Category Internal Medicine

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General information Cetrimonium bromide and cetrimide are quaternary ammonium antiseptics, trimethylammonium derivatives, with similar structures. Cetrimonium bromide is hexadecyltrimethylammonium. Cetrimide is a mixture of tetradecyltrimethylammonium (mostly), dodecyltrimethylammonium, and hexadecyltrimethylammonium. They dissociate in aqueous solution, forming a relatively large and complex…

See also Antihistamines General information Cetirizine is a non-sedating metabolite of hydroxyzine [ ]. There is only minor hepatic metabolism of cetirizine [ ], which is excreted unchanged in the urine. It has not been associated with dysrhythmias. Skin reactions…

General information Cesium is a silver-white soft alkaline metallic element (symbol Cs, atomic number 55). It is used industrially in photoelectric cells and as a catalyst for the hydrogenation of some organic compounds. The natural resonance frequency of excited caesium…

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See also HMG coenzyme-A reductase inhibitors General information Weight for weight, cerivastatin is the most potent statin. Like other statins, the chance of rhabdomyolysis increases when cerivastatin is taken together with certain other drugs [ ]. Although cerivastatin is degraded…

General information The cephalosporins represent a family of beta-lactam antibiotics originally derived from the naturally occurring cephalosporin C. Isolation of the cephalosporin C nucleus, 7-aminocephalosporanic acid, made it possible to introduce new groups into this molecule to obtain the current…

See also Beta-adrenoceptor antagonists General information Celiprolol is a beta 1 -selective antagonist with partial beta 2 -agonist activity. In healthy volunteers it caused “particularly unpleasant” subjective adverse reactions, including headache, sleepiness, and feeling cold and generally unwell [ ].…

See also COX-2 inhibitors (coxibs) General information Celecoxib is a selective COX-2 inhibitor. Organs and systems Cardiovascular The risk of cardiovascular events with celecoxib has been studied in a systematic review and meta-analysis of randomized double-blind trials of at least…

General information The genera in the family of Celastraceae ( Table 1 ) include bittersweet and khat. Table 1 Genera of Celastraceae Canotia (canotia) Gyminda (false box) Pristimera (pristimera) Cassine (cassine) Lophopyxis Salacia Catha (khat) Maytenus (mayten) Schaefferia (schaefferia) Celastrus…