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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).
Typical pharmacodynamic effects of the drug are an increase in net fluid loss, increase in urine output, and decrease in the osmolality of urine. Conivaptan inhibits its own metabolism in the body, displaying non-linear pharmacokinetics. About 99% of conivaptan found is bound to human plasma proteins over the range of 10 ng/mL to 1000 ng/mL.
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.
Tolvaptan phosphate is a drug used for the treatment of cardiac edema. It is a prodrug of tolvaptan, [1] [2] formulated as the salt tolvaptan sodium phosphate, for intravenous administration. Tolvaptan phosphate is converted into the active drug tolvaptan in the human body following administration.
Tylenol can be used to treat a few different conditions, such as: mild to moderate pain, fever, headaches, muscle aches, toothaches, backaches, colds, and discomfort from a vaccine, says Walia.
Ibuprofen (Advil or Motrin), naproxen (Aleve) and aspirin (Bayer or Ecotrin) are common pain relievers that belong to a class of medication called non-steroidal anti-inflammatory drugs (NSAIDs).
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Zohydro was approved for treating chronic pain, but the coalition is concerned about the drug's potency and abuse potential,' WWLP reports. A petition on Change.org calls Zohydro "the next OxyContin."