Doxycycline is an antibiotic, tetracycline, and it can treat Mycoplasma chlamydia infection. Its properties are pale yellow or yellow crystalline powder, smelly and bitter in taste. It is easily soluble in water or methanol, slightly soluble in ethanol or acetone, and insoluble in chloroform.
Mainly used to treat respiratory, urinary and biliary infections caused by sensitive bacteria. The antibacterial spectrum is basically the same as that of tetracycline and oxytetracycline, and the antibacterial power in vivo and in vitro is stronger than that of tetracycline.
Microorganisms have close cross-resistance to this product, tetracycline and oxytetracycline. Good oral absorption. It is mainly used for upper respiratory tract infections, tonsillitis, biliary tract infections, lymphadenitis, cellulitis, chronic bronchitis of the elderly, etc. caused by sensitive gram-positive bacteria and gram-negative bacilli. It is also used to treat typhus and chiangella. Disease, mycoplasma pneumonia, etc. It can still be used to treat cholera, and it can also be used to prevent falciparum malaria and Leptospira infection
Oral: 0.1g once, twice a day. The first dose can be doubled if necessary. Children over 8 years old: the first dose is 4mg per kilogram of body weight; afterwards, 2 mg per kilogram of body weight each time, twice a day. The general course of treatment is 3 to 7 days. Prevention of falciparum malaria: 0.1g per week; prevention of lenticularis: 2 times a week, 0.1g each time.