Amounts received versus injections

[Robert66]

I read and see i received 10 vial and another i received 4 is a vial good 4 many injections ? I know the amounts varied but is the idea to receive 3 months worth or do you need to get refils all the time?

[bldoink]

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[Virginian]

I have kept vials in the freezer for over a year with no apparent loss of effectiveness. I thaw the vial and then load 8 to 10 pins, and then return the vial to the freezer. It works beautifully.