摘要:
The rectal absorption of the beta-lactam antibiotic ceftriaxone in a solid dosage form is enhanced with chenodeoxycholic acid or its sodium salt, in the presence of a carrier consisting of a mixture of two or more glycerides of C.sub.12 to C.sub.18 fatty acids.
摘要:
A microcapsule produced by preparing a water-in-oil emulsion comprising an inner aqueous layer containing said water-soluble drug and a drug retaining substance therefor and an oil layer containing a polymer substance, then thickening or solidifying said inner aqueous layer to a viscosity of not lower than about 5000 centiposes and finally subjecting the resulting emulsion to in water drying gives prolonged release of water-soluble drug.
摘要:
Systems and their methods of preparation and use that release an active agent in a controlled manner for an extended period in a vaginal cavity environment. The systems are capable of delivering the active agent for periods greater than three hours at a predictable rate to a predetermined site, the vaginal cavity.
摘要:
Fatty acids having 8 to 14 carbon atoms, leucinic acid and nontoxic salts thereof promote the absorption of a pharmacologically-active substance through the rectum into the blood stream and effectively raise the concentration of such active substance in the blood stream even when said active substance is one which is usually absorbable through the rectum only with considerable difficulty.
摘要:
Compounds satisfying four specific requirements, namely: (1) a log P value in the range of from 2.5 to 6, (2) a molecular structure with at least one carboxyl group, (3) a pKa value for the carboxyl group of not less than 2.5 and (4) absence of halo substitution, and nontoxic salts thereof promote absorption of pharmacologically-active substance through the rectum into the bloodstream and are effective to raise the concentration of such active substance in the bloodstream even when the active substance is usually unabsorbable or absorbable through the rectum only with considerable difficulty. The compounds are combined with pharmacologically-active ingredients, with pharmaceutical bases suitable for rectal administration of drugs and with appropriate combinations of both.
摘要:
A vaginal contraceptive suppository having both a rapid release of active ingredient and prolonged duration of effectiveness. The suppository comprises a mixture of sodium starch glycolate, a thickening agent and a vegetable oil base combined with a spermicide.
摘要:
A suppository base composition comprising 5-80% by weight of polyethylene glycol, 5-80% by weight of triglyceride of fatty acid having 6-22 carbon atoms and 5-80% by weight of a specifically limited alkylene oxide derivative has a melting point of 30.degree.-60.degree. C., a compatibility with both of a polar drug component and a non-polar drug component, and can provide suppositories having excellent moldability and storage stability.
摘要:
The disclosed lubricating suppository is formulated to have properties advantageous for coital use, including extraordinary water washability. The ingredients and phase relationships of the suppository composition provide a high degree of compatibility with water and with naturally-occurring vaginal moisture. The suppository composition contains a glyceride lubricant and can be lubricious with or without the presence of moisture. The suppository, which is solid at room temperature but melts in a short time at body temperature, is made by dissolving, for example, 10-30 parts by weight of high-HLB (e.g. >14) nonionic surfactant in 50-70 parts by weight of a molten, water-soluble polyoxyethylene glycol component and by dispersing or emulsifying 10-20 parts by weight of the glyceride (e.g. a triglyceride of C.sub.6 -C.sub.18 aliphatic carboxylic acids) included in the composition. In use, the suppository can be inserted prior to coitus and permitted to melt to a liquid, which is lubricious even in the absence of moisture, but still has the aforementioned extraordinary water washability.