6:09 AM
Took Doxycyline for possible Lyme. I am bipolar. I had tightness in the face and mild headaches. Ground my teeth a real lot. Worst was I had anxiety/panic attacks so bad I couldn't work. I lost a lot of money because I was afraid to go on a roof that I built. Doxycyline set off my manic episodes with 24 hours.
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