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Demeclocycline is officially indicated for the treatment of various types of bacterial infections. [3] It is used as an antibiotic in the treatment of Lyme disease, [4] acne, [5] and bronchitis. [6] Resistance, though, is gradually becoming more common, [7] and demeclocycline is now rarely used for treatment of infections. [8] [9]
Synthetic aquaretics are vasopressin receptor antagonists and include conivaptan, tolvaptan, demeclocycline, and mozavaptan (OPC-31260), as well as lithium. Conivaptan hydrochloride and tolvaptan have been approved by the FDA for treating syndrome of inappropriate antidiuretic hormone. [4] [5] Mozavaptan is approved in Japan. [citation needed]
Demeclocycline can be used in chronic situations when fluid restrictions are difficult to maintain; demeclocycline is the most potent inhibitor of Vasopressin (ADH/AVP) action. However, demeclocycline has a 2–3 day delay in onset with extensive side effect profile, including skin photosensitivity, and nephrotoxicity. [19]
The "vaptan" drugs act by directly blocking the action of vasopressin at its receptors (V 1A, V 1B and V 2).These receptors have a variety of functions, with the V 1A and V 2 receptors are expressed peripherally and involved in the modulation of blood pressure and kidney function respectively, while the V 1A and V 1B receptors are expressed in the central nervous system.
Demeclocycline, a tetracycline antibiotic, which is effective due to the side effect of inducing nephrogenic diabetes insipidus. [ 30 ] [ 36 ] Demeclocycline is used for cases of psychogenic polydipsia, including those with nocturnal enuresis (bed-wetting).
When ingested, it is usually recommended that the more water-soluble, short-acting tetracyclines (plain tetracycline, chlortetracycline, oxytetracycline, demeclocycline and methacycline) be taken with a full glass of water, either two hours after eating or two hours before eating.
Figure 1.0 - Basic anatomical features of the human eye. Ophthalmic drug administration is the administration of a drug to the eyes, most typically as an eye drop formulation. Topical formulations are used to combat a multitude of diseased states of the eye. These states may include bacterial infections, eye injury, glaucoma, and dry eye. [1]
Tolvaptan, sold under the brand name Samsca among others, is an aquaretic drug that functions as a selective, competitive vasopressin receptor 2 (V 2) antagonist used to treat hyponatremia (low blood sodium levels) associated with congestive heart failure, cirrhosis, and the syndrome of inappropriate antidiuretic hormone (SIADH).