I had been suffering from a lingering sinus infection that lead to having Epididymitis (testicular pain). My doctor gave me Levaquin (750mg)/day for 14 days. I read and check with the her about the drug. On the third day I woke up with a terrible itch on my legs. I took my dosage for the day at 7 AM and by 8AM I was in the ER. I had such a reaction to Levaquin that my blood pressure had dropped to 71/49. As soon as I started to feel the effects of reaction I took Benadryl. That saved my life.