http://www.medications.com/effect/view/34767 I have been taking doxycycline hyclate for acne for the past three weeks and find that I am now urinating a lot especially after intake of liquids and it seems as if I empty the same amount that I consume.This is really very annoying and inconvenient. Sun, 28 Sep 2008 12:34:26 -0400 http://www.medications.com/effect/view/34767?item=12833 I have been taking doxycycline for the past 2 weeks and I have also experienced frequent urination. It is extremely annoying. http://www.medications.com/effect/view/34767?item=12833 Sun, 28 Sep 2008 14:46:26 -0400 http://www.medications.com/effect/view/34767?item=12836 I am also on doxycycline and I have had the ezact same effects. What ever I drink just goes right through me. http://www.medications.com/effect/view/34767?item=12836 Sat, 11 Oct 2008 09:34:22 -0400 http://www.medications.com/effect/view/34767?item=13307 I have prostatitus and was prescribed doxycycline Hy. for two months, 100 mg, twice a day. While I feel better from this malady, the drug makes me feel bad with most of the symptoms listed on this site. I have dizziness, tingling in my legs, restlessness http://www.medications.com/effect/view/34767?item=13307