The present invention relates to a package including a container filled with a supersaturated solution of a contrast agent and sealed with a sealing means. The package includes a sealing means including carbon black. The invention further relates to a method for improving the stability of such a contrast agent during storage, in particular to a method comprising filling a container with a contrast agent and sealing the container with a sealing means comprising carbon black.本発明は、造影剤の過飽和溶液を充填し、密閉手段で密閉した容器を含むパッケージに関する。パッケージは、カーボンブラックを含む密閉手段を含む。本発明はさらに、このような造影剤の保存中の安定性を向上させる方法、特に造影剤を容器に充填し、カーボンブラックを含む密閉手段で容器を密閉することを含む方法に関する。
