Nail discoloration, in which the nails appear white, yellow, or green, can result from different infections and conditions of the skin. In about 50% of cases, discolored nails are a result of infections with common fungi that can be found in the air, dust, and soil.
Doxycycline is well absorbed. After an oral dose of 200 mg of doxycycline, plasma concentrations of the drug reach a maximum of 3 micrograms/mL at 2 hours and are well maintained and thus dosage once daily is usually adequate. Absorption is diminished by the presence of iron, aluminium, calcium and magnesium. Doxycycline is widely distributed into pleural and peritoneal fluid, saliva, semen and prostatic fluid. It passes the placental barrier readily and is also present in the milk of lactating patients.
Doxycycline, a tetracycline derivative, treats conditions such as feline mycoplasma infections. Doxycycline is available in a liquid form that cat owners find easier to give their feline companions. The typical dose administered to cats is 2.5 mg per pound every 12 hours orally, according to Dr. Mark Papich. The duration of treatment with tetracycline medications depends on the illness being treated.