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What is Demeclocycline and explain in detail?
Demeclocycline (INN, BAN, USAN, brand name Declomycin) is a tetracycline antibiotic which was derived from a mutant strain of Streptomyces aureofaciens.

Uses
Demeclocycline is officially indicated for the treatment of various types of bacterial infections. It is used as an antibiotic in the treatment of Lyme disease, acne, and bronchitis. Resistance, though, is gradually becoming more common, and demeclocycline is now rarely used for treatment of infections.It is widely used (though off-label in many countries including the United States) in the treatment of hyponatremia (low blood sodium concentration) due to the syndrome of inappropriate antidiuretic hormone (SIADH) when fluid restriction alone has been ineffective