摘要:
The invention provides a diagnostic composition for administration to human or animal subjects the composition containing multilamellar liposomes, optionally together with unilamellar liposomes, the liposomes containing at least one imaging agent and being suspended in an aqueous medium containing said imaging agent, wherein the liposomes comprise a neutral phospholipid and a charged phospholipid, the average particle diameter of the liposomes is 50-3000 nm and the concentration of imaging agent in any aqueous phase filling the interior of the liposomes is substantially the same as that in the aqueous medium in which the liposomes are suspended. The contrast agents concerned are typically X-ray, MRI or ultrasound contrast agents.
摘要:
The present invention is directed to particulate carriers useful as drug carriers in a drug delivery system (DDS) and to pharmaceutical compositions making use of such carriers. The invention is characterized by the use, as the particulate carrier, of: graft copolymer (A) whose graft chain is poly N-alkylacrylamide chain, poly N-alkylmethacrylamide chain, etc.; and a composition containing a combination of the graft copolymer (A) and at least one graft copolymer selected from the group consisting of graft copolymers (B-1) having polyacrylic acid or polymethacrylic acid as the graft chain and graft copolymers (B-2) having a polyvinyl amine compound as the graft chain.
摘要:
An oral vaccine comprising a complex of an antigen with a lipid, wherein the lipid contains a phospholipid comprising a glycolipid and/or phosphatidylserine combined with mannose. The vaccine serves to produce efficiently an antibody against the above antigen after being orally administered to living organisms. It makes it possible to administer orally a microbial antigen or a weakly virulent microbe which has not been orally absorbable and has been incapable of producing an antibody thereagainst.
摘要:
The present invention is directed to a pharmaceutical composition for oral administration, comprising a basic drug, a lipophilic substance, and/or a cyclodextrin. The composition exhibits improved peroral absorption of a basic drug which is difficult to be absorbed by oral administration.
摘要:
This invention aims at improving stability of drugs which have poor stability in aqueous solution, and the stability of such drugs are improved by incorporating the drugs in liposomes which have a sphingolipid as the main component of the liposomal membrane-constituting lipids.
摘要:
The present invention relates to a pharmaceutical solution comprising the following components (A) and (B): (A) a compound represented by the following formula (1):
or a salt thereof, or a hydrate thereof; and (B) a multivalent metal compound, wherein molar ratio of the component (B) to component (A) (the multivalent compound / component (B)) is 0.01 to 0.7. A pharmaceutical solution adapted for intravascular administration containing the quinolone compound at a therapeutically sufficient amount is provided, and this solution exhibits reduced toxicity even when the multivalent metal compound were incorporated at a reduced amount.
摘要:
The present invention provides liposome preparations capable of efficiently holding water soluble substance particularly non-electrolytic water soluble substances. Liposomes and suspensions thereof comprising multilamellar liposomes characterized in that the liposome membrane is formed from a neutral phospholipid comprising a substantially saturated fatty acid residue a charged phospholipid comprising a substantially saturated fatty acid residue, ratio of said neutral phospholipid and charged phospholipid is 200:1 to 3:1, weighted average particle size of the liposome is 50 nm to 3,000 nm, and an encapsulation capacity of the liposome (internal aqueous phase (volume)/lipids (weight)) is at least 5 mℓ/g. The present liposome preparation can encapsulate an aqueous solution of a non-electrolytic water soluble substances with an encapsulation capacity (internal aqueous phase/lipids) of at least 5 mℓ/g.
摘要翻译:本发明提供能够有效保持水溶性物质,特别是非电解水溶性物质的脂质体制剂。 包含多层脂质体的脂质体和悬浮液的特征在于脂质体膜由包含基本上饱和的脂肪酸残基的中性磷脂形成,包含基本上饱和的脂肪酸残基的带电磷脂,所述中性磷脂和带电磷脂的比例为200:1至 如图3:1所示,脂质体的加权平均粒径为50nm〜3000nm,脂质体(内部水相(体积)/脂质(重量))的包封容量为5ml / g以上。 本脂质体制剂可以包封具有至少5m l / g的包封能力(内部水相/脂质)的非电解水溶性物质的水溶液。