Effects of doxycycline long term

Hello,
I was interested in the discussion about benign intracranial hypertension and doxycycline. I was put on doxy 2 years ago for my skin. I'm a distance runner and also an asthmatic and have a very high pain threshold and discomfort tolerance, but over time I noticed I was struggling more and more with various things - going up hill was a struggle and began to give me that same sensation you can get when flying. It eventually got so bad, I couldn't close a car door without experiencing that sensation. Doctors weren't sure and it was only after I asked if it could be the doxy that one thought that was probable. After going off the drug, things did improve, but even 2 years later, I still have some residual problems, mostly felt with poorer breathing while running. Being on supplements has helped somewhat and I expect it will be a long time before I'm 100%, but I did want to note that severe and long-term problems can result from taking this type of medication. I certainly don't fit the profile of BIH (obese) as I'm small and thin, but I wonder if the dosage given to patients is really thought about. Surely giving me the same dosage as a large person is counterintuitive. I weigh just over 100 pounds, after all.
I'd be interested to learn if any other people, perhaps asthmatics, have had similar experiences. I expect my situation is noticeable because I run extensively so am very aware of even small changes in my health. But I would be curious to know whether my experience has been had by others and if so, how many years before they returned to normal.


This discussion is related to Doxycycline Headache.

[soca3]

Hello,

I am asthmatic and I am also an avid runner (4-5 miles every other day). After one week of doxycycline I have had chronic headaches in the back of my head. I did not experience poorer breathing, but the headaches have made me weaker with less energy.
Hope this helps.