Of the 1 causes of Dark nails that we have listed, we have the following prevalence/incidence information: 1  0 causes are very common diseases. 2  0 causes are common diseases. 3  0 causes are uncommon diseases. 4  0 causes are rare diseases. 5  0 causes are very rare diseases. 6  1 causes have no prevalence information.
Answers (1) Yes, you could take doxycycline for a strep throat but only if your doctor has prescribed it for you. There are however other antibiotics that will work better for a strep throat. Votes: +0.
Doxycycline is also used as a prophylactic treatment for infection by Bacillus anthracis (anthrax) and is effective against Yersinia pestis, the infectious agent of bubonic plague. It is also used for malaria treatment and prophylaxis, as well as treating elephantitis filariasis.