Warning!- Don't take this antibiotic! I went to the Dr. for sinus infection. The first day I stared feeling worse; achy,tired, nasuea, headache. Second day I had severe shooting pains in my head, loss of appetite, general weakness, aching allover like feverpain. then periods of high anexiety and nervousness, my stomache was cramping,alot of gas. Third day severe oains in head increased,general felling bad and weakness, While sitting and writing I developed severe shoulder pain. the tendons cramped and I could barely extend my arm. The pain the went to the tendons on either sid of my elbow and weakness down into my hand, my grip was affected. I know the Lord woke me up in the middle of the night to reveal my symptoms were a result of the Leviquin. I am a hairdresser/stylist and this is serious! I will put upa sign in my shop warning people about this Dangerous drug! When I red all the other warnings, I'm so mad this is still on the market! I hope the side effects leave Quickly!