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 a tetracycline antibiotic. It works by slowing the growth of bacteria in the body. Doxycycline 100mg is used to treat many different bacterial infections, for example urinary tract infections, gonorrhea, chlamydia, periodontitis (gum disease), and even acne.