Medicated syringe preparation
First Claim
1. A transparent syringe prefilled with a drug solution, said transparent syringe having been obtained by molding a resin composition comprising, as a base material, a propylene polymer, and as a nucleating agent, a phosphoric ester represented by the following general formula (1):
- ##STR4## wherein R1, R2, R3 and R4 mean individually a hydrogen atom or a straight-chain, branched or cyclic alkyl which may be substituted, R denotes a direct bond, sulfur atom or alkylidene group, x and y stand individually for 0 or 1, M denotes a metal atom, and n means a valence of the metal, said transparent syringe, prefilled with a drug maintaining its transparency and being free Of contamination upon prolonged storage of at least 6 months at 40°
C.
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0 Petitions
Accused Products
Abstract
This invention relates to a preparation comprising a transparent syringe body or container, which has been obtained by molding a resin comprising, as a base material, a propylene polymer, and as a nucleating agent, a phosphoric ester represented by the following general formula (1): ##STR1## and a drug solution charged into the syringe body or container. The preparation is excellent in transparency, free from the dissolution of additives for the resin into the drug solution charged therein even when the drug solution remains charged for a long period of time and hence high in safety. The preparation is useful, in particular, as a syringe preparation charged with a drug solution therein.
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Citations
8 Claims
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1. A transparent syringe prefilled with a drug solution, said transparent syringe having been obtained by molding a resin composition comprising, as a base material, a propylene polymer, and as a nucleating agent, a phosphoric ester represented by the following general formula (1):
- ##STR4## wherein R1, R2, R3 and R4 mean individually a hydrogen atom or a straight-chain, branched or cyclic alkyl which may be substituted, R denotes a direct bond, sulfur atom or alkylidene group, x and y stand individually for 0 or 1, M denotes a metal atom, and n means a valence of the metal, said transparent syringe, prefilled with a drug maintaining its transparency and being free Of contamination upon prolonged storage of at least 6 months at 40°
C. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- ##STR4## wherein R1, R2, R3 and R4 mean individually a hydrogen atom or a straight-chain, branched or cyclic alkyl which may be substituted, R denotes a direct bond, sulfur atom or alkylidene group, x and y stand individually for 0 or 1, M denotes a metal atom, and n means a valence of the metal, said transparent syringe, prefilled with a drug maintaining its transparency and being free Of contamination upon prolonged storage of at least 6 months at 40°
Specification