Generic pen needle (kroger / perrigo, made by ypsomed) does not fasten securely to lilly insulin pen, when injecting insulin into daughter, insulin and a slight amount of blood occurred.There was no problem with prior provided bd and novo pen needles, they fasten securely.Lilly, the pen provider has not tested the kroger / perrigo / ypsomed needles, and will tell you they¿ve only tested with bd and novo.Ypsomed when contacted, only quotes they¿ve tested to iso 11608-2, which means nothing as near as i can tell.
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