Until yesterday, I took 14 days of a 4 week prescription of 100 m...

Update after 6 days off doxy. The first few days were hell as the anxiety was pretty overwhelming and came in waves of just pure fear that lasted a few seconds. I controlled it by exercising 2-3 times a day but the exercise has to be vigorous exercise such as a 5 mile run or hour bike ride to really knock it back. This baseless anxiety-fear-panic has now turned into waves of shear energy excitement. I now am energized and have to continue to burn it off via exercise. This is one of the most bizarre side effects I have ever experienced but it does appear to be slowly resolving itself. Exercise has an immediate affect as does eating a large meal. Both cause a release of serotonin. Another way you can get a temporary increase is by going out in the sun. I can only guess that doxy is having some affect by depressing the serotonin levels in my brain. Exercise gives me an immediate boost and the results are good but only last for a few hours.

Update after 10 days off doxycycline. I am almost back to normal and my anxiety is 95% gone. I can not even describe how intense the anxiety was due to doxycycline. I am very grateful and will never take this antibiotic again which is a shame because it is used a malarial prevention that is much safer than some of the other drugs that are known to cause paranoia.

For those that are suffering I think it is good to know that you should expect the anxiety to wear off. Exercise was a very useful way to counter the anxiety for me and will probably work for others.

Hi, I'm 18 and taking this pill, too. My dermatologist prescribed it to me because I have had acne for 9 years and now it's actually so bad he recommended I go to an endocrinologist to run blood tests and make sure it isn't something in me that is causing a problem. I decided to look this up because I have had about 3 nights that I just couldn't sleep, I caught myself gripping the car seat and checking the speedometer in the car when my dad was driving because it had been raining all day. I have taken 16 of these pills. I think I am going to stop. I have had other medicines get me all anxious so I guess I'm more "prone" to this side effect (I do not know exactly how to express that but I hope you know what I mean) Now that I know other people have had this symptom I'm going to stop for a bit while I schedule an appointment with the endocrinologist quick. I hadn't already because it's $175 for the first time and $100 every time after that. Well, best of luck to all of you. Thank you so much for posting :] I feel better now that I know where the anxiety is coming from.

I have had anxiety too. I don't know if exercising will work for me since another symptom I'm having is extreme fatigue but I will try. I'm tired of worrying about every little thing.