Abstract:
beta-diketone fluorescent tags are disclosed, particularly those enabling the use of excitation energy in the near visible or visible spectrum. In some cases, these tags allow the use of cost-effective excitation devices such as LED's. The compounds form fluorescent chelates (complexes) with lanthanide (III) rare earth metal ions (such as EU3+). The fluorescent complex may be included in a latex microparticle, such as a styrene latex particle. Ideally, the complex has an absorption maximum lambda equal to or greater than 360 nm, and the compound is characterized by a pKa
Abstract:
β-diketone fluorescent tags are disclosed, particularly those enabling the use of excitation energy in the near visible or visible spectrum. In some cases, these tags allow the use of cost-effective excitation devices such as LED’s. The compounds form fluorescent chelates (complexes) with lanthanide (III) rare earth metal ions (such as EU3+). The fluorescent complex may be included in a latex microparticle, such as a styrene latex particle. Ideally, the complex has an absorption maximum λ equal to or greater than 360 nm, and the compound is characterized by a pKa
Abstract:
Composición farmacéutica que comprende: (i) un fosfolípido; (ii) un disolvente orgánico aprótico polar; (iii) un disolvente orgánico prótico polar; (iv) hidroxipropilmetilcelulosa; y (v) un agente farmacéuticamente activo, estando la composición farmacéutica en forma de un gel.
Abstract:
Provided are compositions and methods for extending the release times and lowering the toxicity of pharmacologically active compounds. The compounds comprise a salt of the pharmacologically active compound with a lipophilic counterion and a pharmaceutically acceptable water soluble solvent combined together to form an injectable composition. The lipophilic counterion may be a saturated or unsaturated C8-C22 fatty acid, and preferably may be a saturated or unsaturated C10-C18 fatty acid. When injected into a non-human mammal, at least a portion of the composition precipitates and releases the active compound over time. Thus, the composition forms a slowly releasing drug depot of the active compound in the mammal. Therefore, controlled dose administration of the active compound is provided for a period of up to 15 days or longer. Many compounds can be administered including, but not limited to, tilmicosin, oxytetracycline, metoprolol, fluoxetine, roxithromycin, and turbinafine. Figure 3 is a graphical depiction illustrating that the rate of release of the pharmacologically active compound, tilmicosinm is affected by the chain length of the fatty acid selected. Solvent: N-methyl pyrrolidone; lipophilic counterion: decanoic acid and lauric acid.
Abstract:
The present invention relates to compositions containing at least two pharmacologically active ingredients. The compositions comprise a proton-donating pharmacologically active ingredient and a proton-accepting pharmacologically active ingredient in the form of a neutral salt. The salt can be dissolved in a solvent. Also provided are methods of administering pharmacologically active ingredients and methods of treating a disorder in an animal comprising administering to an animal in need thereof a salt of the invention.